FSFarveen Sulthana Thameeztheen Basha Syncfusion Team December 18, 2022 04:33 AM UTC
Greetings from Syncfusion Support.
Futher analyzing, our Grid filter does not support the
use of special characters or arithmetic operators such as '>', '<', '=',
and '!'. This is because using special characters can impact the jQuery
traversing behavior and make it difficult to locate elements.
For more information, please see the following knowledge