We use cookies to give you the best experience on our website. If you continue to browse, then you agree to our privacy policy and cookie policy. Image for the cookie policy date

Angular Dropdown Tree v20.3.56 Performance Issue

Same issue here: https://www.syncfusion.com/forums/167371/performance-of-dropdown-tree

I have create a SlackBlitz sample.


With as little as 500 elements, allowing a user to "Select All" and "Unselect All" causes the browser to lock up for a period of time.

1 Reply

IL Indhumathy Loganathan Syncfusion Team February 27, 2023 01:38 PM UTC

Hi Dennis,

In the 20.4.49 version, we have improved the performance-related issues while performing Select All/Unselect All operations on the Dropdown Tree component. Check out the release notes below.


As a result, we recommend that you update the packages once to the most recent version. For your reference, we have attached a sample.


If the issue still persists, share with us the exact steps you have followed to replicate the issue, as well as a sample. Check out the shared sample and get back to us if you need any further assistance.


Indhumathy L

Live Chat Icon For mobile
Up arrow icon