I have a c# Winforms app with a datagridview that has five columns. The second column is defined in Visual Studio as a DataGridViewImageColumn. In a test application, the attached code works fine. When I integrated the code into a large complex program,the datagrid display shows nothing in the 2-5 cols. I have verified by looking into the datagrid row values under debug mode that all the information is in the datagrid cells properly so this really is just a display issue.