Question

如何将Click事件处理程序添加到DataGrid的动态生成的ContextMenu中？

我看到有人说使用'Tag'属性，但是我不确定如何在XAML中添加代码，或者不确定是否需要在后面的代码中完成。

谢谢。

<DataGrid ItemsSource="{Binding MyModules}" AutoGenerateColumns="False" x:Name="dataGrid">

    <DataGrid.ItemContainerStyle>
        <Style TargetType="DataGridRow">
            <Setter Property="ContextMenu">
                <Setter.Value>
                    <ContextMenu ItemsSource="{Binding Configuration.Commands}">
                        <ContextMenu.ItemContainerStyle>
                            <Style TargetType="MenuItem">
                                <Setter Property="Header" Value="{Binding Caption}" />
                                <!-- Instead of the following two lines where I set the CommandAction and CommandParameter, I need to have a Click Event Handler. How can I achieve that? -->
                                <!-- <Setter Property="Command" Value="{Binding CommandAction}" />
                                <Setter Property="CommandParameter" Value="{Binding CommandId}" /> -->
                            </Style>
                        </ContextMenu.ItemContainerStyle>
                    </ContextMenu>
                </Setter.Value>
            </Setter>
        </Style>
    </DataGrid.ItemContainerStyle>
    
    <DataGrid.Columns>
        <DataGridTemplateColumn Header="Module Name" Width="*" IsReadOnly="True">
            <DataGridTemplateColumn.CellTemplate>
                <DataTemplate>
                    <TextBlock Text="{Binding Configuration.Name}" />
                </DataTemplate>
            </DataGridTemplateColumn.CellTemplate>
        </DataGridTemplateColumn>

        <DataGridTemplateColumn Header="Module Caption" Width="3*" IsReadOnly="True">
            <DataGridTemplateColumn.CellTemplate>
                <DataTemplate>
                    <TextBlock Text="{Binding Configuration.Description}" />
                </DataTemplate>
            </DataGridTemplateColumn.CellTemplate>
        </DataGridTemplateColumn>
    </DataGrid.Columns>

</DataGrid>

Answer 1

您可以使用EventSetter：

<Setter Property="ContextMenu">
    <Setter.Value>
        <ContextMenu ItemsSource="{Binding Configuration.Commands}">
            <ContextMenu.ItemContainerStyle>
                <Style TargetType="MenuItem">
                    <Setter Property="Header" Value="{Binding Caption}" />
                    <EventSetter Event="Click" Handler="MenuItem_Click" />
                </Style>
            </ContextMenu.ItemContainerStyle>
        </ContextMenu>
    </Setter.Value>
</Setter>

如何将Click事件处理程序添加到DataGrid上下文菜单？

1 个答案: