仍在不停追逐 发表于 2023-12-22 20:50:11

浅谈WPF之DataGrid过滤，分组，排序

使用过Excel的用户都知道，Excel可以方便的对数据进行分组，过滤，排序等操作，而在WPF中，默认提供的DataGrid只有很简单的功能，那么如何才能让我们开发的DataGrid，也像Excel一样具备丰富的客户端操作呢？今天就以一个简单的小例子，简述如何在WPF中实现DataGrid的过滤，筛选，排序等功能。仅供学习分享使用，如有不足之处，还请指正。

涉及知识点

在本示例中，涉及知识点如下所示：

[*]CollectionView， CollectionView 类为实现 IEnumerable 接口的数据源提供分组和排序功能。
[*]CollectionViewSource，CollectionViewSource 类允许你从 XAML 设置 CollectionView 的属性。
注意：此两个类，是我们实现客户端过滤，分组，排序的关键。
 
普通绑定

 
1. 构建数据源

 
在WPF中，DataGrid的ItemSource属性用于绑定数据源，而数据源必须是实现IEnumerable接口的的列表类型，在本示例中，采用具有通知属性的列表类型ObservableCollection。当列表中元素数量发生变化时，可以实时的通知DataGrid进行刷新。
1.1 创建实体

在本示例中，为了测试，创建Student实体模型，如下所示：
public class Student
{
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources>public string No { get; set; }

<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources>public string Name { get; set; }

<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources>public int Age { get; set; }

<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources>public bool Sex { get; set; }

<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources>public string Class { get; set; }
}1.2 初始化数据源列表

在本示例采用MVVM模式开发，在ViewModel中创建ObservableCollection类型的Students列表，如下所示：
using CommunityToolkit.Mvvm.ComponentModel;
using DemoDataGrid2.Models;
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace DemoDataGrid2.ViewModels
{
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources>public class TestWindowViewModel:ObservableObject
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources>{
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources>private ObservableCollection<Student> students;

<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources>public ObservableCollection<Student> Students
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources>{
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources>get { return students; }
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources>set { SetProperty(ref students, value); }

<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources>}
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources>public TestWindowViewModel()
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources>{
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources>var parentName = new string { "张", "王", "李", "赵", "刘" };
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources>this.Students = new ObservableCollection<Student>();
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources>for (int i = 0; i < 100; i++)
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources>{
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources>Student student = new Student();
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources>student.No = i.ToString().PadLeft(3, '0');
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources>student.Name = parentName[(i % 4)] + i.ToString().PadLeft(2, 'A');
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources>student.Age = 20 + (i % 5);
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources>student.Sex = i % 2 == 0 ? true : false;
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources>student.Class = $"{(i % 3)}班";
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources>this.Students.Add(student);
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources>}
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources>}
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources>}
}注意：构造函数中的方法，用于创建Students列表，包含100名学生，分别对应不同的编号，姓名，年龄，性别，班级等信息。
2. 页面绑定

在ViewModel中创建数据源后，可以在Xaml中进行绑定【语法：ItemsSource="{Binding Students}"】，如下所示：
<Window x:
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources>xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources>xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources>xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources>xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources>xmlns:local="clr-namespace:DemoDataGrid2"
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources>mc:Ignorable="d"
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources>Title="DataGrid示例" Height="450" Width="800">
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Grid>
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Grid.RowDefinitions>
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><RowDefinition Height="Auto"></RowDefinition>
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><RowDefinition></RowDefinition>
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources></Grid.RowDefinitions>
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><DockPanel Grid.Row="0">
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources>
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources></DockPanel>
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><DataGrid Grid.Row="1" ItemsSource="{Binding Students}" AutoGenerateColumns="False" CanUserAddRows="False" CanUserDeleteRows="False" >
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><DataGrid.Columns>
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><DataGridTextColumn Header="学号" Binding="{Binding No}" Width="*"></DataGridTextColumn>
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><DataGridTextColumn Header="姓名" Binding="{Binding Name}"Width="*"></DataGridTextColumn>
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><DataGridTextColumn Header="年龄" Binding="{Binding Age}"Width="*"></DataGridTextColumn>
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><DataGridTemplateColumn Header="性别"Width="*">
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><DataGridTemplateColumn.CellTemplate>
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><DataTemplate>
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><TextBlock x:Name="sex">
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><TextBlock.Style>
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources>
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources></TextBlock.Style>
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources></TextBlock>
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources></DataTemplate>
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources></DataGridTemplateColumn.CellTemplate>
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources></DataGridTemplateColumn>
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><DataGridTextColumn Header="班级" Binding="{Binding Class}"Width="*"></DataGridTextColumn>
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources></DataGrid.Columns>
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources></DataGrid>
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources></Grid>
</Window>以下两点需要注意：

