MaterialCheckedListBox not clearing displayed items

[TomsDev67]

Hello,

I've added a MaterialCheckedListBox in my UI. After that I've added some items in it. And when I want to clear the list to feed it with some other items, nothing happens in the UI. materialCheckedListBoxRights.Items.Clear(); In code, "Items" is really cleaned in my case from 17 objects to 0.

[leocb]

Hi, thanks for reporting. This sounds like an visual glitch, could you please do some tests and report back? I'm little short on time to test this myself 😢

clone the project and add the .cs file to your solution and then change the reference, then, while in debug mode, please do the following:

• If you clear it and then inspect the items property of the listbox, does it still shows the items in the array?
• Does the buttons still works? can you click them? do events fire?
• Does calling materialCheckedListBoxRights.Refresh() after clearing fixes it?
• Does removing a single item works?

[TomsDev67]

I'll do some tests a bit later, that's not a problem for me ;-) I'll keep you informed 👍

[leocb]

Hi @TomsDev67, did you figure this one out?

[TomsDev67]

Hey @leocb, Sorry for late answer, I had to work on some other things since the last time, I had no really time to check :-S

[changuyen78]

I have the same problem. The materialCheckedListBoxRights.Refresh() does not work. Hope you can fix or have work-around solution. Thanks

[information-security]

Hi, thanks for reporting. This sounds like an visual glitch, could you please do some tests and report back? I'm little short on time to test this myself 😢

clone the project and add the .cs file to your solution and then change the reference, then, while in debug mode, please do the following:

• If you clear it and then inspect the items property of the listbox, does it still shows the items in the array?

The items property will be cleared correctly

• Does the buttons still works? can you click them? do events fire?

Yes the events are still fired

• Does calling materialCheckedListBoxRights.Refresh() after clearing fixes it?

No it has no effect. Calling .Update() didn't fix the problem either.

• Does removing a single item works?

Yes it actually worked.

So for now, I used the following code as a temporary measure to workaround this issue:

while (clbReportHistory.Items.Count > 0)
    clbReportHistory.Items.Remove(clbReportHistory.Items[0]);

@leocb if don't have enough time, I can help by submitting a PR if you just direct me to the portion of the code that you are suspicious about.