使WPF ListView / GridView在列标题单击时排序的最佳方法?


84

互联网上有许多解决方案,试图弥补WPF似乎很基础的遗漏。对于“最佳”方式,我确实感到困惑。例如...我希望列标题中有向上/向下的小箭头,以指示排序方向。显然,有3种不同的方法可以执行此操作,有些使用代码,某些使用标记,某些使用标记加代码,而所有这些似乎都像是黑客。

有没有人遇到过这个问题,找到了他们完全满意的解决方案?WPF缺少这样一个基本的WinForms功能似乎很奇怪,需要加以破解。


回答以上有关如何识别util的问题。将xmlns:util =“ clr-namespace:Wpf.Util”添加到xaml文档顶部的名称空间
meldo 2011年

如果可能的话..使用DataGrid。
Abhijeet Nagre

Answers:



111

我编写了一组附加属性来对a进行自动排序GridView,您可以在此处进行检查。它不处理上/下箭头,但可以轻松添加。

<ListView ItemsSource="{Binding Persons}"
          IsSynchronizedWithCurrentItem="True"
          util:GridViewSort.AutoSort="True">
    <ListView.View>
        <GridView>
            <GridView.Columns>
                <GridViewColumn Header="Name"
                                DisplayMemberBinding="{Binding Name}"
                                util:GridViewSort.PropertyName="Name"/>
                <GridViewColumn Header="First name"
                                DisplayMemberBinding="{Binding FirstName}"
                                util:GridViewSort.PropertyName="FirstName"/>
                <GridViewColumn Header="Date of birth"
                                DisplayMemberBinding="{Binding DateOfBirth}"
                                util:GridViewSort.PropertyName="DateOfBirth"/>
            </GridView.Columns>
        </GridView>
    </ListView.View>
</ListView>

8
谢谢托马斯,您对排序问题的解决方案优雅,易于使用且非常灵活。换句话说:完美!其他提示:1)使用Thomas文章中链接到的更新版本,以及2)在注释中使用Alex的漂亮字形版本。
Helge Klein

实用的L先生!
蓝精灵地铁网站

我是WPF的新手,对这个“ util”有点不太了解。那是什么参考?编辑:nm ...有一个名为“查看源代码”的小小链接,它并没有立即跳到我身边。这扩展了该类的源代码
oscilatingcretin

我非常喜欢!我正在动态添加/删除项目,这在不更改顺序的情况下效果很好。但是如何设置排序的初始状态?CollectionViewSource.GetDefaultView(MyList.ItemsSource).SortDescriptions.Add(new SortDescription("Number", ListSortDirection.Ascending));不起作用。
zee

@zee,它应该可以工作,但是不会显示排序标志符号……我还没有实现设置初始顺序的方法,但是您可以随时尝试修改我的代码;)
Thomas Levesque

23

MSDN提供了一种简单的方法来对带有上/下字形的列进行排序。但是,该示例并不完整-他们没有解释如何使用字形的数据模板。以下是我要使用ListView进行的工作。这适用于.Net 4。

在ListView中,您必须指定一个事件处理程序,以触发对GridViewColumnHeader的单击。我的ListView看起来像这样:

<ListView Name="results" GridViewColumnHeader.Click="results_Click">
    <ListView.View>
        <GridView>
            <GridViewColumn DisplayMemberBinding="{Binding Path=ContactName}">
                <GridViewColumn.Header>
                    <GridViewColumnHeader Content="Contact Name" Padding="5,0,0,0" HorizontalContentAlignment="Left" MinWidth="150" Name="ContactName" />
                </GridViewColumn.Header>
            </GridViewColumn>
            <GridViewColumn DisplayMemberBinding="{Binding Path=PrimaryPhone}">
                <GridViewColumn.Header>
                    <GridViewColumnHeader Content="Contact Number" Padding="5,0,0,0" HorizontalContentAlignment="Left" MinWidth="150" Name="PrimaryPhone"/>
                </GridViewColumn.Header>
            </GridViewColumn>
        </GridView>
    </ListView.View>
</ListView>

