Returning a Distinct IQueryable with LINQ?

Question

I\'m writing a Function that pulls Records from a DataBase using LINQ to get an IQueryable. This LINQ statement will pull all of the records for Active users within a certai

Answer 1

Simplest way I have found to do this with object is using the groupby then selecting the first.

public static IQueryable GetActiveEmployees_Grid(string Period)
{
    DataContext Data = new DataContext();
    var Employees = (from c in DataSystem_Records
                     where c.Period == Period
                     orderby c.DataSystem_Employees.LName
                     select c).GroupBy(g=>g.DataSystem_Employees.AccID).Select(x=>x.FirstOrDefault());

    return Employees;
}

This is not tested but the general concept is there.

Edit: I remembered originally finding the answer somewhere on here. Check out this for grouping objects by a certain property. LINQ's Distinct() on a particular property