windows form applications' cut copy paste functionality

Question

I have windows forms application with multiple forms and controls in them. I want if user has selected some text in any control of any form of my application and click on cut/copy/paste button on toolbar operation get performed accordingly.

i m using C#.net's sendkeys.send("^c") on click of copy button but it doesn't work...

OR any 1 can tell if is there any way to get selected text (despite of knowing, which form/control of my application).

Thanks in advance...

Answer 1

have you used clipboard to copy and paste you data if not than use clipboard for this

check this article for more about clipboard: http://www.geekpedia.com/tutorial188_Clipboard-Copy-and-Paste-with-Csharp.html

Answer 2

To your second question:

You can use this solution http://stackoverflow.com/questions/435433/what-is-the-preferred-way-to-find-focused-control-in-winforms-app/439606#439606 to find the currently focused control.

Then check, what type it is to read the selection (i.e. if it is TextBox use SelectedText-Propery http://msdn.microsoft.com/en-us/library/system.windows.controls.textbox.selectedtext.aspx)

Answer 3

I use this in the method handling the copy event:

if (this.ActiveControl is TextBox)
{
      Clipboard.SetDataObject(((TextBox)this.ActiveControl).SelectedText, true);
}
if (this.ActiveControl is RichTextBox)
{
      Clipboard.SetDataObject(((RichTextBox)this.ActiveControl).SelectedText, true);
}
if (this.ActiveControl is ComboBox)
{
       Clipboard.SetDataObject(((ComboBox)this.ActiveControl).SelectedText, true);
}

For paste, something like this:

nCursorPosition = ((RichTextBox)this.ActiveControl).SelectionStart;
this.ActiveControl.Text = this.ActiveControl.Text.Insert(nCursorPosition, Clipboard.GetText());