在后面的代码中,设置代码以处理排序:

// Global objects
BindingListCollectionView blcv;
GridViewColumnHeader _lastHeaderClicked = null;
ListSortDirection _lastDirection = ListSortDirection.Ascending;

// Header click event
void results_Click(object sender, RoutedEventArgs e)
{
    GridViewColumnHeader headerClicked =
    e.OriginalSource as GridViewColumnHeader;
    ListSortDirection direction;

    if (headerClicked != null)
    {
    if (headerClicked.Role != GridViewColumnHeaderRole.Padding)
    {
        if (headerClicked != _lastHeaderClicked)
        {
            direction = ListSortDirection.Ascending;
        }
        else
        {
            if (_lastDirection == ListSortDirection.Ascending)
            {
                direction = ListSortDirection.Descending;
            }
            else
            {
                direction = ListSortDirection.Ascending;
            }
        }

        string header = headerClicked.Column.Header as string;
        Sort(header, direction);

        if (direction == ListSortDirection.Ascending)
        {
            headerClicked.Column.HeaderTemplate =
              Resources["HeaderTemplateArrowUp"] as DataTemplate;
        }
        else
        {
            headerClicked.Column.HeaderTemplate =
              Resources["HeaderTemplateArrowDown"] as DataTemplate;
        }

        // Remove arrow from previously sorted header
        if (_lastHeaderClicked != null && _lastHeaderClicked != headerClicked)
        {
            _lastHeaderClicked.Column.HeaderTemplate = null;
        }

        _lastHeaderClicked = headerClicked;
        _lastDirection = direction;
    }
}

// Sort code
private void Sort(string sortBy, ListSortDirection direction)
{
    blcv.SortDescriptions.Clear();
    SortDescription sd = new SortDescription(sortBy, direction);
    blcv.SortDescriptions.Add(sd);
    blcv.Refresh();
}

然后在XAML中,需要添加在排序方法中指定的两个DataTemplates:

<DataTemplate x:Key="HeaderTemplateArrowUp">
    <DockPanel LastChildFill="True" Width="{Binding ActualWidth, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type GridViewColumnHeader}}}">
        <Path x:Name="arrowUp" StrokeThickness="1" Fill="Gray" Data="M 5,10 L 15,10 L 10,5 L 5,10" DockPanel.Dock="Right" Width="20" HorizontalAlignment="Right" Margin="5,0,5,0" SnapsToDevicePixels="True"/>
        <TextBlock Text="{Binding }" />
    </DockPanel>
</DataTemplate>

<DataTemplate x:Key="HeaderTemplateArrowDown">
    <DockPanel LastChildFill="True" Width="{Binding ActualWidth, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type GridViewColumnHeader}}}">
        <Path x:Name="arrowDown" StrokeThickness="1" Fill="Gray"  Data="M 5,5 L 10,10 L 15,5 L 5,5" DockPanel.Dock="Right" Width="20" HorizontalAlignment="Right" Margin="5,0,5,0" SnapsToDevicePixels="True"/>
        <TextBlock Text="{Binding }" />
    </DockPanel>
</DataTemplate>

DockPanelwithLastChildFill设置为true可以将字形保留在标题的右侧,并让标签填充其余的空间。我将DockPanel宽度限制为的ActualWidthGridViewColumnHeader因为我的列没有宽度,这使它们可以自动适应内容。但是,我确实MinWidth在列上设置了s,以便该字形不会掩盖列标题。将TextBlock Text设置为空绑定,该绑定显示标题中指定的列名。


1
这没有指定在XAML中将DataTemplates Grid.Resources放置在何处?

