HTML-encoding values can help prevent cross-site scripting attacks and malicious content from being displayed. HTML encoding is also useful when you want to display HTML code in the browser, such as displaying the string "<br/>" instead of inserting a line break (<br/> element) in the page.
This property is new in ASP.NET 3.5. Setting this property to false restores the default behavior of the DataFormatString property in versions of ASP.NET earlier than 3.5. For more information, see the DataFormatString property.
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)