[*]在本示例中，性别为bool类型，要转换成汉字，用到了DataTrigger。
[*]DataGrid的列可以自动生成，也可以手动创建，可以通过AutoGenerateColumns="False"来设置。
3. 普通绑定示例

普通绑定示例截图，如下所示：


 
DataGrid过滤

在DataGrid中，实现客户端过滤，且不需要重新初始化数据源，则需要用到CollectionViewSource。
1. 定义资源及绑定

将CollectionViewSource定义成一种资源，并将资源的Source属性绑定到数据源，再将DataGrid中的ItemSource绑定到此资源，然后就可以在过滤时对资源进行过滤。
定义资源如下所示：
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources>DataGrid绑定资源【语法：ItemsSource="{Binding Source={StaticResource cvStudents}}"】，如下所示：
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources>2. 过滤条件

在本示例中，以性别为过滤条件，当点击过滤条件时，触发过滤命令，如下所示：
<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources>当用户点击时，触发Command绑定的命令，如下所示：
private ICommand fiterSexCheckedCommand;

public ICommand FiterSexCheckedCommand
{
        get
        {
                if (fiterSexCheckedCommand == null)
                {
                        fiterSexCheckedCommand = new RelayCommand<object>(FilterSexChecked);
                }
                return fiterSexCheckedCommand;
        }
}

private void FilterSexChecked(object obj)
{
        if (this.dataGrid != null)
        {
                ICollectionView cvs = CollectionViewSource.GetDefaultView(this.dataGrid.ItemsSource);
                if (cvs != null && cvs.CanFilter)
                {
                        cvs.Filter = (object obj) =>
                        {
                                bool flag = true;
                                bool flag1 = true;
                                bool flag2 = true;
                                var student = obj as Student;
                                if (!FilterM.IsMaleChecked)
                                {
                                        flag1 = student.Sex != true;
                                }
                                if (!FilterM.IsFemaleChecked)
                                {
                                        flag2 = student.Sex != false;
                                }
                                flag = flag1 && flag2;
                                return flag;
                        };
                }
        }
}注意：通过CollectionViewSource.GetDefaultView(this.dataGrid.ItemsSource)方法获取具有过滤功能的CollectionView类对象，然后再对Filter进行委托即可。
其中FilterM是在ViewModel中声明的FilterConditionM类型的属性。
private FilterConditionM filterM;

public FilterConditionM FilterM
{
        get { return filterM; }
        set { SetProperty(ref filterM, value); }
} FilterConditionM是封装的过滤条件模型类， 如下所示：
namespace DemoDataGrid2.Models{<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources>public class FilterConditionM:ObservableObject<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources>{                private bool isMaleChecked;                public bool IsMaleChecked                {                        get { return isMaleChecked; }                        set { SetProperty(ref isMaleChecked , value); }                }<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources>private bool isFemaleChecked;<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources>public bool IsFemaleChecked<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources>{<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources>get { return isFemaleChecked; }<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources>set { SetProperty(ref isFemaleChecked, value); }<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources><Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources>}<Window.Resources>
    <CollectionViewSource x:Key="cvStudents" Source="{Binding Students}"></CollectionViewSource>
</Window.Resources>}}3. 过滤功能示例

具备过滤功能的示例截图，如下所示：


 
DataGrid分组

在WPF中，实现DataGrid的分组，也是通过CollectionViewSource来实现。
1. 设置分组列

有两种方式可以设置分组
1.1 XAML中设置

在XAML中，通过设置CollectionViewSource的GroupDescriptions属性，来设置具体分组的列属性，如下所示：
<CollectionViewSource x:Key="cvStudents" Source="{Binding Students}">
        <CollectionViewSource.GroupDescriptions>
                <PropertyGroupDescription PropertyName="Class"/>
                <PropertyGroupDescription PropertyName="Sex"/>
        </CollectionViewSource.GroupDescriptions>
</CollectionViewSource>1.2 后台代码设置

在ViewModel中设置CollectionView的GroupDescriptions属性，如下所示：
ICollectionView cvTasks = CollectionViewSource.GetDefaultView(this.dataGrid.ItemsSource);
if (cvTasks != null && cvTasks.CanGroup == true)
{
        cvTasks.GroupDescriptions.Clear();
        cvTasks.GroupDescriptions.Add(new PropertyGroupDescription("Class"));
        cvTasks.GroupDescriptions.Add(new PropertyGroupDescription("Sex"));
}2. 设置分组样式

