C# DataGrid列标题与筛选器框绑定错误

经过几天的努力，我把我的项目精简到最低限度，把它附加到我的问题上

我想在我的WPF数据网格标题中添加一个文本过滤器框。 但我收到了以下错误消息：

System.Windows.Data Error: 40 : BindingExpression path error: 'TextFilterData' property not found on 'object' ''DataGridColumnHeader' (Name='PART_FillerColumnHeader')'. BindingExpression:Path=TextFilterData; DataItem='DataGridColumnHeader' (Name='PART_FillerColumnHeader'); target element is 'TextBox' (Name='PART_TextFilter'); target property is 'Text' (type 'String')
System.Windows.Data Error: 40 : BindingExpression path error: 'TextFilterData' property not found on 'object' ''DataGridColumnHeader' (Name='')'. BindingExpression:Path=TextFilterData; DataItem='DataGridColumnHeader' (Name=''); target element is 'TextBox' (Name='PART_TextFilter'); target property is 'Text' (type 'String')

我的应用程序中的datagrid：

<Grid>
    <local:MyDataGrid x:Name="myDataGrid">
        <DataGrid.Columns>
            <DataGridTextColumn Header="ID" Width="64"
                                Binding="{Binding Path=id, Mode=OneWay, UpdateSourceTrigger=PropertyChanged, FallbackValue=''}"
                                local:DataGridColumnExtensions.TextFilterData="{Binding Path=FilterId, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}">
                <DataGridTextColumn.HeaderStyle>
                    <Style TargetType="DataGridColumnHeader" BasedOn="{StaticResource {x:Type DataGridColumnHeader}}">
                        <Setter Property="ToolTip" Value="The ID of the person"/>
                    </Style>
                </DataGridTextColumn.HeaderStyle>
            </DataGridTextColumn>

            <!-- The filter data will be replaced by property binding in the real application. Here I'm using a fix value for the sake of simplicity -->
            <DataGridTextColumn Header="Name" Width="400"
                                Binding="{Binding Path=name, Mode=OneWay, UpdateSourceTrigger=PropertyChanged, FallbackValue=''}"
                                local:DataGridColumnExtensions.TextFilterData="{Binding Path=FilterName, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}">
                <DataGridTextColumn.HeaderStyle>
                    <Style TargetType="DataGridColumnHeader" BasedOn="{StaticResource {x:Type DataGridColumnHeader}}">
                        <Setter Property="ToolTip" Value="The name of the person"/>
                    </Style>
                </DataGridTextColumn.HeaderStyle>
            </DataGridTextColumn>
        </DataGrid.Columns>
    </local:MyDataGrid>
</Grid>

这是我正在使用的datagrid样式。为了简单起见，我试图删除所有不需要的东西

<Style TargetType="{x:Type DataGridColumnHeader}">
    <Setter Property="SnapsToDevicePixels" Value="True" />
    <Setter Property="Foreground" Value="White" />
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="{x:Type DataGridColumnHeader}">
                <Grid>
                    <Grid.ColumnDefinitions>
                        <ColumnDefinition Width="*" />
                        <ColumnDefinition Width="Auto" />
                    </Grid.ColumnDefinitions>
                    <Grid.RowDefinitions>
                        <RowDefinition Height="*"/>
                        <RowDefinition Height="Auto"/>
                    </Grid.RowDefinitions>
                    <Border x:Name="BackgroundBorder" BorderThickness="0,1,0,1" Background="Gray" BorderBrush="DarkGray" Grid.ColumnSpan="2" />
                    <ContentPresenter Margin="3" VerticalAlignment="Center" />
                    <Path x:Name="SortArrow" Visibility="Collapsed" Data="M0,0 L1,0 0.5,1 z" Stretch="Fill" Grid.Column="1" Width="8" Height="6" Fill="White" Margin="0,0,8,0" VerticalAlignment="Center" RenderTransformOrigin="0.5,0.5" />
                    <TextBox x:Name="PART_TextFilter"
                            Grid.Row="1" Margin="1,0,1,4"
                            Text="{Binding RelativeSource={RelativeSource AncestorType={x:Type DataGridColumnHeader}}, Path=Column.TextFilterData, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"/>
                    <Thumb x:Name="PART_LeftHeaderGripper" HorizontalAlignment="Left" Style="{StaticResource Style_HeaderGripper}"/>
                    <Thumb x:Name="PART_RightHeaderGripper" HorizontalAlignment="Right" Style="{StaticResource Style_HeaderGripper}"/>
                </Grid>
                <ControlTemplate.Triggers>
                    <Trigger Property="SortDirection" Value="{x:Null}">
                        <Setter TargetName="BackgroundBorder" Property="Background" Value="Transparent" />
                        <Setter TargetName="BackgroundBorder" Property="BorderBrush"  Value="Transparent" />
                    </Trigger>
                    <Trigger Property="IsMouseOver" Value="True">
                        <Setter TargetName="BackgroundBorder" Property="Background" Value="LightGray" />
                        <Setter TargetName="BackgroundBorder" Property="BorderBrush" Value="Gray" />
                    </Trigger>
                    <Trigger Property="SortDirection" Value="Ascending">
                        <Setter TargetName="SortArrow" Property="Visibility" Value="Visible" />
                        <Setter TargetName="SortArrow" Property="RenderTransform">
                            <Setter.Value>
                                <RotateTransform Angle="180" />
                            </Setter.Value>
                        </Setter>
                    </Trigger>
                    <Trigger Property="SortDirection" Value="Descending">
                        <Setter TargetName="SortArrow" Property="Visibility" Value="Visible" />
                    </Trigger>
                </ControlTemplate.Triggers>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>

