Subject Re: replace command From Ken Mayer <dbase@nospam.goldenstag.net> Date Sat, 1 May 2021 13:26:13 -0700 Newsgroups dbase.getting-started On 5/1/2021 1:21 PM, Gaetano D. wrote: > On 2/05/2021 1:44, Mervyn Bick wrote: >> On 2021/05/01 11:40, Gaetano D. wrote: >> >>> I just tried an entryfield inside a container object, and it does >>> understand "form.rowset". I am lost now... I thought that direct >>> parenthood was the dividing line... but obviously not. Since "this" >>> means the entryfield in the entryfield's onChange event, and >>> this.parent is the container, how does this entryfield inside the >>> container know about the form object? >> >> I can't replicate this. >> >> In the attached example the entryfield's onChange event handler has no >> problem writing to the form's rowset. >> >> Mervyn. > > that is what I was saying: "it DOES understand" :) > > I wonder why this awareness of the form could not be extended to the > rowset "branch", after all the rowset is attached to a query that is > attached to the form... I get that it works, but I don't get why it > doesn't work for rowsets because they are attached to the form in the > same way (as far as I can tell...). The reasoning is that the data objects may be instantiated from a datamodule, which might be in use in multiple forms (and/or reports), may be instantiated in a program that calls a form, and so on. They don't know what the form is for that reason. There are of course ways to deal with that, applying a custom property to a query (or rowset), but ... Ken -- *Ken Mayer* Ken's dBASE Page: http://www.goldenstag.net/dbase The dUFLP: http://www.goldenstag.net/dbase/index.htm#duflp dBASE Books: http://www.goldenstag.net/dbase/Books/dBASEBooks.htm dBASE Tutorial: http://www.goldenstag.net/dbase/Tutorial/00_Preface.htm dBASE Web Tutorial: http://www.goldenstag.net/dbase/WebTutorial/00_Menu.htm