Thanks for your replay, i have checked your code and it is working fine, but it is a windows form application, and we are using it in web project.
i am using syncfusion licencee dlls in my project. (Ver:12.4400.0.24)
i have attached a zip file of sample web project, you can replicate this issue in this web project.
when you press button first time it will give you proper result, but when we click these button again and again (like we are calling it in loop) quartile start giving issue.
during multiple clicks sometime it again gives proper result but most of the time it gives error, if we close browser and re-run project, again it gives proper result first time.
we tried same code in Windows Form Application, and it is giving proper result in windows form, But not in Web Project.
we are creating Sheet from datatable in our project.
Your Help is very much valuable for us. Thanks in advance.
Attachment:
web_project_quartile_issue_5b4c7d22.zip