How to get datasource on a listPage (ListPageInteraction class) in D365fo

 Hi guys, Today we see how to get datasource on a listPage (ListPageInteraction class) in D365fo. I got a requirement like I have to select multiple records. If the selected record type is different I have to disabled few buttons.

First I took the extension for the standard class and wrote the code in selectionChanged method.

    

[ExtensionOf(classStr(PurchReqCreatePurchListInteraction))]

public final class Test_PurchReqCreatePurchListInteraction_Extension

{

    public void selectionChanged()

    {

        next selectionChanged();

        ListPage        listPage = this.listPage();

        boolean         check = false;

        PurchReqLine    purchReqLine,activeRecord = listPage.activeRecord(tableStr(PurchReqLine));

        FormDataSource  purchReqLine_DS = FormDataUtil::getFormDataSource(purchReqLine);

        //   FormDataSource  purchReqLine_DS = listPage.activeRecord(queryDataSourceStr(PurchReqCreatePurch, 

                            //PurchReqLine)).datasouce(); 

                            //listPage.activeRecord(queryDataSourceStr(ReqTransPOListPage,ReqPO)).dataSource();

        // int selectedRows = purchReqLine_DS .recordsMarked().lastIndex();

        PurchReqTable   purchReqTable;

        ;

        if (activeRecord)

        {

            for (purchReqLine = getFirstSelection(purchReqLine_DS); purchReqLine; purchReqLine = purchReqLine_DS.getNext())

            {

                if (!purchReqTable)

                {

                    purchReqTable = purchReqLine.purchReqTable();

                }

                check = purchReqTable.Test_Type != purchReqLine.purchReqTable().Test_Type ? false : true;

                this.listPage().actionPaneControlEnabled(formControlStr(PurchReqCreatePurchListPage,

                                                PurchaseOrderMenuItemButton), check);

                this.listPage().actionPaneControlEnabled(formControlStr(PurchReqCreatePurchListPage,

                                                PurchAgreementGenerator), check);

                if (!check)

                {

                    break;

                }

            }

        }

    }

}

Keep Daxing!!