How to remove comma separated value from a string?

Question

I want to remove a comma separated value from the string..

suppose I have a string like this

string x=\"r, v, l, m\"

and i want to

Answer 1

Not going about this right. Do you need to keep the string? I doubt you do. Just use a list instead. Can you have duplicates? If not:

offIdColl = my_Order.CustomOfferAppliedonOrder.TrimEnd(',').Split(',');

if (offIdColl.Contains(OfferID.ToString()))
{
    offIdColl.Remove(OfferID.ToString());
}