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

So you want to delete an item (or replace it with a nother value) and join the string again with comma without space?

string x = "r, v, l, m,";
string value = "v";
string[] allVals = x.TrimEnd(',').Split(new []{','}, StringSplitOptions.RemoveEmptyEntries);
// remove all values:
x = string.Join(",", allVals.Where(v => v.Trim() != value));
// or replace these values
x = string.Join(",", allVals.Select(v => v.Trim() == value ? "new value" : v));