>I need to chage line in a datagrid control.
>fo example i need to insert a value to the first colunm of every line.Anyone can help me?!?

You need to play with the Row property

With grdResult
    For intRow = 0 To .ApproxCount - 1
        .Columns(0).Value = intRow 'Your new value here
        On Error Resume Next
        .Row = .Row + 1
        On Error GoTo 0
    Next intRow
End With