I think it is Rowheader and there is some properties in datagridview property .

at the first time you should set your listbox datasourse it will be your table in your dataset and then set displayMember it will be the column name of the table it will be shown to user and then set valueMember it will be the column name that is not been shown to user .

I want to get tables Name in a Access (mdb) file and my quary is "select * from msysobject where type = 1 and flags = 0" but the exeption with the text " Records can not be read ; no permision on'msysobjects'" has happend please help me about this problem .

if you are inserting data by dataadaptor and you donot fill dataset after inserting it can be happen . so I think it is better you fill your dataset after per record inserting .

hello please help me how to set a combo box readonly so user couldnot write into combbox. thanks.