Delete row matrix in UDO Form

Question

Hi All,
I've created a simple form based on an registered UDO (2 tables: Document and Document Lines).
This form contains a matrix bounded to the lines of my UDO document.
Everything works fine except the Delete button that should delete a document line in the matrix: it never
deletes the lines from database, although it deletes them from the form. But if I select again the same
record, the deleted line is show again!
My code is very simple:
void btRemove_ClickEvent()
     // Remove selected row from Matrix
     SAPbouiCOM.Matrix oMatrix = (SAPbouiCOM.Matrix) oForm.Items.Item("mxMatrix").Specific;
     int iPos = oMatrix.GetNextSelectedRow( 0, SAPbouiCOM.BoOrderType.ot_RowOrder );
     if( iPos > -1 )
          oMatrix.DeleteRow( iPos );
          oMatrix.FlushToDataSource();
          oForm.Update();
What is the problem with my code? Is it missing something?
Regards,
Manuel Dias

Answer 1

Thanks Gianluigi,
By the way, I want to delete the Matrix line with DI API has you suggest, so I was thinking in using this code:
     SAPbobsCOM.UserTables pUT = Main.oSBOCompany.UserTables;
     SAPbobsCOM.UserTable dt = pUT.Item("@PDWC_LINE");
     bool xx = dt.GetByKey( sKey );
     int res = dt.Remove();
The problem is that UserTable object, has a GetByKey() method that works only for user tables whose PK
contains only one column (GetByKey requires only a single value).
Since my table is created in SBO with the UDO Document Lines template, the PK is composed automatically
by Code and LineId columns, so the GetByKey() method does not allow me to select a specific record in
order to delete it next.
Do you know any workaround for this? Of course I could user the Recordsed object and write SQL to
delete my table line, but I think it must be an esay way to do this....
Regards,
Manuel Dias