saveHiddenColumnsToCookie

saves hidden columns to cookie

name	string	optional, cookie name
cookie_param	string	additional parameters added to cookie

Available only in PRO Edition

Example

myTreeGrid.attachEvent("onColumnHidden", function(index,state){
  //minimal parameters set
  myTreeGrid.saveHiddenColumnsToCookie();
  //maximal parameters set
  myTreeGrid.saveHiddenColumnsToCookie("some_name","expires=Fri, 31-Dec-2010 23:59:59 GMT");
});

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