[Axapta-Knowledge-Village] how to set focus on a field in a dialog box?

[bryanevil]

Hi everyone,

  How do I set focus on a field in a dialog ? my dialog got 2 fields -
dialogPallet and dialogLocation. What i try to do is when I hit OK
button and if the dialogLocation textbox is empty, set focus on the
dialogLocation text box. my code look like:

if(!location){
            
this.dialog().formRun().design().controlName("dialogLocation").setFocus();

}

I got error : FormRun object not initialised

Can anyone help me on this? it is an urgent question. Thanks