how can i return the first position of the first occurrence of a substring in a strin

Code:

---

  public static int StringMatch(string baseStr, string compStr)        {
            //bool b = false;
            int count = 0;
            //int index = 0;
            for (int i = 0; i < baseStr.Length; i++)
            {


                for (int j = 0; j < compStr.Length; j++)
                {


                    if (baseStr[i] == compStr[j])
                    {
                        count++;


                    }
                    if (count == compStr.Length)
                    {
                        return i - compStr.Length + 1;


                    }


                }


            }
            return -1;


        }


        static void Main(string[] args)
        {


            string txt = "dhgrogood";
            string phrase = "good";
            int res = StringMatch(txt, phrase);
            Console.WriteLine(res);
        }
    }
}

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Didn't you ask this exact same question last week?

You can just use string.IndexOf():

Code:

---

int res = txt.IndexOf(phrase);

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yes, but i want to implement this method by hand

Well you need to reset count every time you start again.

You also need only one for loop.

You can cut that loop short at baseStr.Length - compStr.Length

i want to return i when basestring contains substring and i-compStr.Length+1 will be correct