如何将WPF文本框剪切,复制和粘贴限制?
Cut, Copy and Paste are the common commands used any application,
<TextBox CommandManager.PreviewExecuted="textBox_PreviewExecuted"
ContextMenu="{x:Null}" />
in above textbox code we can restrict these commands in PrviewExecuted event of CommandManager Class
and in code behind add below code and your job is done
private void textBox_PreviewExecuted(object sender, ExecutedRoutedEventArgs e)
{
if (e.Command == ApplicationCommands.Copy ||
e.Command == ApplicationCommands.Cut ||
e.Command == ApplicationCommands.Paste)
{
e.Handled = true;
}
}
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.
In the XaML file:
<PasswordBox.CommandBindings>
<CommandBinding Command="ApplicationCommands.Paste"
CanExecute="CommandBinding_CanExecutePaste"></CommandBinding>
</PasswordBox.CommandBindings>
In the code behind:
private void CommandBinding_CanExecutePaste(object sender, CanExecuteRoutedEventArgs e)
{
e.CanExecute = false;
e.Handled = true;
}
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