How to do it...

Perform the following steps to create a collection data model and bind it to the UI, using a DataGrid control:

1. Inside the Solution Explorer, right-click on the project. From the context menu, navigate to Add | Class... to create a class file named Employee.cs.
2. Open the Employee.cs file and replace the class implementation with the following code:

public class Employee 
{ 
    public string FirstName { get; set; } 
    public string LastName { get; set; } 
    public string Department { get; set; } 
} 

3. Navigate to the MainWindow.xaml.cs file and add the following using statement to define ObservableCollection inside the class:

using System.Collections.ObjectModel; 

4. Inside the MainWindow class implementation, create a dependency property named Employees, of type ObservableCollection<Employee>, as shared here:

public ObservableCollection<Employee> Employees 
{ 
    get { return (ObservableCollection<Employee>)GetValue(EmployeesProperty); } 
    set...