Hi Joe, You can trigger the code in the Valid event of the Combobox. Ted has frequently said that events should call methods. The Valid event may only have one line of code in it. ThisForm.PopulateLevelTwo()
When the combobox is configured as a DropDown list the user may be more keyboard focused, and type to get to the selection. The Valid may fire for each keystroke. This is when you might consider using the LostFocus event to prevent heavy IO related code. Or what I consider might be one good use of a timer, the timer is enabled and reset each time Valid fires. The Timer code will verify it is enabled, then disable itself, then call the population code. If you can avoid using a timer, I would. They can stack up and get triggered multiple times. HTH, Tracy -----Original Message----- From: ProfoxTech [mailto:profoxtech-boun...@leafe.com] On Behalf Of Joe Yoder Sent: Friday, May 21, 2021 3:37 PM To: profoxt...@leafe.com Subject: Re: Navigating structure using list boxes? Thanks for the reply Tracy, I think the simplest way to fill the list in a combo box will be to use a series of arrays that get updated as each choice is made. I am trying to figure out where in the code to place the select to array statement so that the combo box can find ithe array Maybe you have a better approach. Thanks, Joe On Wed, May 19, 2021 at 7:13 PM Tracy Pearson <tr...@powerchurch.com> wrote: > Looking at what you have I would consider using a series of drop downs for > each part. > If you only have three parts to the location you can setup the selection > screen in advanced. > You can populate and enable the next combobox quickly. > If each subset could have additional subsets, you may need to add or show > things dynamically. > > If you feel the two click method for each part isn't what you want, you > could use a series listboxes going to the right for each part. > > The other might be an <<shudder>> ActiveX control. The ProjectExplorer > project Doug Hennig has made available uses the TreeView ActiveX control. > https://github.com/DougHennig/ProjectExplorer > > > HTH, > Tracy > > -----Original Message----- > From: ProfoxTech [mailto:profoxtech-boun...@leafe.com] On Behalf Of Joe > Yoder > Sent: Wednesday, May 19, 2021 6:41 PM > To: profoxt...@leafe.com > Subject: Navigating structure using list boxes? > > I am an infrequent user of VFP and have never mastered the GUI. > > > I need to allow a user to choose storage locations from the structure below > for several fields on a screen where the possible choices are in a > structure several layers deep. > > > Is there a control to handle this or a simple way to roll my own? > > > This is a simple representation of the locations to chose from.: > > Shop/Cabinet/Shelf1 > > Shop/Cabinet/ Drawer1 > > Shop/Bench/Shelf1 > > Office/Bench/Drawer1 > > Office/Cabinet/ Drawer1 > > Office/Cabinet/Shelf1 > > Office/Bench/Shelf1 > > Office/Bench/Drawer1 > > Trailer/Bench/Drawer1 > > Trailer/Cabinet/ Drawer1 > > Trailer/Cabinet/Shelf1 > > TrailerBench/Shelf1 > > Trailer/Bench/Drawer1 > > Even though the Drawers and Shelves appear to repeat they are all different > and can add up to 150 choices for a location in my office. I clearly do > not want to scroll through the entire list to make a choice. > > > Any help would be appreciated. > > > Thanks in advance, > > > Joe > > > --- StripMime Report -- processed MIME parts --- > multipart/alternative > text/plain (text body -- kept) > text/html > --- > [excessive quoting removed by server] _______________________________________________ Post Messages to: ProFox@leafe.com Subscription Maintenance: https://mail.leafe.com/mailman/listinfo/profox OT-free version of this list: https://mail.leafe.com/mailman/listinfo/profoxtech Searchable Archive: https://leafe.com/archives This message: https://leafe.com/archives/byMID/005d01d74e7d$d2e23e80$78a6bb80$@powerchurch.com ** All postings, unless explicitly stated otherwise, are the opinions of the author, and do not constitute legal or medical advice. This statement is added to the messages for those lawyers who are too stupid to see the obvious.