在WPF中，通过设置DataGrid的GroupStyle属性来改变分组样式，如下所示：
<CollectionViewSource x:Key="cvStudents" Source="{Binding Students}">
        <CollectionViewSource.GroupDescriptions>
                <PropertyGroupDescription PropertyName="Class"/>
                <PropertyGroupDescription PropertyName="Sex"/>
        </CollectionViewSource.GroupDescriptions>
</CollectionViewSource><CollectionViewSource x:Key="cvStudents" Source="{Binding Students}">
        <CollectionViewSource.GroupDescriptions>
                <PropertyGroupDescription PropertyName="Class"/>
                <PropertyGroupDescription PropertyName="Sex"/>
        </CollectionViewSource.GroupDescriptions>
</CollectionViewSource><CollectionViewSource x:Key="cvStudents" Source="{Binding Students}">
        <CollectionViewSource.GroupDescriptions>
                <PropertyGroupDescription PropertyName="Class"/>
                <PropertyGroupDescription PropertyName="Sex"/>
        </CollectionViewSource.GroupDescriptions>
</CollectionViewSource><CollectionViewSource x:Key="cvStudents" Source="{Binding Students}">
        <CollectionViewSource.GroupDescriptions>
                <PropertyGroupDescription PropertyName="Class"/>
                <PropertyGroupDescription PropertyName="Sex"/>
        </CollectionViewSource.GroupDescriptions>
</CollectionViewSource><CollectionViewSource x:Key="cvStudents" Source="{Binding Students}">
        <CollectionViewSource.GroupDescriptions>
                <PropertyGroupDescription PropertyName="Class"/>
                <PropertyGroupDescription PropertyName="Sex"/>
        </CollectionViewSource.GroupDescriptions>
</CollectionViewSource><CollectionViewSource x:Key="cvStudents" Source="{Binding Students}">
        <CollectionViewSource.GroupDescriptions>
                <PropertyGroupDescription PropertyName="Class"/>
                <PropertyGroupDescription PropertyName="Sex"/>
        </CollectionViewSource.GroupDescriptions>
</CollectionViewSource><CollectionViewSource x:Key="cvStudents" Source="{Binding Students}">
        <CollectionViewSource.GroupDescriptions>
                <PropertyGroupDescription PropertyName="Class"/>
                <PropertyGroupDescription PropertyName="Sex"/>
        </CollectionViewSource.GroupDescriptions>
</CollectionViewSource><CollectionViewSource x:Key="cvStudents" Source="{Binding Students}">
        <CollectionViewSource.GroupDescriptions>
                <PropertyGroupDescription PropertyName="Class"/>
                <PropertyGroupDescription PropertyName="Sex"/>
        </CollectionViewSource.GroupDescriptions>
</CollectionViewSource><CollectionViewSource x:Key="cvStudents" Source="{Binding Students}">
        <CollectionViewSource.GroupDescriptions>
                <PropertyGroupDescription PropertyName="Class"/>
                <PropertyGroupDescription PropertyName="Sex"/>
        </CollectionViewSource.GroupDescriptions>
</CollectionViewSource><CollectionViewSource x:Key="cvStudents" Source="{Binding Students}">
        <CollectionViewSource.GroupDescriptions>
                <PropertyGroupDescription PropertyName="Class"/>
                <PropertyGroupDescription PropertyName="Sex"/>
        </CollectionViewSource.GroupDescriptions>
</CollectionViewSource><CollectionViewSource x:Key="cvStudents" Source="{Binding Students}">
        <CollectionViewSource.GroupDescriptions>
                <PropertyGroupDescription PropertyName="Class"/>
                <PropertyGroupDescription PropertyName="Sex"/>
        </CollectionViewSource.GroupDescriptions>
</CollectionViewSource><CollectionViewSource x:Key="cvStudents" Source="{Binding Students}">
        <CollectionViewSource.GroupDescriptions>
                <PropertyGroupDescription PropertyName="Class"/>
                <PropertyGroupDescription PropertyName="Sex"/>
        </CollectionViewSource.GroupDescriptions>
</CollectionViewSource><CollectionViewSource x:Key="cvStudents" Source="{Binding Students}">
        <CollectionViewSource.GroupDescriptions>
                <PropertyGroupDescription PropertyName="Class"/>
                <PropertyGroupDescription PropertyName="Sex"/>
        </CollectionViewSource.GroupDescriptions>
</CollectionViewSource><CollectionViewSource x:Key="cvStudents" Source="{Binding Students}">
        <CollectionViewSource.GroupDescriptions>
                <PropertyGroupDescription PropertyName="Class"/>
                <PropertyGroupDescription PropertyName="Sex"/>
        </CollectionViewSource.GroupDescriptions>
</CollectionViewSource><CollectionViewSource x:Key="cvStudents" Source="{Binding Students}">
        <CollectionViewSource.GroupDescriptions>
                <PropertyGroupDescription PropertyName="Class"/>
                <PropertyGroupDescription PropertyName="Sex"/>
        </CollectionViewSource.GroupDescriptions>
</CollectionViewSource><CollectionViewSource x:Key="cvStudents" Source="{Binding Students}">
        <CollectionViewSource.GroupDescriptions>
                <PropertyGroupDescription PropertyName="Class"/>
                <PropertyGroupDescription PropertyName="Sex"/>
        </CollectionViewSource.GroupDescriptions>
</CollectionViewSource><CollectionViewSource x:Key="cvStudents" Source="{Binding Students}">
        <CollectionViewSource.GroupDescriptions>
                <PropertyGroupDescription PropertyName="Class"/>
                <PropertyGroupDescription PropertyName="Sex"/>
        </CollectionViewSource.GroupDescriptions>
</CollectionViewSource><CollectionViewSource x:Key="cvStudents" Source="{Binding Students}">
        <CollectionViewSource.GroupDescriptions>
                <PropertyGroupDescription PropertyName="Class"/>
                <PropertyGroupDescription PropertyName="Sex"/>
        </CollectionViewSource.GroupDescriptions>
</CollectionViewSource><CollectionViewSource x:Key="cvStudents" Source="{Binding Students}">
        <CollectionViewSource.GroupDescriptions>
                <PropertyGroupDescription PropertyName="Class"/>
                <PropertyGroupDescription PropertyName="Sex"/>
        </CollectionViewSource.GroupDescriptions>
</CollectionViewSource><CollectionViewSource x:Key="cvStudents" Source="{Binding Students}">
        <CollectionViewSource.GroupDescriptions>
                <PropertyGroupDescription PropertyName="Class"/>
                <PropertyGroupDescription PropertyName="Sex"/>
        </CollectionViewSource.GroupDescriptions>
</CollectionViewSource><CollectionViewSource x:Key="cvStudents" Source="{Binding Students}">
        <CollectionViewSource.GroupDescriptions>
                <PropertyGroupDescription PropertyName="Class"/>
                <PropertyGroupDescription PropertyName="Sex"/>
        </CollectionViewSource.GroupDescriptions>
</CollectionViewSource><CollectionViewSource x:Key="cvStudents" Source="{Binding Students}">
        <CollectionViewSource.GroupDescriptions>
                <PropertyGroupDescription PropertyName="Class"/>
                <PropertyGroupDescription PropertyName="Sex"/>
        </CollectionViewSource.GroupDescriptions>
</CollectionViewSource><CollectionViewSource x:Key="cvStudents" Source="{Binding Students}">
        <CollectionViewSource.GroupDescriptions>
                <PropertyGroupDescription PropertyName="Class"/>
                <PropertyGroupDescription PropertyName="Sex"/>
        </CollectionViewSource.GroupDescriptions>
</CollectionViewSource><CollectionViewSource x:Key="cvStudents" Source="{Binding Students}">
        <CollectionViewSource.GroupDescriptions>
                <PropertyGroupDescription PropertyName="Class"/>
                <PropertyGroupDescription PropertyName="Sex"/>
        </CollectionViewSource.GroupDescriptions>
</CollectionViewSource>         
DataGrid排序

