topic Re: MouseDown on GraphicsLayer with custom Renderer in ArcGIS API for Flex Questions

MouseDown on GraphicsLayer with custom Renderer

DavidElies — Mon, 01 Nov 2010 20:16:20 GMT

When I listen for MouseDown events on a GraphicsLayer, I usually get a Graphic as the target, but when I use a UniqueValueRenderer I get a CustomSprite. I am using Picture Marker Symbols to display point data. Does anybody know how to get the graphic from a MouseDown on a GraphicsLayer using a UniqueValueRenderer?

Thanks!

Re: MouseDown on GraphicsLayer with custom Renderer

RobertScheitlin__GISP — Mon, 01 Nov 2010 20:22:02 GMT

David,

It actually has more to do with the PictureMarkerSymbol than the UniqueValueRenderer.

The way to avoid this is to set mouseChildren = "false".

Re: MouseDown on GraphicsLayer with custom Renderer

DavidElies — Mon, 01 Nov 2010 20:28:32 GMT

David,

It actually has more to do with the PictureMarkerSymbol than the UniqueValueRenderer.

The way to avoid this is to set mouseChildren = "false".

Thanks for your quick reply!

I was actually looking at the mouseChildren attribute. Symbols don't seem to have a mouseChildren attribute, and the graphicAdd event never seems to be triggered, so I can't set it for the Graphic. Do you mean that I should set mouseChildren=false for the GraphicsLayer?

Thanks again!

Re: MouseDown on GraphicsLayer with custom Renderer

RobertScheitlin__GISP — Mon, 01 Nov 2010 20:34:44 GMT

David,

No, if you are not adding your graphics in code then you will just have to climb up the parent object with your click event so on mouseDown check to see if it is a customSprite and if it is then do event.currentTarget.parent instead.

Re: MouseDown on GraphicsLayer with custom Renderer

DavidElies — Mon, 01 Nov 2010 20:42:30 GMT

Thanks so much. That got me what I was looking for. I didn't event realize that the parent attribute existed.

Re: MouseDown on GraphicsLayer with custom Renderer

DasaPaddock — Mon, 01 Nov 2010 20:47:21 GMT

You could also set mouseChildren to false on the Graphic.

Re: MouseDown on GraphicsLayer with custom Renderer

DavidElies — Mon, 01 Nov 2010 20:54:38 GMT

You could also set mouseChildren to false on the Graphic.

Thanks for your response.

I was trying to set mouseChildren on the Graphic, but I couldn't get access to it, since the graphicAdd event was never fired. I don't know why this is. The GraphicsLayer's dataProvider is a QueryTask, and when the query returns, the graphics get updated, but no graphicAdd events.

Re: MouseDown on GraphicsLayer with custom Renderer

DasaPaddock — Mon, 01 Nov 2010 22:03:04 GMT

You can loop through the graphics in the feature set instead.

Re: MouseDown on GraphicsLayer with custom Renderer

DavidElies — Wed, 03 Nov 2010 17:49:55 GMT

Thanks! I might try that.