/// <summary>
/// Show the watermark on the specified control
/// </summary>
/// <param name="control">Control to show the watermark on</param>
private static void ShowWatermark(Control control)
{
// Remove the old watermark.
control.TryRemoveAdorners <WatermarkAdorner>();
// Add the new watermark.
FrameworkElement content = GetContent(control);
control.TryAddAdorner <WatermarkAdorner>(new WatermarkAdorner(control, content));
}
/// <summary>
/// Updates the watermark.
/// </summary>
/// <param name="control">The control.</param>
private static void UpdateWatermark(Control control)
{
if (ShouldShowWatermark(control))
{
ShowWatermark(control);
}
else
{
control.TryRemoveAdorners <WatermarkAdorner>();
}
}
/// <summary>
/// Handle the GotFocus event on the control
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">A <see cref="RoutedEventArgs" /> that contains the event data.</param>
private static void Control_GotKeyboardFocus(object sender, RoutedEventArgs e)
{
Control c = (Control)sender;
c.TryRemoveAdorners <WatermarkAdorner>();
}