Using regular expression to search for string,substring among array of strings

//Below is an function which searches for a existence of a string,substring among array of strings.

//Declare the string to search and the content string

 
string[] words ={"This","is an attempt","to search","string contents","using","regular expressions." };
string strToSearch = "regular";

//call the function SearchAndDisplay which will search and display the result. 


if (!SearchAndDisplay(strToSearch,words))
{
     Response.Write("No matches found.");
}

/*
This function iterates through a given array and finds existence of a string among it.if found returns true and prints the string else returns false.
*/
 private bool SearchAndDisplay(string strToSearch,string[]arrContentString)
    {
        bool isMatchFound = false;
        foreach (string tempString in arrContentString)
        {
            if (System.Text.RegularExpressions.Regex.IsMatch(tempString, strToSearch, System.Text.RegularExpressions.RegexOptions.IgnoreCase))
            {
                isMatchFound = true;
                Response.Write("Match found in :" + tempString.Trim() + "
");
            }

        }
        return isMatchFound;
        
    }