Uri.Port Property (System)

.NET Framework Class Library

Uri..::.Port Property

Gets the port number of this URI.

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

Syntax

Visual Basic (Declaration)

Public ReadOnly Property Port As Integer

Visual Basic (Usage)

Dim instance As Uri
Dim value As Integer

value = instance.Port

public int Port { get; }

Visual C++

public:
property int Port {
    int get ();
}

JScript

public function get Port () : int

Property Value

Type: System..::.Int32
An Int32 value that contains the port number for this URI.

Exceptions

Exception	Condition
InvalidOperationException	This instance represents a relative URI, and this property is valid only for absolute URIs.

Remarks

The port number defines the protocol port used for contacting the server referenced in the URI. If a port is not specified as part of the URI, the Port property returns the default value for the protocol. If there is no default port number, this property returns -1.

Examples

The following example writes the URI port number to the console. In this case, the value is the default port number for HTTP, port 80.

Visual Basic

Dim baseUri As New Uri("http://www.contoso.com/")
Dim myUri As New Uri(baseUri, "catalog/shownew.htm?date=today")

Console.WriteLine(myUri.Port)

Uri baseUri = new Uri("http://www.contoso.com/");
 Uri myUri = new Uri(baseUri,"catalog/shownew.htm?date=today");

 Console.WriteLine(myUri.Port);

Visual C++

Uri^ baseUri = gcnew Uri( "http://www.contoso.com/" );
Uri^ myUri = gcnew Uri( baseUri,"catalog/shownew.htm?date=today" );
Console::WriteLine( myUri->Port );

JScript

        var baseUri : Uri = new Uri("http://www.contoso.com/");
        var myUri : Uri = new Uri(baseUri,"catalog/shownew.htm?date=today");
        Console.WriteLine(myUri.Port);

CPP_OLD

    Uri* baseUri = new Uri(S"http://www.contoso.com/");
    Uri* myUri = new Uri(baseUri,S"catalog/shownew.htm?date=today");

    Console::WriteLine(myUri->Port);

Platforms

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune

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

Version Information

.NET Framework

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

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0

XNA Framework

Supported in: 3.0, 2.0, 1.0

Reference

Uri Class

Uri Members

System Namespace