How to union two data tables and order the result

var dt1 = new DataTable(); // Replace with Dt1
var dt2 = new DataTable(); // Replace with Dt2

var result = dt1.AsEnumerable()
            .Union(dt2.AsEnumerable())
            .OrderBy (d => d.Field<string>("emp_name"));

i think this code will help u to do it without using entity...

Dt1.Merge(Dt2);