Uri.Scheme Property

[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]

Gets the scheme name for this URI.

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

Syntax

Public ReadOnly Property Scheme As String
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 property is valid only for an absolute Uri instance.

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.

The constructors for Uri allow a Windows Phone application to create a Uri instance for any of the schemes listed above. However, only Uri instances for the UriSchemeHttp or UriSchemeHttps schemes are supported by the WebClient and HTTP classes in the System.Net namespace.

Examples

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

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

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

   outputBlock.Text += "Uri.Scheme: ";
   outputBlock.Text += myUri.Scheme;
   outputBlock.Text += "\n";

Version Information

Windows Phone OS

Supported in: 8.1, 8.0, 7.1, 7.0

Platforms

Windows Phone

See Also

Reference

Uri Class

System Namespace