c# - Using InfoWindow with Feature Layer and DialogWindowBase?

I need to have an infoWindow that displays the Outfields of a FeatureLayer. The infoWindow is popping up, but it is popping up no matter where you click on the map and it does not contain any of the content. I have looked through the documentation and the only difference is that instead of using a UserControl, I am using a DialogWindowBase. Below is my XAML and C#.

XAML:

                    
                        
                        
                        
                        
                        
                        
                        


                        
                    
                


               

                    
                     



    
                    
      

                                         Padding="2"
                             CornerRadius="20"
                             Background="{StaticResource PanelGradient}"
                             Map="{Binding ElementName=My_Map}"

                             ContentTemplate="{StaticResource MyFeatureLayerInfoWindowTemplate}"
                         MouseLeftButtonUp="MyInfoWindow_MouseLeftButtonUp">

            

C#: Here is the C# code that I have that will at least build and allow the infoWindow to appear:

private void MyMap_MouseClick(object sender, Map.MouseEventArgs e)
        {

            FeatureLayer featurelayer = MyMap.Layers["Water_Valves"] as FeatureLayer;

            System.Windows.Point screenPoint = MyMap.MapToScreen(e.MapPoint);

            MyInfoWindow.Anchor = e.MapPoint;
            MyInfoWindow.IsOpen = true;
        }

Here is the way the documentation does it:

 private void MyMap_MouseClick(object sender, ESRI.ArcGIS.Client.Map.MouseEventArgs e)
        {
            FeatureLayer featureLayer = MyMap.Layers["MyFeatureLayer"] as FeatureLayer;

            System.Windows.Point screenPnt = MyMap.MapToScreen(e.MapPoint);

            // Account for difference between Map and application origin
            GeneralTransform generalTransform = MyMap.TransformToVisual(Application.Current.MainWindow);
            System.Windows.Point transformScreenPnt = generalTransform.Transform(screenPnt);

            IEnumerable selected =
                featureLayer.FindGraphicsInHostCoordinates(transformScreenPnt);

            foreach (Graphic g in selected)

            {

                MyInfoWindow.Anchor = e.MapPoint;
                MyInfoWindow.IsOpen = true;
                //Since a ContentTemplate is defined, Content will define the DataContext for the ContentTemplate
                MyInfoWindow.Content = g.Attributes;
                return;
            }
        }

When I try to run it while using the generalTransform is says that is cannot do it because it is not an ancestor.

Answer

I found an alternate way to do it that works.

XAML:

                             Padding="2"
                             CornerRadius="20"
                             Background="{StaticResource PanelGradient}"
                             Map="{Binding ElementName=MyMap}"
                             ContentTemplate="{StaticResource MyFeatureLayerInfoWindowTemplate}">                

            

C#:

 MapPoint lastPoint = null;

        private void FeatureLayer_MouseLeftButtonUp(object sender, GraphicMouseButtonEventArgs e)
        {
            FeatureLayer flayer = sender as FeatureLayer;

            MapPoint clickpoint = MyMap.ScreenToMap(e.GetPosition(MyMap));


            if (clickpoint != lastPoint)
            {
                MyInfoWindow.Anchor = clickpoint;
                MyInfoWindow.Content = e.Graphic.Attributes;
                MyInfoWindow.IsOpen = true;
                lastPoint = clickpoint;
            }
        }