Question

I am making an application i have to compare two strings for a specific word

for eg

string a="abc";
string b="abcController";

I have to compare a and b to match abc

I am using Equals or CompareTo but these are not working

Answer 1

In the simplest fashion, you can use the Contains method:

var a = "abc";
var b = "abcSOMDH";
var c = b.Contains(a);

This method performs an ordinal (case-sensitive and
culture-insensitive) comparison. The search begins at the first
character position of this string and continues through the last
character position.