WebRequest.CreateHttp Method (Uri)


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Initializes a new HttpWebRequest instance for the specified URI.

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

public static HttpWebRequest CreateHttp(
	Uri requestUri


Type: System.Uri

A URI that identifies the Internet resource.

Return Value

Type: System.Net.HttpWebRequest

Returns HttpWebRequest.

An HttpWebRequest instance for the specific URI string.

Exception Condition

The request scheme specified in requestUri is the http or https scheme.


requestUri is null.


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


The URI specified in requestUri is not a valid URI.

The CreateHttp(Uri) method returns an instance of the HttpWebRequest class for the requestUri.

When a URI that begins with http:// or http:// is passed in the requestUri parameter, an HttpWebRequest is returned by CreateHttp(Uri). Another other scheme will throw a NotSupportedException.

The CreateHttp(Uri) method uses the requestUri parameter to create a new HttpWebRequest instance. If the method is successful, the AllowReadStreamBuffering property on the returned HttpWebRequest instance is set to false.

The .NET Framework includes support for the http:// and https:// URI schemes. Custom WebRequest descendants to handle other requests are registered with the RegisterPrefix method. The Create(Uri) method can be used to create a descendant of the WebRequest class for other schemes.

Universal Windows Platform
Available since 8
.NET Framework
Available since 4.5
Portable Class Library
Supported in: portable .NET platforms
Available since 4.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
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