How to override copy and paste in richtextbox
How can I override the copy/paste functions in a Richtextbox C# application. Including c开发者_如何学Ctrl-c/ctrl-v and right click copy/paste.
It's WPF richtextBox.
To override the command functions:
protected override bool ProcessCmdKey(ref Message msg, Keys keyData)
{
if (keyData == (Keys.Control | Keys.C))
{
//your implementation
return true;
}
else if (keyData == (Keys.Control | Keys.V))
{
//your implementation
return true;
}
else
{
return base.ProcessCmdKey(ref msg, keyData);
}
}
And right-clicking is not supported in a Winforms RichTextBox
--EDIT--
Realized too late this was a WPF question. To do this in WPF you will need to attach a custom Copy and Paste handler:
DataObject.AddPastingHandler(myRichTextBox, MyPasteCommand);
DataObject.AddCopyingHandler(myRichTextBox, MyCopyCommand);
private void MyPasteCommand(object sender, DataObjectEventArgs e)
{
//do stuff
}
private void MyCopyCommand(object sender, DataObjectEventArgs e)
{
//do stuff
}
What about Cut while using Copy and Paste Handlers? When you have your custom implementation of OnCopy and you handle it by
e.Handled = true;
e.CancelCommand();
OnCopy is also called when doing Cut - I can't find the way to find out whether method was called to perform copy or cut.
I used this:
//doc.Editor is the RichtextBox
DataObject.AddPastingHandler(doc.Editor, new DataObjectPastingEventHandler(OnPaste));
DataObject.AddCopyingHandler(doc.Editor, new DataObjectCopyingEventHandler(OnCopy));
private void OnPaste(object sender, DataObjectPastingEventArgs e)
{
}
private void OnCopy(object sender, DataObjectCopyingEventArgs e)
{
}
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