C# 将 WPF 文本框限制为剪切、复制和粘贴
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原文地址: http://stackoverflow.com/questions/938145/
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Make WPF textbox as cut, copy and paste restricted
提问by Sauron
How can I make a WPF textbox cut, copy and paste restricted?
如何限制 WPF 文本框的剪切、复制和粘贴？
采纳答案by Prashant Cholachagudda
Cut, Copy and Paste are the common commands used any application,
剪切、复制和粘贴是任何应用程序使用的常用命令，
<TextBox CommandManager.PreviewExecuted="textBox_PreviewExecuted"
ContextMenu="{x:Null}" />
in above textbox code we can restrict these commands in PrviewExecuted event of CommandManager Class
在上面的文本框代码中，我们可以在 CommandManager 类的 PrviewExecuted 事件中限制这些命令
and in code behind add below code and your job is done
并在后面的代码中添加以下代码，您的工作就完成了
private void textBox_PreviewExecuted(object sender, ExecutedRoutedEventArgs e)
{
if (e.Command == ApplicationCommands.Copy ||
e.Command == ApplicationCommands.Cut ||
e.Command == ApplicationCommands.Paste)
{
e.Handled = true;
}
}
回答by Debashis Panda
The commandName method will not work on a System with Japanese OS as the commandName=="Paste" comparision will fail. I tried the following approach and it worked for me. Also I do not need to disable the context menu manually.
commandName 方法不适用于具有日语操作系统的系统，因为 commandName=="Paste" 比较将失败。我尝试了以下方法，它对我有用。此外，我不需要手动禁用上下文菜单。
In the XaML file:
在 XaML 文件中：
<PasswordBox.CommandBindings>
<CommandBinding Command="ApplicationCommands.Paste"
CanExecute="CommandBinding_CanExecutePaste"></CommandBinding>
</PasswordBox.CommandBindings>
In the code behind:
在后面的代码中：
private void CommandBinding_CanExecutePaste(object sender, CanExecuteRoutedEventArgs e)
{
e.CanExecute = false;
e.Handled = true;
}
