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Uri.Scheme Property

.NET Framework 4.5

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.

Exceptions

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

Remarks

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.

Examples

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

C++

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

 Console.WriteLine(myUri.Scheme);

Version Information

.NET Framework

Supported in: 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

Platforms

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.

Reference

Uri Class

System Namespace

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