What is the type of character like "&#64;" and how to convert to ASCII
<p>Can you any one tell me what is the type of <code>"&amp;#64;"</code> this kind of characters. Is is called Unicode character?</p>

<p>I also want to have full set of this type of characters and also I want to know how to convert them to ascii in C#.</p>

<p>Thanks</p>
