If first click add button, then form with 'add record' will show,

then click edit button, 'add record' caption still remains.

If first click edit button then 'edit record' always will be in a caption.

In 'first click' I mean click right after grid load on navgrid toolbar buttons.

'addCaption' and 'editCaption' the same behavior

Another words, caption of formedid dialog not changes after it first initialization