Form Validation

[gwilburn]

We have a form that is displayed upon clicking a grid row. Several form fields are "editable". I only want to validate the fields that are changed by the user. However, I can't seem to recall how to determine that.

I'm currently validating in the RPG button program using vvNabBtn. In the vvNabTmpl tools there is a procedure isChanged(). But that is not available.

What's the best approach here?

[sean.lanktree]

This is not available in your scenario. The "isChanged" procedure is used within the EXNABVAL (edit grid) based programs.

In your case, I would suggest the following:
Assuming you have a record behind the data in your form.

// retrieve the current values of the record...
//
lMyId = GetFormChar('MYID');
exec sql select * into: lMyRecord from myFile where myId =: lMyId;

if GetFormChar('SOMEFIELD') <> lMyRecord.SOMEFIELD;
  // validate...
endif;

[gwilburn]

Thanks Sean... so within NAB we don't know if a user modifies a specific form field?

[sean.lanktree]

Only with the built in editing of the edit grid.

[gwilburn]

Thanks! This worked like a charm