4
@Mark这可能为时已晚,无法为您提供帮助,但应将模板放在根元素的“资源”中,通常为<Window.Resources><UserControl.Resources>。HTHS;)
CptRobby 2013年

1
@CptRobby嗨..对我来说,由于blcv尚未初始化,因此提供了空引用异常...那么,这段代码对任何人都有效吗?
Jay Nirgudkar

@JayNirgudkar我不是这个的作者,Jared Harley是。但是我可以告诉你,blcv是他用作ListView的ItemsSource的东西。您不必做同样的事情。单击他提供的MSDN链接,以使用其他方式处理ItemsSource。
CptRobby 2015年

2
MSDN示例假定headerClicked.Column.Header(是标题文本)与(headerClicked.Column.DisplayMemberBinding as Binding).Path.Path(是绑定路径)等效。无法对标题文本进行排序。很奇怪。
克里斯

5

我使用MVVM,因此我以Thomas为参考创建了自己的一些附加属性。单击标题时,它确实一次对一列进行排序,在升序和降序之间切换。它从一开始就使用第一列进行排序。它显示了Win7 / 8样式的字形。

通常,您要做的就是将main属性设置为true(但必须显式声明GridViewColumnHeaders):

<Window xmlns:local="clr-namespace:MyProjectNamespace">
  <Grid>
    <ListView local:App.EnableGridViewSort="True" ItemsSource="{Binding LVItems}">
      <ListView.View>
        <GridView>
          <GridViewColumn DisplayMemberBinding="{Binding Property1}">
            <GridViewColumnHeader Content="Prop 1" />
          </GridViewColumn>
          <GridViewColumn DisplayMemberBinding="{Binding Property2}">
            <GridViewColumnHeader Content="Prop 2" />
          </GridViewColumn>
        </GridView>
      </ListView.View>
    </ListView>
  </Grid>
<Window>

如果要对显示内容以外的其他属性进行排序,则必须声明以下内容:

<GridViewColumn DisplayMemberBinding="{Binding Property3}"
                local:App.GridViewSortPropertyName="Property4">
    <GridViewColumnHeader Content="Prop 3" />
</GridViewColumn>

这是附加属性的代码,我喜欢懒惰并将它们放在提供的App.xaml.cs中:

using System;
using System.ComponentModel;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data.
using System.Windows.Media;
using System.Windows.Media.Media3D;

namespace MyProjectNamespace
{
  public partial class App : Application
  {
      #region GridViewSort
      public static DependencyProperty GridViewSortPropertyNameProperty =
          DependencyProperty.RegisterAttached(
              "GridViewSortPropertyName", 
              typeof(string), 
              typeof(App), 
              new UIPropertyMetadata(null)
          );

      public static string GetGridViewSortPropertyName(GridViewColumn gvc)
      {
          return (string)gvc.GetValue(GridViewSortPropertyNameProperty);
      }

      public static void SetGridViewSortPropertyName(GridViewColumn gvc, string n)
      {
          gvc.SetValue(GridViewSortPropertyNameProperty, n);
      }

      public static DependencyProperty CurrentSortColumnProperty =
          DependencyProperty.RegisterAttached(
              "CurrentSortColumn", 
              typeof(GridViewColumn), 
              typeof(App), 
              new UIPropertyMetadata(
                  null, 
                  new PropertyChangedCallback(CurrentSortColumnChanged)
              )
          );

      public static GridViewColumn GetCurrentSortColumn(GridView gv)
      {
          return (GridViewColumn)gv.GetValue(CurrentSortColumnProperty);
      }

      public static void SetCurrentSortColumn(GridView gv, GridViewColumn value)
      {
          gv.SetValue(CurrentSortColumnProperty, value);
      }

      public static void CurrentSortColumnChanged(
          object sender, DependencyPropertyChangedEventArgs e)
      {
          GridViewColumn gvcOld = e.OldValue as GridViewColumn;
          if (gvcOld != null)
          {
              CurrentSortColumnSetGlyph(gvcOld, null);
          }
      }

      public static void CurrentSortColumnSetGlyph(GridViewColumn gvc, ListView lv)
      {
          ListSortDirection lsd;
          Brush brush;
          if (lv == null)
          {
              lsd = ListSortDirection.Ascending;
              brush = Brushes.Transparent;
          }
          else
          {
              SortDescriptionCollection sdc = lv.Items.SortDescriptions;
              if (sdc == null || sdc.Count < 1) return;
              lsd = sdc[0].Direction;
              brush = Brushes.Gray;
          }

