How to use Field Modified in Datasource in ax D365

How to use Field Modified in Datasource in ax D365

Here we are going to use Modified in item field in form datasource. 

form-> salestable -> Ds-> salesline -> itemid-> event-> modified -> copy event.

create new class

Paste event in this class

Call  datasource.

 FormDataSource      SalesLine_ds   = sender.dataSource();

 SalesLine           SalesLine      = SalesLine_ds.cursor();

class Aks_NetAmtBasedonGivenDisc

{

   

       [FormDataFieldEventHandler(formDataFieldStr(SalesTable, SalesLine, ItemId), FormDataFieldEventType::Modified)]

    public static void ItemId_OnModified(FormDataObject sender, FormDataFieldEventArgs e)

    {

        EcoResCategory                   ecoResCategory;

        InventTable                      inventTable;

        EcoResProductCategory            ecoResProductCategory;

        EcoResCategoryHierarchy          ecoResCategoryHierarchy;

        InventOnhand                     inventOnHand;

        InventDimParm                    inventDimParm;

        InventQty                        availQty;

        InventDim                        inventdim;

        //ItemId                           itemid;

        SalesTable                       salestable;

        real                             Amount,amt1;

        Tax                              tax;

      

        FormDataSource      SalesLine_ds   = sender.dataSource();

        SalesLine           SalesLine      = SalesLine_ds.cursor();

        ItemId              ItemId         = sender.getValue(0);

   

        select InventTable

            where inventTable.ItemId == ItemId;//SalesLine.ItemId;

          

        while select ecoResProductCategory

            where ecoResProductCategory.Product == inventTable.Product

           join ecoResCategoryHierarchy

            where ecoResCategoryHierarchy.RecId == ecoResProductCategory.CategoryHierarchy

           && ecoResCategoryHierarchy.Name == "Retail Product Category"

        {

            select ecoResCategory

                where ecoResCategory.RecId == ecoResProductCategory.Category;

           

            SalesLine.God_AllowedDiscount = ecoResCategory.GOD_AllowedDiscount;

        }

        Amount = Tax::calcTaxAmount(SalesLine.TaxGroup,SalesLine.TaxItemGroup,systemDateGet(),SalesLine.CurrencyCode,SalesLine.LineAmount,TaxModuleType::Sales);

     

        SalesLine.Aks_TotalAmoutWithVAT = SalesLine.LineAmount + Amount;

 

    }

 }

Thanks
Akshay