General failure with CFL

Question

Hello,
I have added a ChooseFromList in a matrix.
My CFL works well, but when I click on "select" to display the value in the matrix, I have a message saying "General Failure".
Aother problem is when I click on "Cancel" (in the CFL form) I have a message "Object reference not defined to an object instance".
If pVal.BeforeAction = False Then
            If FormUID = "CPM" Then
                oForm = SBO_Application.Forms.Item(FormUID)
                Select Case pVal.EventType
                    Case SAPbouiCOM.BoEventTypes.et_ITEM_PRESSED
                        If pVal.ItemUID = "ClassGen" Then
                            oForm.PaneLevel = 1
                        End If
                        If pVal.ItemUID = "ClassAbon" Then
                            oForm.PaneLevel = 2
                        End If
                        If pVal.ItemUID = "ClassStat" Then
                            oForm.PaneLevel = 3
                        End If
                        If pVal.ItemUID = "AjoutL" Then
                            oMatrix.AddRow()
                        End If
                        If pVal.ItemUID = "SupprL" Then
                            oMatrix.DeleteRow(oMatrix.GetNextSelectedRow())
                        End If
                    Case SAPbouiCOM.BoAppEventTypes.aet_ShutDown
                        System.Windows.Forms.Application.Exit()
                    Case SAPbouiCOM.BoEventTypes.et_CHOOSE_FROM_LIST
                        oDataTable = pVal.SelectedObjects
                        Try
                            oEdit = oMatrix.Columns.Item("Nom").Cells.Item(oMatrix.RowCount).Specific
                            val = oDataTable.GetValue("CardName", 0)
                            oEdit.Value = val
                            oEdit = oMatrix.Columns.Item("Mail").Cells.Item(oMatrix.RowCount).Specific
                            val = oDataTable.GetValue("E_Mail", 0)
                            oEdit.Value = val
                        Catch
                            SBO_Application.MessageBox(Err.Description)
                        End Try
                End Select
            End If
        End If
Do you know what my problem is ?
Thanks
Thibault

Answer 1

Here a sample (In C#)
if(pVal.ItemUID=="BOY_1" && pVal.EventType == BoEventTypes.et_CHOOSE_FROM_LIST) {
  ChooseFromListEvent cflEvent = (ChooseFromListEvent)pVal;
  string cflUID = cflEvent.ChooseFromListUID;
  if(!pVal.BeforeAction) {
    DataTable dt = cflEvent.SelectedObjects;
    if(dt!=null && dt.Columns.Count!=0 && dt.Rows.Count!=0) {
      string val = dt.GetValue("ItemCode",0).ToString();
      eventForm.DataSources.UserDataSources.Item("BOY_UDS1").ValueEx = val;
Also remember that you need alphanumeric datasources (CFL doens not work with not alpha types)
Message was edited by: Rasmus Jensen