WPF数据网格的错误？当一列切换的知名度与形象headercontent [英] wpf datagrid bug? when toggle visibility on a column with an image as headercontent
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问题描述
我有以下问题。
如果我用一个形象的一个DataGrid的头，我得到一个错误，而切换的知名度。
＆LT; DataGridTextColumn标题={的StaticResource图片链接}的IsReadOnly =真＆GT;
错误：北DEM angegebenen元handelt ES SICH bereits嗯达斯logische untergeordnete元EINES anderen元素
唯一的解决方法我发现迄今是创建一个的ControlTemplate与我imageheadercolumns具体形象的foreach。
这是DataGrid的行为一个错误？
编辑：错误翻译由谷歌：指定的元素已经是另一个元素的逻辑子
。编辑：样品
＆LT;窗口x：类=WpfApplication1.MainWindow
的xmlns =http://schemas.microsoft.com/winfx/2006/xaml/$p$psentation
的xmlns：X =http://schemas.microsoft.com/winfx/2006/xaml
标题=主窗口高度=350宽度=525＆GT;
＆LT; Window.Resources＆GT;
＆LT;的ResourceDictionary＆GT;
＆LT; ResourceDictionary.MergedDictionaries＆GT;
＆LT; ResourceDictionary中源=Dictionary1.xaml/＆GT;
＆LT; /ResourceDictionary.MergedDictionaries>
＆LT; / ResourceDictionary中＆GT;
＆LT; /Window.Resources>
＆LT;电网＆GT;
＆LT;按钮内容=切换点击=Button_Click高度=20WIDTH =40的HorizontalAlignment =左/＆GT;
＆LT; DataGrid的宽度=200＆GT;
＆LT; DataGrid.Columns＆GT;
＆LT; DataGridTextColumn X：名称=colImage标题={的StaticResource AnyImage}＆GT;
＆LT; / DataGridTextColumn＆GT;
＆LT; /DataGrid.Columns>
＆LT; /数据网格＆GT;
＆LT; /网格＆GT;
＆LT; /窗＆GT;
ResourceDictionary中：
＆LT; ResourceDictionary中的xmlns =http://schemas.microsoft.com/winfx/2006/xaml/$p$psentation
的xmlns：X =http://schemas.microsoft.com/winfx/2006/xaml＆GT;
＆lt;图像X：关键=AnyImage来源=Home.pngX：共享=假/＆GT;
＆LT; / ResourceDictionary中＆GT;
Button.Click：
私人无效Button_Click（对象发件人，RoutedEventArgs E）
{
this.colImage.Visibility = this.colImage.Visibility == Visibility.Visible
？ Visibility.Collapsed
：Visibility.Visible;
}
解决方案
**编辑：删除了previous答案这是不相关的 **
你需要把图像中列的HeaderTemplate中。
工作样本code
＆LT;窗口x：类=WpfApplication1.MainWindow
的xmlns =http://schemas.microsoft.com/winfx/2006/xaml/$p$psentation
的xmlns：X =http://schemas.microsoft.com/winfx/2006/xaml
XMLNS：地方=CLR的命名空间：WpfApplication1
标题=主窗口高度=350宽度=525＆GT;
＆LT; Window.Resources＆GT;
＆LT;的BitmapImage X：关键=图片链接UriSource =test.bmp/＆GT;
＆LT; /Window.Resources>
＆LT;电网＆GT;
＆LT; Grid.RowDefinitions＆GT;
＆LT; RowDefinition高度=30/＆GT;
＆LT; RowDefinition身高=*/＆GT;
＆LT; /Grid.RowDefinitions>
＆LT;按钮内容=按钮NAME =Button1的WIDTH =75点击=的button1_Click/＆GT;
＆所述;电网Grid.Row =1＆GT;
＆LT;数据网格高度=200VerticalAlignment =热门＆GT;
＆LT; DataGrid.Columns＆GT;
＆LT; DataGridTextColumn X：名称=firstHeader的IsReadOnly =真＆GT;
＆LT; DataGridTextColumn.HeaderTemplate＆GT;
＆LT;的DataTemplate＆GT;
＆lt;图像源={的StaticResource图片链接}/＆GT;
＆LT; / DataTemplate中＆GT;
＆LT; /DataGridTextColumn.HeaderTemplate>
＆LT; / DataGridTextColumn＆GT;
＆LT; /DataGrid.Columns>
＆LT; /数据网格＆GT;
＆LT; /网格＆GT;
＆LT; /网格＆GT;
＆LT; /窗＆GT;
私人无效的button1_Click（对象发件人，RoutedEventArgs E）
{
firstHeader.Visibility = firstHeader.Visibility == Visibility.Visible？ Visibility.Collapsed：Visibility.Visible;
}
i have the following problem.
if i use an image for a datagrid header i get an error while toggling visibility.
<DataGridTextColumn Header="{StaticResource Image_Link}" IsReadOnly="True">
Error: Bei dem angegebenen Element handelt es sich bereits um das logische untergeordnete Element eines anderen Elements.
the only workaround i found so far is to create a ControlTemplate with the specific image foreach of my imageheadercolumns.
is this datagrid behaviour a bug?
EDIT: Error translated by google: The specified element is already the logical child of another element.
EDIT: Sample
<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>
ResourceDictionary:
<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>
Button.Click:
private void Button_Click(object sender, RoutedEventArgs e)
{
this.colImage.Visibility = this.colImage.Visibility == Visibility.Visible
? Visibility.Collapsed
: Visibility.Visible;
}
解决方案
**EDIT: Deleted the previous answer which wasn't relevant**
You will need to put the image in headertemplate of column.
working sample code
<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;
}
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