C＃WPF创建DataGrid小区的上下文菜单

Question

XAML如下：

<Window x:Class="WpfApplication2.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.CommandBindings>
        <CommandBinding Command="ApplicationCommands.Copy"
                        Executed="CopyCommand_Executed"
                        CanExecute="CopyCommand_CanExecute"/>
    </Window.CommandBindings>
    <Window.Resources>
        <ContextMenu x:Key="ctMenu" DataContext="{Binding PlacementTarget,RelativeSource={RelativeSource Self}}">
            <MenuItem Header="Copy to clipboard"
                      Command="ApplicationCommands.Copy"
                      CommandTarget="{Binding}"
                      CommandParameter="{Binding Text}"/>
        </ContextMenu>
    </Window.Resources>
    <Grid>
        <TabControl Name="MainTabControl">
            <TabItem Name="StackPanelTab" Header="StackPanel Tab" Margin="24,-2,-28,0">
                <StackPanel>
                    <TextBlock Text="123" ContextMenu="{StaticResource ctMenu}"/>
                    <TextBlock Text="456" ContextMenu="{StaticResource ctMenu}"/>
                </StackPanel>
            </TabItem>
            <TabItem Name="DataGridTab" Header="DataGrid Tab" Margin="31,-2,-35,0">
                <DataGrid Name="datagrid1">
                    
                </DataGrid>
            </TabItem>
        </TabControl>
    </Grid>
</Window>

背后的代码如下：

using System.Windows;
using System.Windows.Input;

namespace WpfApplication2
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
            List<User> users = new List<User>();
            users.Add(new User() { Id = 1, Name = "Jane"});
            users.Add(new User() { Id = 2, Name = "Bob" });
            datagrid1.ItemsSource = users;

        }

        private void CopyCommand_Executed(object sender, ExecutedRoutedEventArgs e)
        {
            Clipboard.SetText(e.Parameter as string);
        }

        private void CopyCommand_CanExecute(object sender, CanExecuteRoutedEventArgs e)
        {
            if (!string.IsNullOrEmpty(e.Parameter as string))
            {
                e.CanExecute = true;
                e.Handled = true;
            }
        }
    }

    public class User
    {
        public int Id { get; set; }
        public string Name { get; set; }
    }
}

您尝试在PreviewMouseRightButtonDown

活动中做某事吗？

<Grid>
    <TabControl Name="MainTabControl">
        <TabItem Name="StackPanelTab" Header="StackPanel Tab" Margin="24,-2,-28,0">
            <StackPanel>
                <TextBlock Text="123" ContextMenu="{StaticResource ctMenu}"/>
                <TextBlock Text="456" ContextMenu="{StaticResource ctMenu}"/>
            </StackPanel>
        </TabItem>
        <TabItem Name="DataGridTab" Header="DataGrid Tab" Margin="31,-2,-35,0">
            <DataGrid 
                Name="datagrid1"
                PreviewMouseRightButtonDown="AnyCell_ContextMenuRequest">

            </DataGrid>
        </TabItem>
    </TabControl>
</Grid>

Answer 1

当我对其进行测试时，这是概念的基本证明：

private void AnyCell_ContextMenuRequest(object sender, MouseButtonEventArgs e)
{
    if (e.OriginalSource is TextBlock block)
    {
        Clipboard.SetText(block.Text);
    }
}