private void Paste1_Click(object sender, EventArgs e)
{
// Determine if there is any text in the Clipboard to paste into the text box.
if (Clipboard.GetDataObject().GetDataPresent(DataFormats.Text))
{
// Determine if any text is selected in the text box.
if (TextBox1.SelectionLength > 0)
{
// Save selection start point and selction length
int SelStart = TextBox1.SelectionStart;
int SelLength = TextBox1.SelectionLength;
switch (PasteMode)
{
case PasteModes.BeforeSelection:
// Turn off the selection, paste clipboard text then re-show selection
// in corrected position after adding the text
TextBox1.DeselectAll();
TextBox1.Paste();
TextBox1.SelectionStart = SelStart + Clipboard.GetText().Length;
TextBox1.SelectionLength = SelLength;
break;
case PasteModes.AfterSelection:
// Turn of the selection to prevent it getting overwritten, paste clipboard
// text, then set selection back to how it was
TextBox1.DeselectAll();
TextBox1.SelectionStart = SelStart + SelLength;
TextBox1.Paste();
TextBox1.SelectionStart = SelStart;
TextBox1.SelectionLength = SelLength;
break;
case PasteModes.OverSelection:
TextBox1.Paste();
break;
default:
break;
}
}
else
{
TextBox1.Paste();
}
}
}
