/// <summary>
/// Connect or Disconnect EventHandlers when attached value has changed.
/// </summary>
/// <param name="dependencyObject"></param>
/// <param name="dependencyPropertyChangedEventArgs"></param>
private static void OnSetCallback(DependencyObject dependencyObject,
DependencyPropertyChangedEventArgs dependencyPropertyChangedEventArgs)
{
var frameworkElement = (FrameworkElement)dependencyObject;
var target = OffLineIndicator.GetIsOnline(frameworkElement);
// if (target == null)
// return;
if (frameworkElement == null)
{
return;
}
if (target == true)
{
frameworkElement.Loaded += new RoutedEventHandler(mainToolBar_Loaded);
frameworkElement.Unloaded += new RoutedEventHandler(frameworkElement_Unloaded);
}
else
{
frameworkElement.Loaded -= mainToolBar_Loaded;
frameworkElement.Unloaded -= frameworkElement_Unloaded;
}
}
private static void OnSetCallback(DependencyObject dependencyObject,
DependencyPropertyChangedEventArgs dependencyPropertyChangedEventArgs)
{
var frameworkElement = (FrameworkElement)dependencyObject;
var target = OffLineIndicator.GetIsOnline(frameworkElement);
// if (target == null)
// return;
if (frameworkElement == null)
{
return;
}
if (target == true)
{
frameworkElement.Opacity = 1;
}
else
{
frameworkElement.Opacity = .5;
}
}