private static void SelectionLengthExChangedCallback(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
TextBoxEx textBox = (TextBoxEx)d;
textBox.Focus();
textBox.SelectionLength = (int)e.NewValue;
}
private static void CaretIndexExChangedCallback(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
TextBoxEx textBox = (TextBoxEx)d;
textBox.Focus();
int value = (int)e.NewValue;
int line = textBox.GetLineIndexFromCharacterIndex(value);
if (line >= 0)
{
textBox.ScrollToLine(line);
}
}
