Problem with freeze on Document forms

Question

Hi all,
i've a problem with freeze on document's forms (like invoice) when i make changes on matrix.
For example i've an addon that calculate discounts for items and update the information in the matrix. But when I update the info in the Matrix I see the cursor run across the matrix.
This create two problems. The first one is the orrible aspect that the operation assume, the second is that sometimes some cells turn to black and remain ofthis color.
Can someone help me?
Here I post a piece of my code:
    Dim oForm As SAPbouiCOM.Form = SBOApplication.Forms.Item(FormUID)
    Dim oMatrix As SAPbouiCOM.Matrix = oForm.Items.Item("38").Specific
    Dim oRefLine As Integer = 0
    oForm.Freeze(True)
    Dim Cnt As Integer = 1
    Try
      While Cnt <= oMatrix.RowCount
        If oMatrix.Columns.Item("U_RefLineId").Cells.Item(Cnt).Specific.Value <> "" Then
          Dim apDouble As Double = oMatrix.Columns.Item("15").Cells.Item(Cnt).Specific.Value.ToString.Replace(".", ",")
          If apDouble <> 100 Then
            SetMatrixValue(oMatrix, "U_RefLineId", Cnt, "")
            SetMatrixValue(oMatrix, "11", Cnt, oMatrix.Columns.Item("U_OrigQtyMN").Cells.Item(Cnt).Specific.Value)
            SetMatrixValue(oMatrix, "U_OrigQtyMN", Cnt, 0)
            Cnt = Cnt + 1
          Else
            oMatrix.Columns.Item("15").Cells.Item(Cnt).Click()
            SBOApplication.ActivateMenuItem("1293")
          End If
        Else
          SetMatrixValue(oMatrix, "15", Cnt, 0)
          Cnt = Cnt + 1
        End If
      End While
    Catch ex As Exception
      SBOApplication.StatusBar.SetText("Error: " & ex.Message, SAPbouiCOM.BoMessageTime.bmt_Short, SAPbouiCOM.BoStatusBarMessageType.smt_Error)
    End Try
    oForm.Freeze(False)

Answer 1

Hi Daniele,
I use a little different approach because the Freeze on a Form is like parenthesis on formula. You must be sure that the Freeze(true) are balanced by a Freeze(false).
So my pattern is:
Try
    oForm.Freeze(True)
    ' the operation you need to do with the freezed form
Catch Ex as Exception
    ' Menage the errors here
Finally
    oForm.Freeze(False)
End Try
The Finally statement is executed in both case when an Exception is raised or when the code is right executed.
But I think this is not the problem in your code.
If you still having problem, probably we need to examine your sub-routine "SetMatrixValue".
It is also important to know your SAP Business One version because in the past there was a version with a problem in the refresh of matrix.
I use SAP Business One 2007A SP01 PL06 HF1 and I do not have problem with the freezing.
Hope it helps.
Carmine