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WebUtility::HtmlEncode Method (String, TextWriter)

Converts a string into an HTML-encoded string, and returns the output as a TextWriter stream of output.

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

public:
static void HtmlEncode(
	String^ value, 
	TextWriter^ output
)

Parameters

value
Type: System::String
The string to encode.
output
Type: System.IO::TextWriter
A TextWriter output stream.

ExceptionCondition
ArgumentNullException

The output parameter cannot be nullptr if the value parameter is not nullptr.

If characters such as blanks and punctuation are passed in an HTTP stream, they might be misinterpreted at the receiving end. HTML encoding converts characters that are not allowed in HTML into character-entity equivalents; HTML decoding reverses the encoding. For example, when embedded in a block of text, the characters < and >, are encoded as &lt; and &gt; for HTTP transmission.

.NET Framework

Supported in: 4

.NET Framework Client Profile

Supported in: 4

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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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