SNSevvandhi Nagulan Syncfusion Team November 14, 2019 08:07 AM
We have confirmed the reported issue as a bug at our end and this fix will be included in on our patch release scheduled Nov 27th 2019. We appreciate your patience until then. You can track the status of the reported issue from the below feedback link.
SNSevvandhi Nagulan Syncfusion Team December 12, 2019 05:35 AM
Thanks for the patience.
We are glad to announce that our latest release in the versionv17.3.29has been rolled out successfully and in that release, we have included the “On clearing all the selected data drop down popup not appearing”. So, we suggest you upgrade our Syncfusion packages to our latest version to resolve this issue in your end.
Please find the sample and release notes details from the below link.