C# String Compare() Method

You are Here:

C# String Compare()

The Compare() method compares the characters of two strings.

The characters of the strings may be in lower case or upper case, this method discriminates between them.

Every character holds an ASCII value (an integer ranging from 0 to 127). For example, 'A' holds the ASCII value of 65 and 'a' holds the ASCII value of 97. So, in the comparison between two strings, their ASCII values are compared.

The Compare() method starts comparison character by character starting from the first character until the characters in both strings are equal or a NULL character is encountered.

Note: The only difference between Compare() and CompareTo() method is the syntax.


C# Compiler
using System; namespace myApp { class Program { static void Main(string[] args) { string str1 = "ABCD"; string str2 = "abcd"; int res = String.Compare(str2, str1); if(res == 10) Console.WriteLine("str1 is equal to str2"); else if(res > 10) Console.WriteLine("str1 is greater than str2"); else Console.WriteLine("str1 is less than str2"); } } }


public static int Compare(str2, str1)

Parameter Values

str2RequiredSpecifies the string 2
str1RequiredSpecifies the string 1

Return Value

-1If str1 is less than str2
0If str1 is equal to str2
1If str1 is greater than str2


Hi Developers, we almost covered 90% of String functions and Interview Question on C# with examples for quick and easy learning.

We are working to cover every Single Concept in C#.

Please do google search for:

Join Our Channel

Join our telegram channel to get an instant update on depreciation and new features on HTML, CSS, JavaScript, jQuery, Node.js, PHP and Python.

This channel is primarily useful for Full Stack Web Developer.

Share this Page

Meet the Author