有没有办法将一个命令与一个WPF工具包DataGridHyperlinkColumn？ [英] Is there a way to associate a Command with a WPF Toolkit DataGridHyperlinkColumn?

问题描述

有什么办法我可以关联一个命令与DataGridHyperlink列吗？我尝试过：

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，我可以看到绑定正在被正确求值（命令的属性getter调用），但是当我单击超链接时不执行命令。有更好的方法吗？

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?

感谢，

丹尼尔

推荐答案

您确定该命令与超链接相关联吗？我尝试在一个示例应用程序中设置此命令，并且该命令没有与超链接相关联（如果从 CanExecute 返回false，您将能够快速确定

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).

而是创建了一个 DataGridTemplateColumn 来实现这一目的：

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>

如果你必须创建多个列，这将会非常讨厌。破解后使用反射器打开Toolkit，它看起来像是支持使用超链接的 TargetName / NavigationUrl 范例。

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.

如果你有一个场景，在许多地方你需要这种类型的列，我建议扩展 DataGridHyperlinkColumn 并添加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.

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