wpf数据网格错误？当在具有图像作为标题内容的列上切换可见性时

Question

我有以下问题。

如果我将图像用于数据网格标题，则在切换可见性时会出错。

<DataGridTextColumn Header="{StaticResource Image_Link}" IsReadOnly="True">

错误:Bei dem angegebenen Element handelt es sich bereits um das logische untergeordnete Element eines anderen Elements。

到目前为止，我发现的唯一解决方法是为我的 imageheadercolumns 的每个特定图像创建一个 ControlTemplate。

这个数据网格行为是一个错误吗？

编辑:谷歌翻译的错误:指定的元素已经是另一个元素的逻辑子元素。

编辑:样本

<Window x:Class="WpfApplication1.MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="MainWindow" Height="350" Width="525">
    <Window.Resources>
    <ResourceDictionary>
        <ResourceDictionary.MergedDictionaries>
        <ResourceDictionary Source="Dictionary1.xaml"/>
        </ResourceDictionary.MergedDictionaries>
    </ResourceDictionary>
    </Window.Resources>
    <Grid> 
    <Button Content="Toggle" Click="Button_Click" Height="20" Width="40" HorizontalAlignment="Left"/>
    <DataGrid Width="200">
        <DataGrid.Columns>
        <DataGridTextColumn x:Name="colImage" Header="{StaticResource AnyImage}">

        </DataGridTextColumn>
        </DataGrid.Columns>
    </DataGrid>
    </Grid>
</Window>

资源字典:

<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
            xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">

    <Image x:Key="AnyImage" Source="Home.png" x:Shared="false"/>
</ResourceDictionary>

按钮。单击:

    private void Button_Click(object sender, RoutedEventArgs e)
    {
        this.colImage.Visibility = this.colImage.Visibility == Visibility.Visible
                                       ? Visibility.Collapsed
                                       : Visibility.Visible;
    }

Answer 1

**编辑:删除了之前不相关的答案 **

您需要将图像放在列的 headertemplate 中。
工作示例代码

<Window x:Class="WpfApplication1.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:local="clr-namespace:WpfApplication1"
        Title="MainWindow" Height="350" Width="525">
    <Window.Resources>
        <BitmapImage x:Key="Image_Link" UriSource="test.bmp" />
    </Window.Resources>
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="30"/>
            <RowDefinition Height="*"/>
        </Grid.RowDefinitions>
        <Button Content="Button" Name="button1" Width="75" Click="button1_Click" />
        <Grid Grid.Row="1">
            <DataGrid Height="200" VerticalAlignment="Top">
                <DataGrid.Columns>
                    <DataGridTextColumn x:Name="firstHeader" IsReadOnly="True">
                        <DataGridTextColumn.HeaderTemplate>
                            <DataTemplate>
                                <Image Source="{StaticResource Image_Link}"  />
                            </DataTemplate>
                        </DataGridTextColumn.HeaderTemplate>
                    </DataGridTextColumn>
                </DataGrid.Columns>
            </DataGrid>
        </Grid>
    </Grid>
</Window>

private void button1_Click(object sender, RoutedEventArgs e)
{
        firstHeader.Visibility = firstHeader.Visibility == Visibility.Visible ? Visibility.Collapsed : Visibility.Visible;
}