I have been banging my head against this all afternoon and I came up with some other interesting facts.

Although I can drill down to ColP1's name in the debugger, the expression "THIS.ColP1.Name" cannot be evaluated.

Also there are some phantom columns grid when I drill down THIS in the debugger. These are columns that I eliminated several months ago. I cannot find them anywhere in the .VCX and they don't appear in the class designer. I have packed the class library and rebuilt the project. There are columns named Column1 thru Column18 and I have no idea where the debugger is getting this data. Perhaps if I knew where to eliminate this bad data, I could find the source of my difficulty.

Any clues would be appreciated.