ListBoxAssist.IsToggle - Ensure last clicked item is always selected #3349
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| This works, and I get that in most cases we probably expect the radio button group style behavior, but I am wondering if a better fix. But I am thinking there are cases where "none" would be valid. I am thinking we might want to allow that case to still exist but have this be the default. |
If you read the issue, you will see I had the same concern. So do we need an AP to allow the none case then? EDIT: I have added the AP and updated the PR. |
Default behavior is now changed so the selected item can not be deselected. Setting this new AP will allow it, basically falling back to the old default behavior.
nicolaihenriksen added demo app 
Keboo approved these changes Oct 29, 2023
| Yea something like that looks good to me. |
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Fixes #3235
As the last comment in the issue states, when explicitly applying
ListBoxAssist.IsToggle=true, the expected behavior is most likely that the items should behave similar to a radio button group. This ensures that the user cannot do anything to end up in a situation where no elements are selected. However, there are still no guards around selection being "removed" from code.To fix the latter part, we could attach a
PropertyChangedCallbackon theIsToggleDP, but we would probably also need to listen for changes in theListBox.Itemscollection which I think is probably taking it a step too far. If the developer explicitly setsListBoxAssist.IsToggle=true, let's assume that he/she also knows not to do anything weird.