Question

I wanna add space in string( string from array) after 2 characters, for example:
1234567890 should be 12 34 56 78 90, any suggestions how to do that?

Answer 1

You would probably have to do a loop as such:

int i = 0;
int amount = 2;
string s = "1234567890";
string withspaces = "";

while (i+amount < s.Length) {
  s += s.Substring(i,i+amount);
  s += " ";
  i = i + amount;
}

This could be heavy on string usage, so make sure you read up on effective string concatenation