Initialises the class to hold a value either from a post request or a querystring request

The add method is not availible for HttpParam since HttpParam checks both Request.Form and Request.QueryString

Checks whether the form or querystring has the specified value

Determines whether the specified Object is equal to the current Object.

Allows an Object to attempt to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection.

Returns an enumerator that iterates through a collection.

Serves as a hash function for a particular type.

Gets the Type of the current instance.

Creates a shallow copy of the current Object.

Returns a String that represents the current Object.

Representation of a non-initialized HttpParam

Fetch an item from the form or querystring (in that order).