How to match the first occurrence of a character and split it

Question

I have a text file from which I want to store Keys and Values in a String array.

In this case, Key is something like &

Answer 1

Basically, you do not want to split your entire string, but to skip all the content before encountering first ':' char plus one symbol (':' itself).

var data = line.Substring(line.IndexOf(':') + 1);

Or if you really want solution with Split:

var data = string.Join(":", line.Split(':').Skip(1));

Here, we first split the string into array, then skip one element (the one we are trying to get rid of), and finally construct a new string with ':' between elements in the array.