How to enable a field in case of multiple selection in a grid from X++

If you have TabPages in your form you can use this functionality in the overrided method "pageActivated"

For example in your TabPage you have a checkBox to disable in case of multiple selections.

then you can use this code for example

 c = 1;

 Heade_family.enabled(true);
      for(Employee = PayrollEmployee_ds.getFirst(true)?PayrollEmployee_ds.getFirst(true):PayrollEmployee_ds.cursor();Employee;Employee=PayrollEmployee_ds.getNext())
    {
         if(c>1)
         {
              Heade_family.enabled(false);
              break;
         }

        else

         {

              // write your code here

         }

       c++;

    }

Happy Daxing !