topic Dynamic Feature DataForm FeatureLayer in ArcGIS API for Silverlight Questions

Dynamic Feature DataForm FeatureLayer

DonFreeman — Fri, 04 Feb 2011 18:20:31 GMT

I have a FeatureDataForm coded like this.

<esri2:FeatureDataForm x:Name="MyFeatureDataForm"   
       FeatureLayer="{Binding Path=Layers[AllAvailableFeatureLayer], ElementName=MyMap}" 
       IsEnabled="True"
                            IsReadOnly="False" 
       LabelPosition="Left"
       />

And code behind like this.

 private void AllAvailableFeatureLayer_MouseLeftButtonUp(object sender, GraphicMouseButtonEventArgs args)
   {
   FeatureLayer featureLayer = sender as FeatureLayer;

   for (int i = 0; i < featureLayer.SelectionCount; i++)
    featureLayer.SelectedGraphics.ToList().UnSelect();

   args.Graphic.Select();
   MyFeatureDataForm.GraphicSource = args.Graphic;

   FeatureDataFormBorder.Visibility = Visibility.Visible;
   MyPopup.IsOpen=true;
   }

I would like to make the FeatureLayer in the DataForm dynamic so that it is set to the layer which triggered the mouse click. Would this be possible and what would be the syntax?
Thanks

Re: Dynamic Feature DataForm FeatureLayer

AliMirzabeigi — Sun, 12 Dec 2021 07:36:44 GMT

I think the easiest way would be having the same MouseLeftButtonUp event handler for all your feature layers and setting FeatureDataForm's FeatureLayer and GraphicSource properties based upon the values of the sender object and the GraphicMouseButtonEventArgs argument in your handler, i.e. in your XAML:

<esri2:FeatureDataForm x:Name="MyFeatureDataForm" ........... />

And in your code-behind:

private void FeatureLayer_MouseLeftButtonUp(object sender, GraphicMouseButtonEventArgs args)
{
 FeatureLayer featureLayer = sender as FeatureLayer;
 for (int i = 0; i < featureLayer.SelectionCount; i++)
  featureLayer.SelectedGraphics.ToList().UnSelect();
 args.Graphic.Select();
 
 MyFeatureDataForm.FeatureLayer = featureLayer;
 MyFeatureDataForm.GraphicSource = args.Graphic;
 FeatureDataFormBorder.Visibility = Visibility.Visible;
 MyPopup.IsOpen=true;
}

Re: Dynamic Feature DataForm FeatureLayer

DonFreeman — Sun, 12 Dec 2021 07:36:47 GMT

I think the easiest way would be having the same MouseLeftButtonUp event handler for all your feature layers and setting FeatureDataForm's FeatureLayer and GraphicSource properties based upon the values of the sender object and the GraphicMouseButtonEventArgs argument in your handler, i.e. in your XAML:
<esri2:FeatureDataForm x:Name="MyFeatureDataForm" ........... />
And in your code-behind:
private void FeatureLayer_MouseLeftButtonUp(object sender, GraphicMouseButtonEventArgs args)
{
 FeatureLayer featureLayer = sender as FeatureLayer;
 for (int i = 0; i < featureLayer.SelectionCount; i++)
  featureLayer.SelectedGraphics.ToList().UnSelect();
 args.Graphic.Select();
 
 MyFeatureDataForm.FeatureLayer = featureLayer;
 MyFeatureDataForm.GraphicSource = args.Graphic;
 FeatureDataFormBorder.Visibility = Visibility.Visible;
 MyPopup.IsOpen=true;
}

Great! Just one line was needed. I never thought it could be that easy.
Thanks