HttpServerUtility.HtmlDecode Method
Definition
Important
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Decodes a string that has been encoded to eliminate invalid HTML characters.
To encode or decode values outside of a web application, use the WebUtility class.
Overloads
| Name | Description |
|---|---|
| HtmlDecode(String) |
Decodes an HTML-encoded string and returns the decoded string. |
| HtmlDecode(String, TextWriter) |
Decodes an HTML-encoded string and sends the resulting output to a TextWriter output stream. |
HtmlDecode(String)
Decodes an HTML-encoded string and returns the decoded string.
public:
System::String ^ HtmlDecode(System::String ^ s);public string HtmlDecode(string s);member this.HtmlDecode : string -> stringPublic Function HtmlDecode (s As String) As StringParameters
- s
- String
The HTML string to decode.
Returns
The decoded text.
Examples
The following example contains the function LoadDecodedFile, which decodes the data from a file and copies it into one string.
<%@ PAGE LANGUAGE = "C#" %>
<%@ IMPORT NAMESPACE = "System.IO" %>
HttpServerUtility.HtmlDecode Example
<%@ PAGE LANGUAGE = "VB" %>
<%@ Import Namespace="System.IO" %>
HttpServerUtility.HtmlDecode Example
Remarks
HTML encoding makes sure that text is displayed correctly in the browser and not interpreted by the browser as HTML. For example, if a text string contains a less than sign (<) or greater than sign (>), the browser would interpret these characters as the opening or closing bracket of an HTML tag. When the characters are HTML encoded, they are converted to the strings < and >, which causes the browser to display the less than sign and greater than sign correctly. HtmlDecode decodes text that has been transmitted to the server.
This method is a convenient way to access the HttpUtility.HtmlDecode method at run time from an ASP.NET application. Internally, this method uses HttpUtility.HtmlDecode to decode strings.
In the code-behind file for an ASP.NET web page, access an instance of the HttpServerUtility class through the Server property. In a class that is not in a code-behind file, use HttpContext.Current.Server to access an instance of the HttpServerUtility class.
Outside of a web application, use the WebUtility class to encode or decode values.
Applies to
HtmlDecode(String, TextWriter)
Decodes an HTML-encoded string and sends the resulting output to a TextWriter output stream.
public:
void HtmlDecode(System::String ^ s, System::IO::TextWriter ^ output);public void HtmlDecode(string s, System.IO.TextWriter output);member this.HtmlDecode : string * System.IO.TextWriter -> unitPublic Sub HtmlDecode (s As String, output As TextWriter)Parameters
- s
- String
The HTML string to decode.
- output
- TextWriter
The TextWriter output stream that contains the decoded string.
Examples
The following example decodes a string that has been HTML-encoded for transmission over HTTP. It decodes the supplied string named EncodedString which contains the text "This is a DecodedString as "This is a
String EncodedString = "This is a <Test String>.";
StringWriter writer = new StringWriter();
Server.HtmlDecode(EncodedString, writer);
String DecodedString = writer.ToString();
Dim EncodedString As String = "This is a <Test String>."
Dim writer As New StringWriter
Server.HtmlDecode(EncodedString, writer)
Dim DecodedString As String = writer.ToString()
Remarks
HTML encoding makes sure that text is displayed correctly in the browser and not interpreted by the browser as HTML. For example, if a text string contains a less than sign (<) or greater than sign (>), the browser would interpret these characters as the opening or closing bracket of an HTML tag. When the characters are HTML encoded, they are converted to the strings < and >, which causes the browser to display the less than sign and greater than sign correctly.
HtmlDecode decodes text that has been transmitted to the server.
HtmlDecode is a convenient way to access the HttpUtility.HtmlDecode method at run time from an ASP.NET application. Internally, HtmlDecode uses HttpUtility.HtmlDecode to decode strings.
To encode or decode values outside of a web application, use the WebUtility class.