          FrameworkElementFactory fefGlyph = 
              new FrameworkElementFactory(typeof(Path));
          fefGlyph.Name = "arrow";
          fefGlyph.SetValue(Path.StrokeThicknessProperty, 1.0);
          fefGlyph.SetValue(Path.FillProperty, brush);
          fefGlyph.SetValue(StackPanel.HorizontalAlignmentProperty, 
              HorizontalAlignment.Center);

          int s = 4;
          if (lsd == ListSortDirection.Ascending)
          {
              PathFigure pf = new PathFigure();
              pf.IsClosed = true;
              pf.StartPoint = new Point(0, s);
              pf.Segments.Add(new LineSegment(new Point(s * 2, s), false));
              pf.Segments.Add(new LineSegment(new Point(s, 0), false));

              PathGeometry pg = new PathGeometry();
              pg.Figures.Add(pf);

              fefGlyph.SetValue(Path.DataProperty, pg);
          }
          else
          {
              PathFigure pf = new PathFigure();
              pf.IsClosed = true;
              pf.StartPoint = new Point(0, 0);
              pf.Segments.Add(new LineSegment(new Point(s, s), false));
              pf.Segments.Add(new LineSegment(new Point(s * 2, 0), false));

              PathGeometry pg = new PathGeometry();
              pg.Figures.Add(pf);

              fefGlyph.SetValue(Path.DataProperty, pg);
          }

          FrameworkElementFactory fefTextBlock = 
              new FrameworkElementFactory(typeof(TextBlock));
          fefTextBlock.SetValue(TextBlock.HorizontalAlignmentProperty,
              HorizontalAlignment.Center);
          fefTextBlock.SetValue(TextBlock.TextProperty, new Binding());

          FrameworkElementFactory fefDockPanel = 
              new FrameworkElementFactory(typeof(StackPanel));
          fefDockPanel.SetValue(StackPanel.OrientationProperty,
              Orientation.Vertical);
          fefDockPanel.AppendChild(fefGlyph);
          fefDockPanel.AppendChild(fefTextBlock);

          DataTemplate dt = new DataTemplate(typeof(GridViewColumn));
          dt.VisualTree = fefDockPanel;

          gvc.HeaderTemplate = dt;
      }

      public static DependencyProperty EnableGridViewSortProperty =
          DependencyProperty.RegisterAttached(
              "EnableGridViewSort", 
              typeof(bool), 
              typeof(App), 
              new UIPropertyMetadata(
                  false, 
                  new PropertyChangedCallback(EnableGridViewSortChanged)
              )
          );

      public static bool GetEnableGridViewSort(ListView lv)
      {
          return (bool)lv.GetValue(EnableGridViewSortProperty);
      }

      public static void SetEnableGridViewSort(ListView lv, bool value)
      {
          lv.SetValue(EnableGridViewSortProperty, value);
      }

      public static void EnableGridViewSortChanged(
          object sender, DependencyPropertyChangedEventArgs e)
      {
          ListView lv = sender as ListView;
          if (lv == null) return;

          if (!(e.NewValue is bool)) return;
          bool enableGridViewSort = (bool)e.NewValue;

          if (enableGridViewSort)
          {
              lv.AddHandler(
                  GridViewColumnHeader.ClickEvent,
                  new RoutedEventHandler(EnableGridViewSortGVHClicked)
              );
              if (lv.View == null)
              {
                  lv.Loaded += new RoutedEventHandler(EnableGridViewSortLVLoaded);
              }
              else
              {
                  EnableGridViewSortLVInitialize(lv);
              }
          }
          else
          {
              lv.RemoveHandler(
                  GridViewColumnHeader.ClickEvent,
                  new RoutedEventHandler(EnableGridViewSortGVHClicked)
              );
          }
      }

