I want a filter where status is null I want to read the data for Filtering I Use LINQ
After that I want to update that row Sucess
Hear the problem is I can filter that data using LINQ (dt1.AsEnumerable.Where(Function(r) String.IsNullOrWhiteSpace(r("Status").ToString.Trim)).CopyToDataTable)
Use invoke code with dt1 variable as In/Out dt1.AsEnumerable.Where(Function(r) String.IsNullOrWhiteSpace(r(“Status”).ToString.Trim)).ToList().ForEach(Sub(row) row(“Status”) =“Success”)
Here i am updating status with Sucess for demnstration, but u can add status according to yours
After the invoke code, use write range to write the dt1 to the excel file
I got it Thank you very much @NIVED_NAMBIAR And @Pradeep_Shiv please suggest to me how to learn LINQ and where I have to learn, Please
You have any tutorial please share me