Re: Fast way to highlight a listbox entity selection

2019-04-17 Thread Keith Culotta via 4D_Tech
Hi JPR, Fuzziness is a good description, but things stand in sharper relief today. I was more focused on the syntax than the mechanics and for no particular reason started out with collections. Converting the app to an entity selection approach is turning out to be much easier than expected,

Re: Fast way to highlight a listbox entity selection

2019-04-16 Thread JPR via 4D_Tech
[JPR] Hi Keith, a) It seems that there is some fuzziness in the way Entity Selections and Collections are understood. Let's try to make it more precise: - An Entity selection doesn't 'contain' the Entities, it's a List of Entity References (in this case, a reference is a 4D internal référence

Re: Fast way to highlight a listbox entity selection

2019-04-16 Thread Kirk Brooks via 4D_Tech
Bingo. On Tue, Apr 16, 2019 at 11:53 AM Keith Culotta via 4D_Tech < 4d_tech@lists.4d.com> wrote: > It's looking like it can all be done with entity selections, and be more > efficient. > -- Kirk Brooks San Francisco, CA === What can be said, can be said clearly, and what

Re: Fast way to highlight a listbox entity selection

2019-04-16 Thread Keith Culotta via 4D_Tech
Kirk, Interesting stuff, especially how entitySelection.toCollection duplicates data. I'm currently displaying collections in the listbox. It's looking like it can all be done with entity selections, and be more efficient. Thanks, Keith - CDI > On Apr 16, 2019, at 12:53 PM, Kirk Brooks via

Re: Fast way to highlight a listbox entity selection

2019-04-16 Thread Kirk Brooks via 4D_Tech
Keith, You know you can go about this from another point of view. I actually posted about this a bit ago. This won't accomplish exactly what you are asking for but it may be something you can use. First, remember that even when you have a very large collection or entity selection, as you seem to,

Re: Fast way to highlight a listbox entity selection

2019-04-16 Thread Keith Culotta via 4D_Tech
Douglas, That seems promising. Since the listbox is a collection/entity selection, each row's color would be set by the rows presence in the "Selected items" collection. I imagine the performance would be OK as long as the search only took place as the row becomes visible to the User.

Re: Fast way to highlight a listbox entity selection

2019-04-16 Thread Kirk Brooks via 4D_Tech
All, I just started a Feature Request for this: http://forums.4d.com/Post//29409213/1/ Take a look and see what you think. Collection/entity based listboxes are a very different animal from array or selection based ones. And the way to work with them is different too. Frankly the easiest thing

Re: Fast way to highlight a listbox entity selection

2019-04-16 Thread Keith Culotta via 4D_Tech
Checking the listbox's Property "Hide extra blank rows" stopped 4D from unexpectedly quitting when using LISTBOX SELECT ROW(*;"valsBox";0;lk replace selection) // and it's fast or just having a lot of rows to highlight in a loop. The crashing showed up more often in compiled mode before

Re: Fast way to highlight a listbox entity selection

2019-04-16 Thread Douglas von Roeder via 4D_Tech
Keith: How about this - rather than change the highlight, what about just changing the color of the rows to mimic that they’re selected? You can still maintain array of record numbers/ID’s that represent the selection but just update the UI so that it looks like the rows are selected. My

Re: Fast way to highlight a listbox entity selection

2019-04-16 Thread Keith Culotta via 4D_Tech
Justin, Thank you for the suggestion. I switched the deselect-all code to LISTBOX SELECT ROW(*;"valsBox";1;lk replace selection) LISTBOX SELECT ROW(*;"valsBox";1;lk remove from selection) and the selection did clear, however as soon as this add-to-selection code is executed

Re: Fast way to highlight a listbox entity selection

2019-04-15 Thread Justin Carr via 4D_Tech
On 16 Apr 2019, at 5:04 am, Keith Culotta via 4D_Tech <4d_tech@lists.4d.com> wrote: > > Hello, > > I'm looking for a fast way to highlight a selection of rows in an entity > selection listbox. The way I am aware of works OK unless the listbox gets a > large number of rows. > > Adding

Fast way to highlight a listbox entity selection

2019-04-15 Thread Keith Culotta via 4D_Tech
Hello, I'm looking for a fast way to highlight a selection of rows in an entity selection listbox. The way I am aware of works OK unless the listbox gets a large number of rows. Adding records to the Selected Items name in the Property list does not highlight the listbox contents. The