<Style TargetType="{x:Type local:MyDataGrid}">
    <Setter Property="SnapsToDevicePixels" Value="True" />
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="{x:Type local:MyDataGrid}">
                <Border Background="{TemplateBinding Background}">
                    <ScrollViewer Focusable="false" Name="DG_ScrollViewer">
                        <ScrollViewer.Template>
                            <ControlTemplate TargetType="{x:Type ScrollViewer}">
                                <Grid>
                                    <Grid.RowDefinitions>
                                        <RowDefinition Height="Auto"/>
                                        <RowDefinition Height="*"/>
                                        <RowDefinition Height="Auto"/>
                                    </Grid.RowDefinitions>
                                    <Grid.ColumnDefinitions>
                                        <ColumnDefinition Width="Auto"/>
                                        <ColumnDefinition Width="*"/>
                                        <ColumnDefinition Width="Auto"/>
                                    </Grid.ColumnDefinitions>
                                    <Border Grid.ColumnSpan="3" Background="Gray" BorderBrush="DarkGray" BorderThickness="0,1" />
                                    <Button Command="{x:Static DataGrid.SelectAllCommand}" Width="{Binding RelativeSource={RelativeSource AncestorType={x:Type DataGrid}}, Path=RowHeaderActualWidth}" Focusable="false" OverridesDefaultStyle="True"/>
                                    <DataGridColumnHeadersPresenter Grid.Column="1"                         
                                                                    Visibility="{Binding RelativeSource={RelativeSource AncestorType={x:Type DataGrid}}, 
                                                                                         Path=HeadersVisibility, 
                                                                                         Converter={x:Static DataGrid.HeadersVisibilityConverter},
                                                                                         ConverterParameter={x:Static DataGridHeadersVisibility.Column}}"/>
                                    <ScrollContentPresenter Grid.Row="1" Grid.ColumnSpan="2" CanContentScroll="{TemplateBinding CanContentScroll}" />
                                </Grid>
                            </ControlTemplate>
                        </ScrollViewer.Template>
                        <ItemsPresenter SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" />
                    </ScrollViewer>
                </Border>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
    <Style.Triggers>
        <Trigger Property="IsGrouping" Value="true">
            <Setter Property="ScrollViewer.CanContentScroll" Value="false"/>
        </Trigger>
    </Style.Triggers>
</Style>

使筛选器内容绑定正常工作缺少什么？ 非常感谢您的帮助

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2016-08-10：在Header ControlTemplate中使用第一个补丁进行更新，您正在文本框中使用

RelativeSource Self

<TextBox x:Name="PART_TextFilter" 
   ...
   Text="{Binding RelativeSource={RelativeSource Self}, Path=TextFilterData, ...}"/>

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是的，那也是我最初的版本，但我在玩的时候改变了它。很抱歉，我没有将其更改回去，因为

AncestorType={x:Type DataGridColumnHeader}

更有意义。我更新了上面的问题，但仍然不起作用。@Carpi没问题，你注意到我也改变了路径了吗？附加属性在DataGridColumn上，而不是DataGridColumnHeader上。很酷，这确实解决了我的问题。非常感谢您的大力帮助：o）工作完美。但是，当我现在在datagrid中为过滤器值使用绑定（如上面更新的代码所示）时，我会收到以下错误消息：

无法在“DataGridTextColumn”类型的“SetTextFilterData”属性上设置“binding”。“绑定”只能在DependencyObject的DependencyProperty上设置。

。关于如何解决此问题的任何线索？小的附加信息。抛出的异常是在PresentationFramework.dll中抛出的

异常：“System.Windows.Markup.XamlParseException”
<TextBox x:Name="PART_TextFilter" 
   ...
   Text="{Binding RelativeSource={RelativeSource Self}, Path=TextFilterData, ...}"/>

Text="{Binding RelativeSource={RelativeSource AncestorType={x:Type DataGridColumnHeader}}, 
               Path=Column.TextFilterData, ...}"/>