Parameters

objA

Documentation for this section has not yet been entered. [Edit]

objB

Documentation for this section has not yet been entered. [Edit]

Returns

true if one or more of the following statements is true:

• objA and objB refer to the same object,
• objA and objB are both null references,
• objA is not null and objA.Equals(objB ) returns true;

otherwise returns false.

[Edit]

Remarks

This static method checks for null references before it calls objA.Equals(objB ) and returns false if either objA or objB is null. If the Equals(object obj) implementation throws an exception, this method throws an exception. [Edit]

Example

The following example demonstrates the object.Equals(object) method.

C# Example

using System; public class MyClass { public static void Main() { string s1 = "Tom"; string s2 = "Carol"; Console.WriteLine("Object.Equals(\"{0}\", \"{1}\") => {2}", s1, s2, Object.Equals(s1, s2)); s1 = "Tom"; s2 = "Tom"; Console.WriteLine("Object.Equals(\"{0}\", \"{1}\") => {2}", s1, s2, Object.Equals(s1, s2)); s1 = null; s2 = "Tom"; Console.WriteLine("Object.Equals(null, \"{1}\") => {2}", s1, s2, Object.Equals(s1, s2)); s1 = "Carol"; s2 = null; Console.WriteLine("Object.Equals(\"{0}\", null) => {2}", s1, s2, Object.Equals(s1, s2)); s1 = null; s2 = null; Console.WriteLine("Object.Equals(null, null) => {2}", s1, s2, Object.Equals(s1, s2)); } }

The output is

Object.Equals("Tom", "Carol") => False
Object.Equals("Tom", "Tom") => True
Object.Equals(null, "Tom") => False
Object.Equals("Carol", null) => False
Object.Equals(null, null) => True

Requirements

Namespace: System
Assembly: mscorlib (in mscorlib.dll)
Assembly Versions: 1.0.5000.0, 2.0.0.0