How can I set file's summary attributes

follow this public function Test(string param1, string param2, int param3) { ..... } over the function declaration simply type "///" and it all appears as below. ///

/// Private method builds the Teaser XML body. ///

/// The items ID /// The Title of the item /// The text to write to the XML file private void BuildTXML(string sID, string sPubState, string sChannel, string sTitel, string sText, string sVisible, string sLastT) { .... }