Hello, I am using VS 2005 Professional Edition and I want to modify a dataset (.xsd file) in the VS IDE. I have done this often and was thoroughly puzzled when I was informed I could not change the dataset's column type because there was data in the dataset! This is in the designer. Nothing is running in debug. What data is it taliking about? At what point are our datasets cast in stone? (I know that cannot be true). Thanks, MichaelK