Hi Bhavesh Patil,
Thanks for contacting Syncfusion Forums.
Query: gridLines property is not working properly
From your query, we are able understand that you are not able to remove gridLines of the Grid using “gridLines” property. We suspect that you are using older version of Grid, which is the cause of the issue. Please make sure that you are using the latest version of Grid.
Please refer the below help documentation for setting gridLines property of Grid,
If you have further queries, please get back to us.