protected virtual void OnResourceItemLoaded(ResourceLoadEventArgs e)
 {
     if (ResourceLoadItemProgress != null)
     {
         ResourceLoadItemProgress(this, e);
     }
 }
 protected virtual void OnResourceItemLoaded(ResourceLoadEventArgs e)
 {
     if (ResourceLoadItemProgress != null) ResourceLoadItemProgress(this, e);
 }
 protected virtual void CallResourceItemLoaded(ResourceLoadEventArgs e)
 {
     Dispatcher.Invoke((MethodInvoker)(() => OnResourceItemLoaded(e)));
 }
 protected virtual void CallResourceItemLoaded(ResourceLoadEventArgs e)
 {
     Dispatcher.Invoke((MethodInvoker)(() => OnResourceItemLoaded(e)));
 }