/// <summary>
/// Called when watermark property is changed.
/// </summary>
/// <param name="sender">The sender.</param>
/// <param name="args">The <see cref="System.Windows.DependencyPropertyChangedEventArgs"/> instance containing the event data.</param>
private static void OnWatermarkPropertyChanged(DependencyObject sender, DependencyPropertyChangedEventArgs args)
{
WatermarkedTextBox watermarkTextBox = sender as WatermarkedTextBox;
Debug.Assert(watermarkTextBox != null, "The source is not an instance of a WatermarkedTextBox!");
watermarkTextBox.ChangeVisualState();
}
/// <summary>
/// Called when is enabled property is changed.
/// </summary>
/// <param name="sender">The sender.</param>
/// <param name="args">The <see cref="System.Windows.DependencyPropertyChangedEventArgs"/> instance containing the event data.</param>
private void OnIsEnabledPropertyChanged(object sender, DependencyPropertyChangedEventArgs args)
{
WatermarkedTextBox watermarkedTextBox = this;
Debug.Assert(watermarkedTextBox != null, "The source is not an instance of a WatermarkedTextBox!");
bool newValue = (bool)args.NewValue;
watermarkedTextBox.IsHitTestVisible = newValue;
watermarkedTextBox.IsTabStop = newValue;
watermarkedTextBox.IsReadOnly = !newValue;
watermarkedTextBox.ChangeVisualState();
}