Question

i have a text file with string “abcdef”

I want to search for the string “abc” in my test file … and print the next two character for abc ..here it is “de”.

how i could accomplish ?
which class and function?

Answer 1

Try this:

string s = "abcde";
int index = s.IndexOf("abc");
if (index > -1 && index < s.Length - 4)
    Console.WriteLine(s.SubString(index + 3, 2));

Update: tanascius noted a bug. I fixed it.