RE: Editable Grid Validation

nanfak — Mon, 27 Apr 2020 22:50:34 GMT

Thanks Peter.

RE: Editable Grid Validation

Peter Lewis — Mon, 27 Apr 2020 21:44:52 GMT

The easiest way is just to add a validation to the validation parameter in your grid. Suppose you are saving the data of your grid into a local variable called local!rows. The following validation would ensure they must add at least one row:

if(
  or(
    isnull(local!rows),
    length(local!rows)<1
  ),
  "Please add at least one row",
  null
)

You could potentially do the same for the maximum number - just check the length against a maximum value.

I'd also suggest thinking about the best user experience for your users. If they are required to enter at least one row, should you start with a row already added (with maybe a few suggested values)? Or if you want to limit the number of rows, maybe you should hide the "Add Row" link after they have reached a certain number of rows. Validations are usually the easiest but may not be the best experience.