Why a dummie DataColumn is automatically created in my DataTable?

Question

Hello

 

I dragged and drop a table from the Server Explorer; as excepted, a TableAdapter is created. The table has the simple structure (#ID smallint identity, Name varchar(15)). When I configured the TableAdapter, a new column called ID1 is created. If I delete the column, updating throws an error. Why?

 

Thanks a lot.