private static void TextBox_PreviewMouseLeftButtonUp(object sender, MouseButtonEventArgs e)
{
e.Handled = true;
TextBox textBox = sender as TextBox;
NumberKeyboard numberKeyboard = null;
if (GetNumberKeyboard(textBox) == null)
{
SetNumberKeyboard(textBox, new NumberKeyboard());
}
numberKeyboard = GetNumberKeyboard(textBox);
numberKeyboard._owner = textBox;
numberKeyboard.Show();
}
private static void SetNumberKeyboard(TextBox textBoxBase, NumberKeyboard value)
{
textBoxBase.SetValue(NumberKeyboardProperty, value);
}