linq - Cast List<object> to List<myclass> c# -

by code got list of selected rows in aspxgrid.

string[] fieldname = new string[] { "userid", "name", "address" }; list<object> selectedlist = grid.getselectedfieldvalues(fieldname); 

now want perform 1 of below operation.

1. filter list of object userid userid = 1 using linq
2. cast list<object> list<users>

i have tried following 2 methods exception occurs.

unable cast object of type 'system.object[]' type 'cubedataobject.claims'.

list<users> mylist = (list<users>)(object)selectedlist; list<users> listd = selectedlist.select(n => (users)n).tolist(); 

i have tried many other methods tired.

it seems have list of boxed object[]. so, need unbox , values of userid, name, address corresponding index.
here example:

list<users> mylist = selectedlist     .where(item => (int)((object[])item)[0] == 1)     .select(item =>     {         var values = (object[])item;          return new users()         {             userid = (int)values[0],             name = (string)values[1],             address = (string)values[2]         };     })     .tolist();