Log Message Error: 'Collection was modified; enumeration operation may not execute.'

[Rammohan91 (Rammohan Banda)]

Are you trying to delete any rows under the loop?

Have a look at this,

Collection was modified; enumeration operation might not execute

Hi there, Yes, that is right. When you try to delete rows when enumeration in a for each loop, you will get that error. To delete rows from datatable, you could use the logic mentioned below - Use the select function on the datatable to filter the rows that match your condition and this will return an array of Datarows. Then use a for each loop and remove each row from the Array of Datarows using datatable.Rows.Remove(row); Hope this helps. Regards, Amrita

Thanks,
Rammohan B.