WebRequest.Create Method (String)

The Create method returns a descendant of the WebRequest class determined at run time as the closest registered match for requestUri.

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

The pre-registered reserve types already registered include the following:

• http://

• https://

• ftp://

• file://

The .NET Framework includes support for the http://, https://, ftp://, and file:// URI schemes. Custom WebRequest descendants to handle other requests are registered with the RegisterPrefix method.

The Create method uses the requestUriString parameter to create a Uri instance that it passes to the new WebRequest.

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

The following example uses Create to instantiate an HttpWebRequest instance. A string representing the target URL is used as the constructor parameter.

			Uri ourUri = new Uri(url);            

			// Create a 'WebRequest' object with the specified url. 
			WebRequest myWebRequest = WebRequest.Create(url); 

			// Send the 'WebRequest' and wait for response.
			WebResponse myWebResponse = myWebRequest.GetResponse(); 
			
			// Use "ResponseUri" property to get the actual Uri from where the response was attained.
			if (ourUri.Equals(myWebResponse.ResponseUri))
				Console.WriteLine("\nRequest Url : {0} was not redirected",url);   
			else
				Console.WriteLine("\nRequest Url : {0} was redirected to {1}",url,myWebResponse.ResponseUri);   
			// Release resources of response object.
			myWebResponse.Close(); 
			

.NET Framework

.NET Framework Client Profile

Portable Class Library

.NET for Windows Store apps

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

Other Resources