Dropdown Tree ValueChanging Event not fired when Clear All clicked

Question

v25.2.7

Dropdown Tree is in check box mode. ValueChanging event is fired as expected when individual items are selected/deselected.However, if the clear all button is clicked, all selections are cleared within the component but no event is fired. Is there an alternative method for detecting when this happens?

LeoLavanya Dhanaraj · Answer

Hi Aidan,Greetings from Syncfusion support.Based on your shared details, we have validated the
mentioned issue in the Blazor Dropdown Tree(ValueChanging Event is not
fired when the "Clear All" button is clicked) component, and
we have considered it as a bug on our end. The fix for this issue will be
included in our weekly patch release, which is expected to be released at the
end of June 2024.You can
track the status of the fix through the following link.Feedback : https://www.syncfusion.com/feedback/58736/the-dropdown-tree-valuechanging-event-is-not-fired-when-the-clear-all-button-isWe appreciate your patience.Regards,Leo Lavanya Dhanaraj

LeoLavanya Dhanaraj · Answer

Hi Aidan,Thanks for your patience.We are glad to announce that our patch release (V26.1.39)
has been rolled out successfully. The issue where
the ValueChanging event is not fired when the Clear
All button is clicked, has been resolved.To access this fix, we suggest you update the package to 26.1.39
and we include the sample in the latest version for your reference.Sample : Attached as a zip file.Feedback : https://www.syncfusion.com/feedback/58736/the-dropdown-tree-valuechanging-event-is-not-fired-when-the-clear-all-button-isRelease Notes : https://blazor.syncfusion.com/documentation/release-notes/26.1.39?type=all#bug-fixes-6Regards,Leo Lavanya DhanarajAttachment: DropdownTree_179ac4db.zip

Aidan Sumner · Answer

Hi Leo,This has fixed my issue. Thank you very much for your excellent support.Regards,Aidan Sumner.

Adnan Nametak · Answer

Hello,I am using the SfDropdownTree on which I have the same problem, but with the event ValueChanged. The Event is not allways triggered.I have tried the

DropdownTree_179ac4db.zip Sample, on which the ValueChanged is not allways triggered when using the SfDropdownTree.I am currently on the version 27.1.58.Is there any fix for that?????.

Vishwanathan Muruganantham · Answer

Hi Adnan,We have
reviewed your query and understand that the ValueChanged event is not
always triggered in the Dropdown Tree component. We used your sample and
updated to version 27.1.58. The ValueChanged event was triggered
correctly when clicking an item and when clearing an item using the clear icon.
To help us provide a prompt solution, please share any custom code you are
using, replication steps, and a video demonstrating the issue. These details will
help us understand the issue better and provide a prompt solution.

Sample: attached as zip file.Please check the sample and let us know if you need any
further assistance.Best Regards,
VishwanathanDAttachment: Dropdown_Tree_7072233f.zip

Adnan Nametak · Answer

Hello Vishwanathan,I have used the 
DropdownTree_179ac4db.zip from the fix above, I updated the syncfusion component to the version 27.1.58. and added a count.Attachment: DropdownTree_27.1.58_250ae161.zip

Adnan Nametak · Answer

Hello Vishwanathan,

and here is the Video, I cloudn't upload both files at the same time.Greetings.Attachment: Video_localhost_50225__Google_Chrome_20241126_092654_467a11f5.zip

Vishwanathan Muruganantham · Answer

Hi Adnan,Upon further validation, we
have considered the “ValueChanged event not triggered when selecting item in
Dropdown Tree component” as bug on our end. The fix for this issue will be
included in the Volume 4 main release, planned for mid-December 2024.Feedback:
https://www.syncfusion.com/feedback/63468/valuechanged-event-not-triggered-when-selecting-item-in-dropdown-tree-component
Disclaimer: Inclusion
of this solution in the weekly release may change due to other factors
including but not limited to QA checks and works reprioritization.We appreciate your patience.Regards,
Vishwanathan

Vishwanathan Muruganantham · Answer

Hi Adnan,Thanks for your patience.We are glad to announce that our Essential Studio® 2024
Volume 4 Main Release v28.1.33 is rolled out and is available for download
under the following link.Https://www.syncfusion.com/forums/195512/essential-studio-2024-volume-4-main-release-v28-1-33-is-available-for-download
The issue where “ValueChanged event not triggered when selecting item in
Dropdown Tree component” has been resolved in this
release. To access this fix, we suggest you update the package to 28.1.33 and
we include the sample in the latest version for your reference.Sample: attached as zip fileFeedback: https://www.syncfusion.com/feedback/63468/valuechanged-event-not-triggered-when-selecting-item-in-dropdown-tree-component
Release Notes: https://blazor.syncfusion.com/documentation/release-notes/27.2.5?type=all#dropdowntree
Root Cause: This issue occurs because the
selection is not properly updated to the Value property, which prevents the ValueChanged
event from being triggered.We thank you for your support and appreciate your
patience in waiting for this release. Please get in touch with us if you would
require any further assistance.Regards,VishwanathanAttachment: DropdownTree_9637b7ca.zip