      public static void EnableGridViewSortLVLoaded(object sender, RoutedEventArgs e)
      {
          ListView lv = e.Source as ListView;
          EnableGridViewSortLVInitialize(lv);
          lv.Loaded -= new RoutedEventHandler(EnableGridViewSortLVLoaded);
      }

      public static void EnableGridViewSortLVInitialize(ListView lv)
      {
          GridView gv = lv.View as GridView;
          if (gv == null) return;

          bool first = true;
          foreach (GridViewColumn gvc in gv.Columns)
          {
              if (first)
              {
                  EnableGridViewSortApplySort(lv, gv, gvc);
                  first = false;
              }
              else
              {
                  CurrentSortColumnSetGlyph(gvc, null);
              }
          }
      }

      public static void EnableGridViewSortGVHClicked(
          object sender, RoutedEventArgs e)
      {
          GridViewColumnHeader gvch = e.OriginalSource as GridViewColumnHeader;
          if (gvch == null) return;
          GridViewColumn gvc = gvch.Column;
          if(gvc == null) return;            
          ListView lv = VisualUpwardSearch<ListView>(gvch);
          if (lv == null) return;
          GridView gv = lv.View as GridView;
          if (gv == null) return;

          EnableGridViewSortApplySort(lv, gv, gvc);
      }

      public static void EnableGridViewSortApplySort(
          ListView lv, GridView gv, GridViewColumn gvc)
      {
          bool isEnabled = GetEnableGridViewSort(lv);
          if (!isEnabled) return;

          string propertyName = GetGridViewSortPropertyName(gvc);
          if (string.IsNullOrEmpty(propertyName))
          {
              Binding b = gvc.DisplayMemberBinding as Binding;
              if (b != null && b.Path != null)
              {
                  propertyName = b.Path.Path;
              }

              if (string.IsNullOrEmpty(propertyName)) return;
          }

          ApplySort(lv.Items, propertyName);
          SetCurrentSortColumn(gv, gvc);
          CurrentSortColumnSetGlyph(gvc, lv);
      }

      public static void ApplySort(ICollectionView view, string propertyName)
      {
          if (string.IsNullOrEmpty(propertyName)) return;

          ListSortDirection lsd = ListSortDirection.Ascending;
          if (view.SortDescriptions.Count > 0)
          {
              SortDescription sd = view.SortDescriptions[0];
              if (sd.PropertyName.Equals(propertyName))
              {
                  if (sd.Direction == ListSortDirection.Ascending)
                  {
                      lsd = ListSortDirection.Descending;
                  }
                  else
                  {
                      lsd = ListSortDirection.Ascending;
                  }
              }
              view.SortDescriptions.Clear();
          }

          view.SortDescriptions.Add(new SortDescription(propertyName, lsd));
      }
      #endregion

      public static T VisualUpwardSearch<T>(DependencyObject source) 
          where T : DependencyObject
      {
          return VisualUpwardSearch(source, x => x is T) as T;
      }

      public static DependencyObject VisualUpwardSearch(
                          DependencyObject source, Predicate<DependencyObject> match)
      {
          DependencyObject returnVal = source;

          while (returnVal != null && !match(returnVal))
          {
              DependencyObject tempReturnVal = null;
              if (returnVal is Visual || returnVal is Visual3D)
              {
                  tempReturnVal = VisualTreeHelper.GetParent(returnVal);
              }
              if (tempReturnVal == null)
              {
                  returnVal = LogicalTreeHelper.GetParent(returnVal);
              }
              else
              {
                  returnVal = tempReturnVal;
              }
          }

          return returnVal;
      }
  }
}

3

我对Microsoft的方式进行了改编,在其中我重写了ListView控件以使SortableListView

public partial class SortableListView : ListView
    {        
        private GridViewColumnHeader lastHeaderClicked = null;
        private ListSortDirection lastDirection = ListSortDirection.Ascending;       

        public void GridViewColumnHeaderClicked(GridViewColumnHeader clickedHeader)
        {
            ListSortDirection direction;

            if (clickedHeader != null)
            {
                if (clickedHeader.Role != GridViewColumnHeaderRole.Padding)
                {
                    if (clickedHeader != lastHeaderClicked)
                    {
                        direction = ListSortDirection.Ascending;
                    }
                    else
                    {
                        if (lastDirection == ListSortDirection.Ascending)
                        {
                            direction = ListSortDirection.Descending;
                        }
                        else
                        {
                            direction = ListSortDirection.Ascending;
                        }
                    }

                    string sortString = ((Binding)clickedHeader.Column.DisplayMemberBinding).Path.Path;

