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WebRequest.CreateDefault Method

Initializes a new WebRequest instance for the specified URI scheme.

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

public static WebRequest CreateDefault(
	Uri requestUri
)

Parameters

requestUri
Type: System.Uri

A Uri containing the URI of the requested resource.

Return Value

Type: System.Net.WebRequest
A WebRequest descendant for the specified URI scheme.

ExceptionCondition
NotSupportedException

The request scheme specified in requestUri is not registered.

ArgumentNullException

requestUri is null.

SecurityException

The caller does not have permission to connect to the requested URI or a URI that the request is redirected to.

The CreateDefault method returns a WebRequest descendant instance based on only the scheme portion of a URI.

For example, when a URI beginning with http:// is passed in requestUri, an HttpWebRequest is returned by CreateDefault. If a URI beginning with file:// is passed instead, the CreateDefault method will return a FileWebRequest.

NoteNote

This member outputs trace information when you enable network tracing in your application. For more information, see Network Tracing in the .NET Framework.

.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

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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