Initializes a new instance of the ContentIdHelper class

Decodes Content-ID in URL format ('a%25b@c'). Converts %hh hex-escaped characters to their ASCII equivalents.

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.

If url is "cid" URL ('cid:a%25b@c') method returns decoded Content-ID message header ('a%b@c').

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.