                    Sort(sortString, direction);

                    lastHeaderClicked = clickedHeader;
                    lastDirection = direction;
                }
            }
        }

        private void Sort(string sortBy, ListSortDirection direction)
        {
            ICollectionView dataView = CollectionViewSource.GetDefaultView(this.ItemsSource != null ? this.ItemsSource : this.Items);

            dataView.SortDescriptions.Clear();
            SortDescription sD = new SortDescription(sortBy, direction);
            dataView.SortDescriptions.Add(sD);
            dataView.Refresh();
        }
    }

该行((Binding)clickedHeader.Column.DisplayMemberBinding).Path.Path位用于处理列名与其绑定路径不同的情况,而Microsoft方法则不行。

我想拦截GridViewColumnHeader.Click事件,这样我就不必再考虑了,但我找不到解决方法。结果,我在XAML中为以下各项添加了以下内容SortableListView

GridViewColumnHeader.Click="SortableListViewColumnHeaderClicked"

然后在Window包含任何数量SortableListViews的任何对象上,只需添加以下代码:

private void SortableListViewColumnHeaderClicked(object sender, RoutedEventArgs e)
        {
            ((Controls.SortableListView)sender).GridViewColumnHeaderClicked(e.OriginalSource as GridViewColumnHeader);
        }

哪里Controls是您在其中进行SortableListView控件的名称空间的XAML ID 。

因此,这确实防止了排序方面的代码重复,您只需要记住要像上面那样处理该事件即可。


1
我从您的解决方案中汲取了灵感,走了同样的路,访问GridViewColumnHeader.Click事件,您可以在构造函数中添加处理程序。this.AddHandler(GridViewColumnHeader.ClickEvent,new RoutedEventHandler(GridViewColumnHeaderClicked));
德里克·穆勒

3

如果您拥有一个列表视图并将其转换为一个网格视图,则可以轻松地使您的网格视图列标题可单击。

        <Style TargetType="GridViewColumnHeader">
            <Setter Property="Command" Value="{Binding CommandOrderBy}"/>
            <Setter Property="CommandParameter" Value="{Binding RelativeSource={RelativeSource Self},Path=Content}"/>
        </Style>

然后只需在代码中设置一个委托命令即可。

    public DelegateCommand CommandOrderBy { get { return new DelegateCommand(Delegated_CommandOrderBy); } }

    private void Delegated_CommandOrderBy(object obj)
    {
        throw new NotImplementedException();
    }

我要假设大家都知道如何在这里制作ICommand DelegateCommand。这使我可以在ViewModel中保留所有View。

我仅添加了此内容,以便有多种方法可以完成同一件事。我没有编写用于在标题中添加箭头按钮的代码,但这将以XAML样式完成,您将需要重新设计JanDotNet在其代码中具有的整个标题。


0

该解决方案总结了现有答案和注释的所有工作部分,包括列标题模板:

视图:

<ListView x:Class="MyNamspace.MyListView"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
             mc:Ignorable="d" 
             d:DesignHeight="300" d:DesignWidth="300"
             ItemsSource="{Binding Items}"
             GridViewColumnHeader.Click="ListViewColumnHeaderClick">
    <ListView.Resources>

        <Style TargetType="Grid" x:Key="HeaderGridStyle">
            <Setter Property="Height" Value="20" />
        </Style>

        <Style TargetType="TextBlock" x:Key="HeaderTextBlockStyle">
            <Setter Property="Margin" Value="5,0,0,0" />
            <Setter Property="VerticalAlignment" Value="Center" />
        </Style>

