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HttpServerUtility.UrlDecode Method (String, TextWriter)

Decodes an HTML string received in a URL and sends the resulting output to a TextWriter output stream.

Namespace:  System.Web
Assembly:  System.Web (in System.Web.dll)
'Declaration
Public Sub UrlDecode ( _
	s As String, _
	output As TextWriter _
)

Parameters

s
Type: System.String

The HTML string to decode.

output
Type: System.IO.TextWriter

The TextWriter output stream that contains the decoded string.

URL encoding ensures that all browsers will correctly transmit text in URL strings. Characters such as a question mark (?), ampersand (&), slash mark (/), and spaces might be truncated or corrupted by some browsers. As a result, these characters must be encoded in <a> tags or in query strings where the strings can be re-sent by a browser in a request string.

UrlDecode is a convenient way to access the HttpUtility.UrlDecode method at run time from an ASP.NET application. Internally, UrlDecode uses HttpUtility.UrlDecode to decode strings.

To encode or decode values outside of a web application, use the WebUtility class.

The following example decodes the string named EncodedString (received in a URL) into the string named DecodedString.

Dim writer As New StringWriter
Server.UrlDecode(EncodedString, writer)
Dim DecodedString As String = writer.ToString()
   

.NET Framework

Supported in: 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

Windows Phone 8.1, Windows Phone 8, 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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