WPF获取GridView列中文本框的绑定值

Question

我正在实现一个函数，按列值对ListView中的项进行排序。

这是我的XAML代码：

<ListView x:Name="ListView4" SelectedItem="{Binding SelectedRepere}" ItemsSource="{Binding ListeDesReperes}"  Grid.Row="1" Grid.Column="0" Grid.ColumnSpan="4" MouseDoubleClick="ListView_MouseDoubleClick" GridViewColumnHeader.Click="GridViewColumnHeaderClickedHandler" ContextMenuOpening="ListView4_ContextMenuOpening" SelectionChanged="ListView4_SelectionChanged" Visibility="{Binding Grid4Visible, Converter={StaticResource BoolToVisConverter}}" >
<ListView.ContextMenu>
<ContextMenu x:Name="Context4">
<MenuItem x:Name="Context4MakeLonger" Header="{x:Static p:Resources.MakeLonger}" Click="Make_Longer"/>
<MenuItem x:Name="Context4Search" Header="{x:Static p:Resources.Search}" Click="Search_Detail"/>
</ContextMenu>
</ListView.ContextMenu>
<ListView.View>
<GridView AllowsColumnReorder="true" x:Name="GridView4">
<GridViewColumn DisplayMemberBinding="{Binding Path=ID}" Header="ID" Width="50"/>
<GridViewColumn DisplayMemberBinding= "{Binding Path=Name}" Header="{x:Static p:Resources.Nom}" Width="200">
</GridViewColumn>
<GridViewColumn Header="{x:Static p:Resources.QuantiteUnit}" Width="100">
<GridViewColumn.CellTemplate>
<DataTemplate>
<Grid>
<TextBlock Text="{Binding Path=Quantite}" TextAlignment="Right"/>
</Grid>
</DataTemplate>
</GridViewColumn.CellTemplate>
</GridViewColumn>
<GridViewColumn Header="{x:Static p:Resources.QuantiteTot}" Width="100">
<GridViewColumn.CellTemplate>
<DataTemplate>
<Grid>
<TextBlock Text="{Binding Path=TotalQuantity}" TextAlignment="Right"/>
</Grid>
</DataTemplate>
</GridViewColumn.CellTemplate>
</GridViewColumn>
<GridViewColumn DisplayMemberBinding="{Binding Path=Profil}" Header="{x:Static p:Resources.Profil}" Width="100"/>
<GridViewColumn DisplayMemberBinding="{Binding Path=Priorite}" Header="{x:Static p:Resources.Priorite}" Width="100"/>
<GridViewColumn DisplayMemberBinding="{Binding Path=Matiere}" Header="{x:Static p:Resources.Matiere}" Width="100"/>
<GridViewColumn DisplayMemberBinding="{Binding Path=GroupeProfil}" Header="{x:Static p:Resources.GroupeProfil}" Width="100"/>
<GridViewColumn DisplayMemberBinding="{Binding Path=Longueur}" Header="{x:Static p:Resources.Longueur}" Width="100">
<GridViewColumn.CellTemplate>
<DataTemplate>
<Grid>
<TextBlock Text="{Binding Path=Longueur, StringFormat={}{0:#000}}" TextAlignment="Right"/>
</Grid>
</DataTemplate>
</GridViewColumn.CellTemplate>
</GridViewColumn>
<GridViewColumn Header="{x:Static p:Resources.Weight}" Width="70">
<GridViewColumn.CellTemplate>
<DataTemplate>
<Grid>
<TextBlock Text="{Binding Path=Poids, StringFormat=N2}" TextAlignment="Right"/>
</Grid>
</DataTemplate>
</GridViewColumn.CellTemplate>
</GridViewColumn>
<GridViewColumn Width="140" Header="{x:Static p:Resources.Avancement}">
<GridViewColumn.CellTemplate>
<DataTemplate>
<Rectangle Name="PART_Track"  Height="20" Stroke="black" StrokeThickness="1" Fill="{Binding RectangleProgression}" Tag="{Binding Name}" MouseMove="mouseOverProgression">
<Rectangle.ToolTip>
<StackPanel>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition/>
<ColumnDefinition Width="10"/>
<ColumnDefinition/>
</Grid.ColumnDefinitions>
<TextBlock Grid.Column="0" Text="{Binding Path=ToolTipProgressionTb1}" TextAlignment="Left" HorizontalAlignment="Left"/>
<TextBlock Grid.Column="2" Text="{Binding Path=ToolTipProgressionTb2}" TextAlignment="Right" HorizontalAlignment="Right"/>
</Grid>
</StackPanel>
</Rectangle.ToolTip>
</Rectangle>
</DataTemplate>
</GridViewColumn.CellTemplate>
</GridViewColumn>
</GridView>
</ListView.View>
</ListView>

当我想获取绑定我的列的值时，我使用以下公式：

string header = ((System.Windows.Data.Binding)headerClicked.Column.DisplayMemberBinding).Path.Path;

这段代码和我在GridViewColumn中定义的绑定权限一样好(即：Profile、Priorite…(

问题是，当我的专栏中有一些CellTemplate和一个TextBox时，我想取我的TextBox的DisplayMemberBinding。

对于"Longueur"列，我尝试在GridViewColumn和TextBox中都设置绑定，它解决了问题，但我认为这不是一个好的解决方案。

我该怎么做：

header = ((System.Windows.Data.Binding)headerClicked.Column.CellTemplate.TextBox.DisplayMemberBinding).Path.Path;

Answer 1

以下是如何从TextBlock:检索绑定路径

DataTemplate cellTemplate = headerClicked.Column.CellTemplate;
Grid grid = cellTemplate.LoadContent() as Grid;
TextBlock textBlock = grid.Children.OfType<TextBlock>().FirstOrDefault();
string bindingPath = BindingOperations.GetBinding(textBlock, TextBlock.TextProperty).Path.Path;