        <Style TargetType="Path" x:Key="HeaderPathStyle">
            <Setter Property="StrokeThickness" Value="1" />
            <Setter Property="Fill" Value="Gray" />
            <Setter Property="Width" Value="20" />
            <Setter Property="HorizontalAlignment" Value="Center" />
            <Setter Property="Margin" Value="5,0,5,0" />
            <Setter Property="SnapsToDevicePixels" Value="True" />
        </Style>

        <DataTemplate x:Key="HeaderTemplateDefault">
            <Grid Style="{StaticResource HeaderGridStyle}">
                <TextBlock Text="{Binding }" Style="{StaticResource HeaderTextBlockStyle}" />
            </Grid>
        </DataTemplate>

        <DataTemplate x:Key="HeaderTemplateArrowUp">
            <Grid Style="{StaticResource HeaderGridStyle}">
                <Path Data="M 7,3 L 13,3 L 10,0 L 7,3" Style="{StaticResource HeaderPathStyle}" />
                <TextBlock Text="{Binding }" Style="{StaticResource HeaderTextBlockStyle}" />
            </Grid>
        </DataTemplate>

        <DataTemplate x:Key="HeaderTemplateArrowDown">
            <Grid Style="{StaticResource HeaderGridStyle}">
                <Path Data="M 7,0 L 10,3 L 13,0 L 7,0"  Style="{StaticResource HeaderPathStyle}" />
                <TextBlock Text="{Binding }" Style="{StaticResource HeaderTextBlockStyle}" />
            </Grid>
        </DataTemplate>

    </ListView.Resources>

    <ListView.View>
        <GridView ColumnHeaderTemplate="{StaticResource HeaderTemplateDefault}">

            <GridViewColumn Header="Name" DisplayMemberBinding="{Binding NameProperty}" />
            <GridViewColumn Header="Type" Width="45" DisplayMemberBinding="{Binding TypeProperty}"/>

            <!-- ... -->

        </GridView>
    </ListView.View>
</ListView>

后台代码:

public partial class MyListView : ListView
{
    GridViewColumnHeader _lastHeaderClicked = null;

    public MyListView()
    {
        InitializeComponent();
    }

    private void ListViewColumnHeaderClick(object sender, RoutedEventArgs e)
    {
        GridViewColumnHeader headerClicked = e.OriginalSource as GridViewColumnHeader;

        if (headerClicked == null)
            return;

        if (headerClicked.Role == GridViewColumnHeaderRole.Padding)
            return;

        var sortingColumn = (headerClicked.Column.DisplayMemberBinding as Binding)?.Path?.Path;
        if (sortingColumn == null)
            return;

        var direction = ApplySort(Items, sortingColumn);

        if (direction == ListSortDirection.Ascending)
        {
            headerClicked.Column.HeaderTemplate =
                Resources["HeaderTemplateArrowUp"] as DataTemplate;
        }
        else
        {
            headerClicked.Column.HeaderTemplate =
                Resources["HeaderTemplateArrowDown"] as DataTemplate;
        }

        // Remove arrow from previously sorted header
        if (_lastHeaderClicked != null && _lastHeaderClicked != headerClicked)
        {
            _lastHeaderClicked.Column.HeaderTemplate =
                Resources["HeaderTemplateDefault"] as DataTemplate;
        }

        _lastHeaderClicked = headerClicked;
    }


    public static ListSortDirection ApplySort(ICollectionView view, string propertyName)
    {
        ListSortDirection direction = ListSortDirection.Ascending;
        if (view.SortDescriptions.Count > 0)
        {
            SortDescription currentSort = view.SortDescriptions[0];
            if (currentSort.PropertyName == propertyName)
            {
                if (currentSort.Direction == ListSortDirection.Ascending)
                    direction = ListSortDirection.Descending;
                else
                    direction = ListSortDirection.Ascending;
            }
            view.SortDescriptions.Clear();
        }
        if (!string.IsNullOrEmpty(propertyName))
        {
            view.SortDescriptions.Add(new SortDescription(propertyName, direction));
        }
        return direction;
    }
}

