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HttpEncoder.HtmlAttributeEncode Method

Encodes an incoming value into a string that can be inserted into an HTML attribute that is delimited by using single or double quotation marks.

Namespace:  System.Web.Util
Assembly:  System.Web (in System.Web.dll)

protected internal virtual void HtmlAttributeEncode(
	string value,
	TextWriter output


Type: System.String

The string to encode.

Type: System.IO.TextWriter

The text writer to write the encoded value to.


output is null.

The HtmlAttributeEncode method encodes characters by using the standard HTML entities. For example, the < (left angle bracket) is encoded as &lt; and the \ (backslash) is encoded as &#92;.

It is safe to use HtmlAttributeEncode within single-quoted and double-quoted attributes. The values must be quoted.

.NET Framework

Supported in: 4.6, 4.5, 4

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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