/// <summary>
/// CanExecuteClearCommand handler.
/// </summary>
/// <param name="sender">SearchTextBox</param>
/// <param name="e">CanExecuteRoutedEventArgs</param>
private static void CanExecuteClearCommand(object sender, CanExecuteRoutedEventArgs e)
{
SearchTextBox self = sender as SearchTextBox;
e.CanExecute = self.CanClearText();
}
/// <summary>
/// OnClearTextCommand handler.
/// </summary>
/// <param name="sender">SearchTextBox</param>
/// <param name="e">ExecutedRoutedEventArgs</param>
private static void ExecuteClearTextCommand(object sender, ExecutedRoutedEventArgs e)
{
SearchTextBox self = sender as SearchTextBox;
self.Clear();
}