Try
ds.Clear()
ada = New SqlDataAdapter("Select SubjectCode'Subject Code',SubjectName'Subject Name',SubjectType'Subject Type',UserId'User Id',Password from ProgramDetails.Subjects", cn)
ada.Fill(ds, "ProgramDetails.Subjects")
cmd = New SqlCommand("Select SubjectCode'Subject Code',SubjectName'Subject Name',SubjectType'Subject Type',UserId'User Id',Password from ProgramDetails.Subjects", cn)
ada.SelectCommand = cmd
ada.Fill(ds)
GridView1.DataSource = ds.Tables(0)
GridView1.DataBind()
Catch ex As Exception
End Try