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Setting Reader in C# produces Object Reference Error
posted

I was following the example at:

http://help.infragistics.com/Help/NetAdvantage/DV/2009.1/CLR3.5/html/SL_DV_xamWebMap_Displaying_xamWebMap_Using_Shapefiles.html

I get an "Object reference not set to an instance of an object" when I step through the code.  The error occurs when the statesLayer.Reader is set to the reader.

In C#:

ShapeFileReader reader = new ShapeFileReader();
reader.Uri = "Shapefiles/usa_st";

DataMapping.Converter converter = new DataMapping.Converter();
reader.DataMapping = converter.ConvertFromString("Caption=STATE_ABBR") as DataMapping;
statesLayer.Reader = reader;