有没有办法将命令与 WPF 工具包 DataGridHyperlinkColumn 相关联? [英] Is there a way to associate a Command with a WPF Toolkit DataGridHyperlinkColumn?

问题描述

有什么方法可以将命令与 DataGridHyperlinkColumn 相关联?我试过这个:

Is there any way I can associate a Command with a DataGridHyperlinkColumn? I've tried this:

   <DataGridHyperlinkColumn Header="Client Name" Binding="{Binding ShortName}">
     <DataGridHyperlinkColumn.ElementStyle>
      <Style TargetType="TextBlock">
       <Setter Property="Hyperlink.Command" 
                                    Value="{Binding DataContext.NavigateToClientCommand, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type local:ClientsSummaryView}}}"/>
                            <Setter Property="Hyperlink.CommandParameter" Value="{Binding}"/>
                        </Style>
                    </DataGridHyperlinkColumn.ElementStyle>
    </DataGridHyperlinkColumn>

在运行时，我可以看到正在正确评估绑定(调用了 Command 的属性 getter)，但是当我单击超链接时没有执行 Command.有没有更好的方法来做到这一点?

At runtime, I can see that the binding is being correctly evaluated (the property getter for the Command is called), but the Command is not executed when I click the hyperlink. Is there a better way to do this?

谢谢，

丹尼尔

推荐答案

您确定命令与超链接相关联吗?我尝试在示例应用程序中进行设置，但该命令未与超链接关联(如果您从 CanExecute 返回 false，您将能够快速确定它是否已连接).

Are you sure the command is being associated with the hyperlink? I tried setting this up in a sample app, and the command wasn't being associated with the hyperlink (if you return false from CanExecute, you'll be able to quickly determine if it is wired up).

相反，我创建了一个 DataGridTemplateColumn 来完成此操作:

Instead, I created a DataGridTemplateColumn to accomplish this:

<DataGridTemplateColumn Header="Client Name">
    <DataGridTemplateColumn.CellTemplate>
        <DataTemplate>
            <TextBlock>
                <Hyperlink Command="{Binding DataContext.NavigateToClientCommand, RelativeSource={RelativeSource AncestorType={x:Type local:ClientsSummaryView}}}"
                           CommandParameter="{Binding ShortName}">
                     <TextBlock Text="{Binding ShortName}" />
                </Hyperlink>
            </TextBlock>
        </DataTemplate>
    </DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn>

如果您必须创建多个列，这会很烦人.用 Reflector 破解打开 Toolkit 后，看起来它支持使用超链接的TargetName/NavigationUrl 范式.

This would get really annoying if you had to create multiple columns. After cracking open the Toolkit with Reflector, it looks like it is supporting the TargetName / NavigationUrl paradigm for using the hyperlink.

如果您在很多地方都需要这种类型的列，我建议扩展 DataGridHyperlinkColumn 并添加一个 Command 属性.然后您可以修改从 GenerateElement 返回的元素，以便它使用您的命令.

If you have a scenario where you would require this type of column in many places, I would suggest extending the DataGridHyperlinkColumn and adding a Command property. You could then modify the element returned from GenerateElement so that it used your command.

这篇关于有没有办法将命令与 WPF 工具包 DataGridHyperlinkColumn 相关联?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！