hi can any one show some example how to fill combobox using dataset
i used this:

ds_code = general.ExecuteDataset(con, "HRUser_sprollcodeselect")
Dim i As Integer = ds_code.Tables(0).Rows.Count
HRUser_cmb_rollcode.DataSource = ds_code.Tables(0)
HRUser_cmb_rollcode.DisplayMember = "roll_code"

but i couldn't get i am getting system.data.datarowview,can any one help me please