in my asp.net+vb web there is a code as under
If dt1.Tables("PresentTotal").Rows(0).Item("C") Is System.DBNull.Value <> True Then
ctxt.Text = dt1.Tables("PresentTotal").Rows(0).Item("C")
Else
ctxt.Text = ""
End If
the script works fine for those peoples number is in that table
but when the number of that person is not there in tahat table then it gives error