Custom cluster graphic does not fire mouse handler

VernonChin — Wed, 29 Jan 2014 21:10:11 GMT

Hello,

I have created a custom graphics cluster in code-behind with the following XAML:

<esri:GraphicsLayer ID="WorkOrders" MouseLeftButtonUp="GraphicsLayer_MouseLeftButtonUp">
    <esri:GraphicsLayer.Clusterer>
        <s:OrderClusterer>
        </s:OrderClusterer>
    </esri:GraphicsLayer.Clusterer>
</esri:GraphicsLayer>

The mouse up handler normally fires when I click on an unclustered graphic; I am wondering why the cluster graphic (if it belongs to the same graphics layer) does not fire the handler.

Do I need to work around this with a generic map mouseclick handler [as I am currently doing in my generic map touch handler] via FindGraphicsInHostCoordinates() ?

Thanks,
Vernon

Re: Custom cluster graphic does not fire mouse handler

VernonChin — Thu, 30 Jan 2014 18:12:30 GMT

FWIW, I have also found a slight conflict in the API docs regarding hit-testing (specifically for the cluster graphic). In the FlareClusterer documentation overview, it says

If providing some form of combined graphic attribute information for multiple graphics is desired for the non-interactive grouping symbol, you could use a creative solution like using the ESRI.ArcGIS.Client.GraphicsLayer.FindGraphicsInHostCoordinates in the Map Control to determine via a mouse click if the non-interactive grouping symbol was found and display a custom UIElement back to the user with the desired information

And in the GraphicsLayer.FindGraphicsInHostCoordinates() documentation it reads:

If the System.Windows.Point location finds a clustered graphic, the individual graphics that the cluster represents will be returned

Can anyone tell me what I'm missing here?

topic Custom cluster graphic does not fire mouse handler in ArcGIS Runtime SDK for WPF (Retired) Questions

Custom cluster graphic does not fire mouse handler

Re: Custom cluster graphic does not fire mouse handler