SNSevvandhi Nagulan Syncfusion Team November 21, 2019 10:59 PM
Greetings from Syncfusion support.
We can able to reproduce the reported issue while placing the MultiSelect component inside the Tab component. The cause of the issue is, when the parent component’s is in hidden, then parent component overrides the child component width. So MultiSelect component width is not properly calculated. To get rid of the reported issue, we suggest to call the refresh method on the tab Selected event as mentioned below,