我有以下事件处理程序：
private void rtb_MouseDown(object sender, MouseEventArgs e)
{
if (e.RightButton == MouseButtonState.Pressed)
{
// Get the nearest TextPointer to the mouse position.
TextPointer location = rtb.GetPositionFromPoint(Mouse.GetPosition(rtb), true);
// Get the nearest word using this TextPointer.
TextRange word = GetWordRange(location);
// Display the word.
tb.Text = word.Text;
e.Handled = true;
}
}
这连接到RichTextBox的PreviewMouseDown事件 . 触发此事件并调用上述方法，并且光标下的单词显示在单独的TextBox（称为tb）中 .
问题是，之后还会显示鼠标右键单击事件的默认上下文菜单（包含剪切/复制/粘贴选项） . 将Handled属性设置为true似乎没有帮助 . 如何禁用此上下文菜单？
编辑：Xaml代码：
<Window x:Class="rtbTest1.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">
<Grid>
<RichTextBox Height="175" HorizontalAlignment="Left" Margin="10,127,0,0" Name="rtb" VerticalAlignment="Top" Width="483" PreviewMouseDown="rtb_MouseDown" />
<TextBox Height="59" HorizontalAlignment="Left" Margin="286,24,0,0" Name="tb" VerticalAlignment="Top" Width="186" />
<Button Content="Button" Height="23" HorizontalAlignment="Left" Margin="63,56,0,0" Name="btn1" VerticalAlignment="Top" Width="75" Click="btn1_Click" />
</Grid>
</Window>
1 回答
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