In either case, you must make two changes in the Web.config file. This setting makes request validation occur later in the sequence of request processing events. NET MVC application, you must change request validation to occur earlier in the sequence of request processing, as explained earlier for ASP. In the Web.config file, make the following setting: In ASP.

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For example, interest rates fall within permitted boundaries.

Some documentation and references interchangeably use the various meanings, which is very confusing to all concerned.

To disable request validation for an action method, mark the method with the attribute method and pass it the name of the field or other object that you want to bypass request validation for.

The comments in the following code snippet indicate which lines of code trigger request validation and which ones do not.

Request validation throws this exception when any HTML markup is detected, including harmless markup like (bold) elements.

Throwing an error under this circumstance can be a problem if you want your application to accept HTML markup.(Unless you've manually checked it for potentially malicious markup, as explained later.) For information about how to HTML-encode text, see the blog entry New You can disable request validation for an entire application, but doing so is not recommended.The recommendation is to selectively disable request validation only for the virtual paths or specific pages where you want to allow markup.In general, you should restrict as narrowly as possible the list of HTML tags that you will accept, and reject everything else.(This approach is sometimes referred as using a .) If you are working with Web Forms pages, you can often use a third-party "rich text" control that lets users format text.For more information, see the example on the OWASP site of disabling request validation for ASP. Another approach is to use an alternative form of markup, like Mark Down, and then convert the user's text to valid and safe HTML. For more information about Markdown, see the Daring Fireball site.