Given the below xml I need to return all the employees that belong to a department.
So when DepartmentName=Fashion should return 3 employees 

```
    <?xml version="1.0" encoding="utf-8" ?>
    <Store>
      <Departments>
        <Department name="Fashion">
          <Employees>
            <Employee FirstName="Jo" Surname="Blogg"/>
            <Employee FirstName="Mark" Surname="Smith"/>
            <Employee FirstName="Rose" Surname="Blogg2"/>
          </Employees>
        </Department>    
        <Department name="Makeup">
          <Employees>     
            <Employee FirstName="Sonia" Surname="Smith2"/>
            <Employee FirstName="Jenny" Surname="Blogg3"/>
          </Employees>
        </Department>   
     </Departments>   
    </Store>

```

what I have tried but does not compile and other tries didnt return the wanted result 

```
    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Text;
    using System.Xml.Linq;

    namespace ConsoleApplicationXml
    {
        class Program
        {
            static void Main(string[] args)
            {
                var xDocument = XDocument.Load("Store.xml");

                //Get all employees that belong to "Fashion
                string departmentName = "Fashion";

       //compiles but get object variable not set
        var employees = (from emp in xDocument.Descendants("Employees")
                         where (emp.Parent.FirstAttribute.Value == departmentName)

                         select new Employee
                         {
                             DepartmentName = departmentName,
                             FirstName = emp.FirstAttribute.Value,
                             Surname = emp.LastAttribute.Value
                         }).ToList();

```

//DOES NOT COMPILE!! 

```
                var employees = (from emp in xDocument.Descendants("Employees")
                                 where (emp.Parent.FirstAttribute.Value == departmentName)
                                 let xFirstName = emp.Element("Employee").FirstAttribute("FirstName")
                                 let xLastName = emp.Element("LastName")
                    select new Employee
                    {
                        DepartmentName = departmentName,
                        FirstName = xFirstName.Value,
                        Surname = xLastName.Value
                    }).ToList();
            }
        }

        public class Employee
        {
            public string DepartmentName { get; set; }
            public string FirstName { get; set; }
            public string Surname { get; set; }
        }
    }

```