I don't used DataBind instead:
Dim oMatrix As SAPbouiCOM.Matrix
Dim oVMWTotal As Double
oMatrix = frmDelivery.Items.Item("39").Specific
For oLines As Integer = 1 To (oMatrix.RowCount - 1) Step 1
oVMWTotal = oMatrix.Columns.Item("U_APP_VMW").Cells.Item(oLines).Specific.Value
Next
Regards,