Remove text after a string occurrence

Question

I have a string that has the following format:

string sample = "A, ABC, 1, ACS,,"

As you can see, there are 5 occurences of the , character. I need to remove everything after the 4th occurrence so that the final result will be:

string result = fx(sample, 4);
"A, ABC, 1, ACS"

Is it possible without a foreach? Thanks in advance.

Answer 1

You could do something like this:

sample.Split(',').Take(4).Aggregate((s1, s2) => s1 + "," + s2).Substring(1);

This will split your string at the comma and then take only the first four parts ("A", " ABC", " 1", " ACS"), concat them to one string with Aggregate (result: ",A, ABC, 1, ACS") and return everything except the first character. Result: "A, ABC, 1, ACS".