Documents Update method and datasources

Question

Hi all,
I ve done a piece of code for updating an UDF at level line of an order when a target delivery is added. The update must be done when BeforeAction is true. This way when the user adds a new delivery, the code will update the lines of the base orders (base order of each line) and after that BO will do its updates (like closing the line if it's nedeed). For doing this i use the datasources of the form for reading the intformation, due to BeforeAction is true and the actual document is not still added. The problem is that the update method (of the order) doesn`t finish and i don`t receive any exception. Other way, if i don´t use the datasources for reading the information (if i do it using UI API), the update method works well. This is the method using DataSource:
        private void updatePiezasPtesDs(string formUid, string nombreTabla)
            Form form = kernel.Application.Forms.Item(formUid);
            try
                Matrix mtx = form.Items.Item("38").Specific as Matrix;
                DBDataSource ds = form.DataSources.DBDataSources.Item(nombreTabla);
                for (int i = 0; i < mtx.VisualRowCount; i++)
                    mtx.GetLineData(i + 1);
                    if ((ds.GetValue("BaseEntry", 0) != null) &&  //IF THIS LINE HAS BASE DOCUMENT
                        (ds.GetValue("BaseEntry", 0).Length > 0))
                        int baseEntry = int.Parse(ds.GetValue("BaseEntry", 0).ToString().Trim());                   
                        if (baseEntry > 0)
                            Documents docOrigen = kernel.getDoc(baseEntry, BoObjectTypes.oPurchaseOrders, kernel.Company); //GET THE BASE DOCUMENT OF THIS LINE
                            int baseLine = int.Parse(ds.GetValue("BaseLine", 0).ToString().Trim());
                            if (!esBaseCero(baseEntry, "POR1"))
                                baseLine--; //IF THE BASE DOCUMENT WAS DUPLICATED, THE BASE INDEX WILL BE 1 INSTEAD OF 0
                            docOrigen.Lines.SetCurrentLine(baseLine);
                            double oldValue = Convert.ToDouble(docOrigen.Lines.UserFields.Fields.Item("U_ITOP_PiezasOpenQty").Value.ToString().Trim().Replace(".", ","));
                            double recibido = Convert.ToDouble(ds.GetValue("U_ITOP_PiezasQty", 0).ToString().Trim().Replace(".", ","));
                            double newValue = oldValue - recibido;
                            docOrigen.Lines.UserFields.Fields.Item("U_ITOP_PiezasOpenQty").Value = (newValue > 0) ? newValue : 0;
                            int error = docOrigen.Update();  //THIS METHOD DOESN`T FINISH
            catch (Exception ex)
                kernel.Application.MessageBox(ex.Message, 0, "", "", "");
I tried to chek the last error after update method but the method doesn`t finish.
Other way, when i read the information by accesing directly to the cells of the matrix:
                    int baseEntry = int.Parse((mtx.Columns.Item("45").Cells.Item(i + 1).Specific as EditText).Value.Trim());                
                        double oldValue = Convert.ToDouble(docOrigen.Lines.UserFields.Fields.Ite("U_ITOP_PiezasOpenQty").Value.ToString().Trim().Replace(".", ","));
                        double recibido = Convert.ToDouble((mtx.Columns.Item("U_ITOP_PiezasQty").Cells.Item(i + 1).Specific as EditText).Value.Trim().Replace(".", ","));
                        double newValue = oldValue - recibido;
                        docOrigen.Lines.UserFields.Fields.Item("U_ITOP_PiezasOpenQty").Value = (newValue > 0) ? newValue : 0;
                        int error = docOrigen.Update();
It works well!!. I don´t know if i`m losing something but AFAIK the best way for reading the information of the actual form is using its datasources. Please if someone knows something about this it will be very helpful for me.
Thanks,
Edited by: Nauzet Diaz on Jul 29, 2008 11:46 AM
Edited by: Nauzet Diaz on Jul 29, 2008 12:32 PM

Answer 1

Hi all,
i'm still having problems with dbdatasources and update documents. I've written this in FormDataEvent
           //UiApp_FormDataEvent
            if ((BusinessObjectInfo.FormTypeEx.Equals(FORM_PEDIDOCOMPRAS)) &&  //PURCHASE ORDERS
                (BusinessObjectInfo.EventType.Equals(BoEventTypes.et_FORM_DATA_UPDATE)) &&
                (BusinessObjectInfo.BeforeAction))
                  procesarModificaciones(form);  //"form" ORIGINATED THE EVENT
The method procesarModificaciones(Form form) is:
       private void procesarModificaciones(Form form)
            DBDataSource ds = form.DataSources.DBDataSources.Item("OPOR");
            int docEntry = int.Parse(ds.GetValue("DocEntry", 0).Trim());
            Documents doc = kernel.Company.GetBusinessObject(BoObjectTypes.oPurchaseOrders) as Documents;
            doc.GetByKey(docEntry);
            Matrix mtx = form.Items.Item("38").Specific as Matrix;
            try
                ds = form.DataSources.DBDataSources.Item("POR1");
                for (int i = 0; i < doc.Lines.Count; i++)
                    doc.Lines.SetCurrentLine(i);
                    string itemCodeObj = doc.Lines.ItemCode;
                    int order = doc.Lines.VisualOrder + 1;
                    mtx.GetLineData(order);
                    string itemCodeForm = ds.GetValue("ITEMCODE", 0).Trim();
            catch (Exception ex)
                kernel.Application.MessageBox(ex.Message, 0, "", "", "");
I'm only exploring the business object (documents) order and the form at the same time. But this code throw this error (no sense):
"Another user-modified table budget OBGT (ODBC 2039) Message 131-283"
I've not used the table budget.
I think that the problem is related with mtx.GetLineData() because when i comment the line the error doesn't appear but, of course, the method doesn't work properly. It seems like some transaction doesn't finish and the update doesn't work due to that.
The same code using UI API instead of DbDataSources works well again:
        private void procesarModificaciones(Form form)
            DBDataSource ds = form.DataSources.DBDataSources.Item("OPOR");
            int docEntry = int.Parse(ds.GetValue("DocEntry", 0).Trim());
            Documents doc = kernel.Company.GetBusinessObject(BoObjectTypes.oPurchaseOrders) as Documents;
            doc.GetByKey(docEntry);
            Matrix mtx = form.Items.Item("38").Specific as Matrix;
            try
                ds = form.DataSources.DBDataSources.Item("POR1");
                for (int i = 0; i < doc.Lines.Count; i++)
                    doc.Lines.SetCurrentLine(i);
                    string itemCodeObj = doc.Lines.ItemCode;
                    int order = doc.Lines.VisualOrder + 1;
                    string itemCodeForm = (mtx.Columns.Item("1").Cells.Item(order).Specific as EditText).Value.Trim();
            catch (Exception ex)
                kernel.Application.MessageBox(ex.Message, 0, "", "", "");
Using UI API always for reading information from forms is not a good programming practice then help please,
Regards.