Type.Equals Method (Object) (System)

.NET Framework Class Library

Type..::.Equals Method (Object)

Determines if the underlying system type of the current Type is the same as the underlying system type of the specified Object.

Namespace: System
Assembly: mscorlib (in mscorlib.dll)

Syntax

Public Overrides Function Equals ( _
	o As Object _
) As Boolean

public override bool Equals(
	Object o
)

public:
virtual bool Equals(
	Object^ o
) override

abstract Equals : 
        o:Object -> bool 
override Equals : 
        o:Object -> bool

Parameters

o: Type: System..::.Object
The object whose underlying system type is to be compared with the underlying system type of the current Type.

Return Value

Type: System..::.Boolean
true if the underlying system type of o is the same as the underlying system type of the current Type; otherwise, false. This method also returns false if the object specified by the o parameter is not a Type.

Implements

_Type..::.Equals(Object)
_MemberInfo..::.Equals(Object)

Remarks

This method overrides Object..::.Equals.

Examples

The following example uses Equals to compare two Object instances.


Imports System
Imports System.Reflection

Class Example

    Public Shared Sub Main() 

        Dim a As Type = GetType(System.Object)
        Dim b As Type = GetType(System.Object)
        Console.WriteLine("{0} = {1}: {2}", a, b, a.Equals(b))
        ' The Type objects in a and b are equal,
        ' because they represent System.Object.

        a = GetType(Example)
        b = New Example().GetType()
        Console.WriteLine("{0} is equal to {1}: {2}", a, b, a.Equals(b))
        ' The Type objects in a and b are equal,
        ' because they both represent type Example.

        b = GetType([Object])
        Console.WriteLine("typeof({0}).Equals(typeof({1})): {2}", a, b, a.Equals(b))

        ' The Type objects in a and b are not equal,
        ' because variable a represents type Example
        ' and variable b represents type Object.

        'Console.ReadLine();

    End Sub 
End Class
'
' This code example produces the following output:
'    System.Object = System.Object: True
'    Example is equal to Example: True
'    typeof(Example).Equals(typeof(System.Type)): False
'



using System;
using System.Reflection;

class Example
{
    public static void Main()
    {

        Type a = typeof(System.Object);
        Type b = typeof(System.Object);

        Console.WriteLine("{0} == {1}: {2}", a, b, a.Equals(b));

        // The Type objects in a and b are equal,
        // because they represent System.Object.

        a = typeof(Example);
        b = new Example().GetType();

        Console.WriteLine("{0} is equal to {1}: {2}", a, b, a.Equals(b));

        // The Type objects in a and b are equal,
        // because they both represent type Example.

        b = typeof(Object);

        Console.WriteLine("typeof({0}).Equals(typeof({1})): {2}", a, b, a.Equals(b));

        // The Type objects in a and b are not equal,
        // because variable a represents type Example
        // and variable b represents type Object.

        //Console.ReadLine();

    }
}

//
/* This code example produces the following output:
    System.Object == System.Object: True
    Example is equal to Example: True
    typeof(Example).Equals(typeof(System.Type)): False
*/

Version Information

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

Platforms

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Reference