There is no exact answer to this since it is limited by the permitted size of the URL, which according to standards, is 2048 characters. Assuming each grade=XXXXXX is about 12 characters and that there will be other things in the URL, you might cap out at about 100-150 selections.
There is no exact answer to this since it is limited by the permitted size of the URL, which according to standards, is 2048 characters. Assuming each grade=XXXXXX is about 12 characters and that there will be other things in the URL, you might cap out at about 100-150 selections.
I am guessing a bit here.
Are you having problems?