Completed
Last Updated: 30 May 2022 09:14 by ADMIN
Release LIB 2022.2.530 (30 May 2022)
Mateusz
Created on: 20 Apr 2022 10:09
Category: MultiColumnComboBox
Type: Bug Report
1
MultiColumnComboBox - SelectionMode.Single - SelectionChanged event fires twice

When the SelectionMode of MultiColumnComboBox is set to Single, changing the Selection invokes twice the SelectionChanged event.

What I would expect is that the event fires only once, with one item in AddedItems and one item in RemovedItems. Currently, addition and removal is done seperately, and the two invocations of the event correspond to them.

To reproduce, just use the Getting Started article about MultiColumnComboBox with the Clubs ItemSource. Subscribe to SelectionChanged event and make a change to the selection. I hope the following gif makes this clear - the first selection is valid, but the second should invoke the event only once, with 1 item added, 1 removed.

Attached Files:
2 comments
ADMIN
Dilyan Traykov
Posted on: 05 May 2022 14:25

Hello Mateusz,

Thank you for your patience.

Upon further investigating the case, I can confirm that this is a bug at our end. I have thus changed the status of the bug report to Unplanned and awarded you with some Telerik points for bringing this to our attention.

We will try to address this issue for our upcoming service pack, but please follow this item to get notified about any changes in its status.

Regards,
Dilyan Traykov
Progress Telerik

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ADMIN
Dilyan Traykov
Posted on: 26 Apr 2022 15:31

Hello Mateusz,

Thank you for the provided recording and explanation.

I can confirm that I was able to exhibit the same behavior at my end. I will further investigate the matter and let you know whether this is actually a bug or a deliberate decision, and if so - whether you can change this behavior.

Regards,
Dilyan Traykov
Progress Telerik

Love the Telerik and Kendo UI products and believe more people should try them? Invite a fellow developer to become a Progress customer and each of you can get a $50 Amazon gift voucher.