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Uri.Scheme Property

Gets the scheme name for this URI.

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

public string Scheme { get; }

Property Value

Type: System.String
A String that contains the scheme for this URI, converted to lowercase.

ExceptionCondition
InvalidOperationException

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

The Scheme property returns the scheme used to initialize the Uri instance. This property does not indicate that the scheme used to initialize the Uri instance was recognized.

The following table shows examples of some possible values returned by the Scheme property.

Scheme

Description

file

The resource is a file on the local computer.

ftp

The resource is accessed through FTP.

gopher

The resource is accessed through the Gopher protocol.

http

The resource is accessed through HTTP.

https

The resource is accessed through SSL-encrypted HTTP.

ldap

The resource is accessed through the LDAP protocol.

mailto

The resource is an e-mail address and accessed through the SMTP protocol.

net.pipe

The resource is accessed through a named pipe.

net.tcp

The resource is accessed from TCP endpoint.

news

The resource is accessed through the NNTP protocol.

nntp

The resource is accessed through the NNTP protocol.

telnet

The resource is accessed through the TELNET protocol.

uuid

The resource is accessed through a unique UUID endpoint name for communicating with a service.

The following example writes the scheme name (http) to the console for the http://www.contoso.com/ URI.

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

 Console.WriteLine(myUri.Scheme);
   

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 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

.NET for Windows Store apps

Supported in: Windows 8

.NET for Windows Phone apps

Supported in: Windows Phone 8.1, Windows Phone 8, Silverlight 8.1

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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

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