1
如果您不解释它们的作用,抛出数百行代码就没有任何意义
schizoid04 '18年

0

只是想添加其他人可以对WPF ListView进行排序的简单方法

void SortListView(ListView listView)
{
    IEnumerable listView_items = listView.Items.SourceCollection;
    List<MY_ITEM_CLASS> listView_items_to_list = listView_items.Cast<MY_ITEM_CLASS>().ToList();

    Comparer<MY_ITEM_CLASS> scoreComparer = Comparer<MY_ITEM_CLASS>.Create((first, second) => first.COLUMN_NAME.CompareTo(second.COLUMN_NAME));

    listView_items_to_list.Sort(scoreComparer);
    listView.ItemsSource = null;
    listView.Items.Clear();
    listView.ItemsSource = listView_items_to_list;
}

0

经过大量搜索,最终我发现这里很简单https://www.wpf-tutorial.com/listview-control/listview-how-to-column-sorting/

private GridViewColumnHeader listViewSortCol = null;
private SortAdorner listViewSortAdorner = null;
private void GridViewColumnHeader_Click(object sender, RoutedEventArgs e)
{
  GridViewColumnHeader column = (sender as GridViewColumnHeader);
  string sortBy = column.Tag.ToString();
  if (listViewSortCol != null)
  {
    AdornerLayer.GetAdornerLayer(listViewSortCol).Remove(listViewSortAdorner);
    yourListView.Items.SortDescriptions.Clear();
  }

  ListSortDirection newDir = ListSortDirection.Ascending;
  if (listViewSortCol == column && listViewSortAdorner.Direction == newDir)
    newDir = ListSortDirection.Descending;

  listViewSortCol = column;
  listViewSortAdorner = new SortAdorner(listViewSortCol, newDir);
  AdornerLayer.GetAdornerLayer(listViewSortCol).Add(listViewSortAdorner);
  yourListView.Items.SortDescriptions.Add(new SortDescription(sortBy, newDir));
}

类:

public class SortAdorner : Adorner
{
    private static Geometry ascGeometry =
        Geometry.Parse("M 0 4 L 3.5 0 L 7 4 Z");

    private static Geometry descGeometry =
        Geometry.Parse("M 0 0 L 3.5 4 L 7 0 Z");

    public ListSortDirection Direction { get; private set; }

    public SortAdorner(UIElement element, ListSortDirection dir)
        : base(element)
    {
        this.Direction = dir;
    }

    protected override void OnRender(DrawingContext drawingContext)
    {
        base.OnRender(drawingContext);

        if(AdornedElement.RenderSize.Width < 20)
            return;

        TranslateTransform transform = new TranslateTransform
            (
                AdornedElement.RenderSize.Width - 15,
                (AdornedElement.RenderSize.Height - 5) / 2
            );
        drawingContext.PushTransform(transform);

        Geometry geometry = ascGeometry;
        if(this.Direction == ListSortDirection.Descending)
            geometry = descGeometry;
        drawingContext.DrawGeometry(Brushes.Black, null, geometry);

        drawingContext.Pop();
    }
}

Xaml

<GridViewColumn Width="250">
  <GridViewColumn.Header>
    <GridViewColumnHeader Tag="Name" Click="GridViewColumnHeader_Click">Name</GridViewColumnHeader>
  </GridViewColumn.Header>
  <GridViewColumn.CellTemplate>
    <DataTemplate>
        <TextBlock Text="{Binding Name}" ToolTip="{Binding Name}"/>
    </DataTemplate>
  </GridViewColumn.CellTemplate>
</GridViewColumn>

1
谢谢。为了加分,您还可以添加说明摘要吗?当前这是仅链接和代码的(这已经比仅链接的更好...)。
云诺许

-2

试试这个:

using System.ComponentModel;
youtItemsControl.Items.SortDescriptions.Add(new SortDescription("yourFavoritePropertyFromItem",ListSortDirection.Ascending);
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