Level of Programming Skills for Silverlight API

Question

I am trying to get a feel for the level of programming skills needed to work with the Silverlight API?  Is it feasible to expect a GIS professional with little programming background to learn C# to develop basic to moderate mapping applications?

JenniferNery · Answer

Yes that is very likely.

Be sure that the XAML Class definition,  <UserControl x:Class="  ArcGISSilverlightSDK.AddLayerDynamically"

matches the code-behind namespace and class definition namespace   ArcGISSilverlightSDK 
{  
 public partial class   AddLayerDynamically

AndrewHayden1 · Answer

Those are the samples I've been trying to do together in the same project.

I don't understand what the VB code behind is doing for the Dynamic layer.  When I run the project, only copying the XAML, the project runs fine.  When I duplicate the VB I get the following error at InitializeComponent():

" 'InitializeComponent' is not declared. It may be inaccessible due to its protection level."

It looks like the problem is related to the Namespace, but I don't understand it.

JenniferNery · Answer

These samples have corresponding VB code. http://help.arcgis.com/en/webapi/silverlight/samples/start.htm#MouseCoords
http://help.arcgis.com/en/webapi/silverlight/samples/start.htm#AddLayerDynamically

Were you trying to do both?

If you merged the two samples and the Map does not contain any layer, it's Extent must still be null unless you've set it already. You can see this check in the MouseMove event handler. It is therefore only after a layer has been added that screen and map coordinates  are retrieved.

Also while your mouse is over another control, like the grid that contains TextBlock for adding URL and Button to add the layer, Map MouseMove will not fire. I'm not sure if you were expecting the screen and map coordinates to be updated then.