How to use Form Data source Activeted method in D365

Here i am going to write code in Active event of form-> data source.

SalesTable-> DS->salesLine-> event-> copy event of Activated.

1. create class.
2. paste copied event in class.
3. class Data source by

        FormDataSource      fds = sender.formRun().dataSource("SalesLine");

        SalesLine           salesline = fds.cursor();

4. put logic according you.

       

class Aks_SODSSLActivated

{

   

   

    /// <summary>

    ///

    /// </summary>

    /// <param name="sender"></param>

    /// <param name="e"></param>

    [FormDataSourceEventHandler(formDataSourceStr(SalesTable, SalesLine), FormDataSourceEventType::Activated)]

    public static void SalesLine_OnActivated(FormDataSource sender, FormDataSourceEventArgs e)

    {

       

        real                             Amount,amt1;

        Tax                              tax;

       

      

        FormDataSource      fds = sender.formRun().dataSource("SalesLine");

        SalesLine           salesline = fds.cursor();

       

       

        if(salesline.LineDisc > 0 || salesline.LinePercent >0)

        {

            fds.object(fieldNum(SalesLine,Aks_givenDiscount)).allowEdit(false);

          

            salesline.Aks_givenDiscount =0;

        }

         

        else

        {

          

            fds.object(fieldNum(SalesLine,Aks_givenDiscount)).allowEdit(true);

        }

      

            }

}

Thanks
Akshay