Problem in Matrix column -- ChoosefromList

Question

Hello
    I created a user defined form with matrix of  4  column .Column No:3 is of type ChoosefromList. When the single row of the matrix is filled with  the values  ChoosefromList (Column.No:3) is working good. 
     When multiple rows are filled in matrix  say 1,2,3,4,5 .After filling the  5 rows ,if i want to change value of the 2nd row  column no:3 (where i used choosefrom list),the newly selected value from the ChoosfromList get displayed in the 5 th row column no:3.
    The following is the code snippet :
If (pVal.ColUID = "DNGLANo") Then
                If pVal.EventType = SAPbouiCOM.BoEventTypes.et_CHOOSE_FROM_LIST Then
                    Dim oCFLEvento As SAPbouiCOM.IChooseFromListEvent
                    oCFLEvento = pVal
                    Dim sCFL_ID As String
                    sCFL_ID = oCFLEvento.ChooseFromListUID
                    DNForm = SBO_Application.Forms.Item(FormUID)
                    Dim oCFL As SAPbouiCOM.ChooseFromList
                    oCFL = DNForm.ChooseFromLists.Item(sCFL_ID)
                    If oCFLEvento.BeforeAction = False Then
                        Dim oDataTable As SAPbouiCOM.DataTable
                        oDataTable = oCFLEvento.SelectedObjects
                        Dim val As String
                        Try
                            val = oDataTable.GetValue(0, 0)
                            DNEdTGLA = DNColumn12.Cells.Item(DNMatrix3.RowCount).Specific
                            DNEdTGLA.Value = val
                        Catch ex As Exception
                        End Try
                    End If
                End If
            End If

Answer 1

Since you mentioned matrix rowcount,  the CFL value is displayed in last row and hence replace matrix.rowcount with pval.row.
If (pVal.ColUID = "DNGLANo") Then
If pVal.EventType = SAPbouiCOM.BoEventTypes.et_CHOOSE_FROM_LIST Then
Dim oCFLEvento As SAPbouiCOM.IChooseFromListEvent
oCFLEvento = pVal
Dim sCFL_ID As String
sCFL_ID = oCFLEvento.ChooseFromListUID
DNForm = SBO_Application.Forms.Item(FormUID)
Dim oCFL As SAPbouiCOM.ChooseFromList
oCFL = DNForm.ChooseFromLists.Item(sCFL_ID)
If oCFLEvento.BeforeAction = False Then
Dim oDataTable As SAPbouiCOM.DataTable
oDataTable = oCFLEvento.SelectedObjects
Dim val As String
Try
val = oDataTable.GetValue(0, 0)
DNEdTGLA = DNColumn12.Cells.Item(pval.row).Specific
DNEdTGLA.Value = val
Catch ex As Exception
End Try
End If
End If
End If