在WPF中，实现DataGrid的排序，也是通过CollectionViewSource来实现。
1. 设置排序列

有两种方式可以设置DataGrid排序列，如下所示：
1.1 XAML中设置

通过设置CollectionViewSource的SortDescriptions属性，设置排序列和排序方向。如下所示：
<CollectionViewSource x:Key="cvStudents" Source="{Binding Students}">
        <CollectionViewSource.GroupDescriptions>
                <PropertyGroupDescription PropertyName="Class"/>
                <PropertyGroupDescription PropertyName="Sex"/>
        </CollectionViewSource.GroupDescriptions>
</CollectionViewSource> 其中scm是新定义的命名空间【xmlns:scm="clr-namespace:System.ComponentModel;assembly=WindowsBase"】
 
1.2 后台代码设置

在ViewModel中通过后台代码设置，同样也需要引入对应的命名空间，如下所示：
ICollectionView cvTasks = CollectionViewSource.GetDefaultView(this.dataGrid.ItemsSource);
if (cvTasks != null && cvTasks.CanSort == true)
{
        cvTasks.SortDescriptions.Clear();
        cvTasks.SortDescriptions.Add(new SortDescription("No", ListSortDirection.Ascending));
        cvTasks.SortDescriptions.Add(new SortDescription("Age", ListSortDirection.Ascending));
}DataGrid整体示例

具备过滤，分组，排序的示例截图，如下所示：


参考文献

1. 官方文档：https://learn.microsoft.com/zh-cn/dotnet/desktop/wpf/controls/how-to-group-sort-and-filter-data-in-the-datagrid-control?view=netframeworkdesktop-4.8
 
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来源:https://www.cnblogs.com/hsiang/archive/2023/12/22/17920372.html
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