private void GridSizeTextBox_MouseWheel(object sender, MouseWheelEventArgs e) { var textBox = sender as NumericTextBox; if (textBox == null) return; textBox.Value = e.Delta > 0 ? textBox.Value + 1 : textBox.Value - 1; if (textBox.Tag.Equals("Editor")) AdjustToSize(); else AdjustToSizeBoard(); }