Hi, everyone! I added a row to my table with field ID=1. ID field is a primary key and not nullable. Anyway in debugger I see that my ID has value 1, but IsNull is set to true. I thing it's a bug. Sencerely, Ilona Karpova. --- Новые интернет-магазины ТУТ: бытовая техника, цифровые камеры, бельё и одежда. Приятных покупок на http://shop.tut.by