/// <summary>
/// Called when the user releases the left mouse button over the ListBoxItem.
/// </summary>
/// <param name="e">The event data.</param>
protected override void OnMouseLeftButtonUp(System.Windows.Input.MouseButtonEventArgs e)
{
e.Handled = true;
RadComboBox parentComboBox = this.ParentComboBox;
if (parentComboBox != null)
{
parentComboBox.NotifyComboBoxItemMouseUp(this);
}
base.OnMouseLeftButtonUp(e);
}