backgroundworker

thank you everyone for responce

https://www.c-sharpcorner.com/UploadFile/mahesh/backgroundworker-in-C-Sharp/

As you might know, there are thread related issues in this scenario. But some workaround mentioned here https://www.experts-exchange.com/questions/28945776/Loading-DataGridView-Data-Using-a-BackGroundWorker-Object.html

Better use async threading. Its far better than background worker.