Concating String Array with semicolons

Question

It is a pattern that occurs quite often in one part of our Framework. Given an Array of Strings, we have to concat all of them, seperated by Semicolons.

I´d like to know

Answer 1

You can use string.Join():

String[] values = new String[] {"a","b","c","d"};
var concat = string.Join(", ", values);

This will result in something looking like this:

a, b, c, d

Answer 2

try:

var result = string.Join(",", values.Where(s => !string.IsNullOrEmpty(s)));