Thanks for contacting Syncfusion support.
We were unable to reproduce the issue. But we suspect that the issue occurs when a column field is not defined in the Grid dataSource and obtained as null value, and hence throws a null exception.Refer to the following knowledgebase document.
If you still face the issue, share the following information to find the cause of the issue.1. Client side and server side full code example.2. Are you performing any Grid operations like filtering\searching before exporting?3. Essential studio version.4. An issue reproducing sample if possible or sample hosted link or replicate the issue in the following sample.Sample: http://www.syncfusion.com/downloads/support/forum/123889/ze/SyncfusionASPNETApplication292008918721Regards,Jayaprakash K.
Hi Satheyaraaj,Thanks for the update.We suspect that you have bound dataTable as dataSource for the Grid, which is the cause of the reported issue. We have provided “DataTable support while exporting” from v18.104.22.168. So, if you are using older version, please upgrade to our latest version.After doing the above, if the issue has still not resolved, please provide the following1. Datatype of your dataSource2. Ensure if you have referred the v22.214.171.124 dll’s, scripts and css in your sample project?3. Grid rendering code and server side exporting code.4. Issue reproducible sample or sample hosted link or replicate the issue in the attached sample.We have created a sample, which can be downloaded from below location.Sample: http://www.syncfusion.com/downloads/support/forum/123889/ze/SyncfusionASPNETApplication292078076954Regards,Jayaprakash K.