Using LINQ to simplify business rules

gistfile1.cs

// Ref: http://odetocode.com/Articles/739.aspx
// Using LINQ to simplify business rules

Employee employee = 
        new Employee { ID = 1, Name = 
            "Poonam", DepartmentID = 1 };

Func<Employee, bool>[] validEmployeeRules = 
{
    e => e.DepartmentID > 0,
    e => !String.IsNullOrEmpty(e.Name),
    e => e.ID > 0
};


bool isValidEmployee =
      validEmployeeRules.All(rule => rule(employee));