LineSymbol SetValue

Greetings,

 

I am using the Geocortex Workflow in Silverlight.

 

I have a number of layers that are not returning the correct symbology value. I only get the blue layer returned, not green or red??

 

I am trying to set the value in Geocortex using:

 

current = graphicsLayer.SetValue(ESRI.ArcGIS.Client.Symbols.SimpleLineSymbol(#11a9ec1)

 

What is wrong with the code above??

 

I would appreciate any assistance.

 

Regards,

 

Clive