public void ExecuteBackspaceCommand()
{
Debug.WriteLine("KeyboardViewModel.ExecuteBackspaceCommand");
if (TargetWindow != null)
{
#if !SILVERLIGHT
((Window)TargetWindow).Focus();
#endif
TextBox txtTarget = TargetWindow.ControlToInjectInto as TextBox;
if (txtTarget != null)
{
// Use the built-in Backspace command. Create it only once, and remove it when this VirtualKeyboard window is closing.
//TODO
#if !SILVERLIGHT
if (_backspaceCommandBinding == null)
{
_backspaceCommandBinding = new CommandBinding(EditingCommands.Backspace);
txtTarget.CommandBindings.Add(_backspaceCommandBinding);
}
_backspaceCommandBinding.Command.Execute(null);
#endif
MakeBackspaceSound();
// Perhaps I should return to the following code, if it will work in SL. ?
// This was how I did the Backspace operation without using the command..
//int iCaretIndex = txtTarget.CaretIndex;
//if (iCaretIndex > 0)
//{
// string sOriginalContent = txtTarget.Text;
// int nLength = sOriginalContent.Length;
// if (iCaretIndex >= nLength)
// {
// txtTarget.Text = sOriginalContent.Substring(0, nLength - 1);
// }
// else
// {
// string sPartBeforeCaret = sOriginalContent.Substring(0, iCaretIndex - 1);
// string sPartAfterCaret = sOriginalContent.Substring(iCaretIndex, nLength - iCaretIndex);
// txtTarget.Text = sPartBeforeCaret + sPartAfterCaret;
// }
// txtTarget.CaretIndex = iCaretIndex - 1;
//}
}
else // let's hope it's an IInjectableControl
{
IInjectableControl targetControl = TargetWindow.ControlToInjectInto as IInjectableControl;
if (targetControl != null)
{
targetControl.Backspace();
MakeBackspaceSound();
}
//else
//{
// FsWpfControls.FsRichTextBox.FsRichTextBox txtrTarget = TargetWindow.ControlToInjectInto as FsWpfControls.FsRichTextBox.FsRichTextBox;
// if (txtrTarget != null)
// {
// txtrTarget.InsertThis(chWhat.ToString());
// }
}
}
//textbox.Text = sOriginalContent.Insert(iCaretIndex, sStuffToInsert);
}
