private void RandomizeData()
        {
            for (var i = 0; i < 20; i++)
            {
                Employee employee = new Employee(
                    //RandomHelper.RandomString(10, true),
                    RandomHelper.RandomString(10, true),
                    (GENDER_TYPE)RandomHelper.RandomInt(1,3),
                    RandomHelper.RandomString(10, true),
                    RandomHelper.RandomString(10, true),
                    RandomHelper.RandomInt(19000,50000),
                    RandomHelper.RandomInt(0, 100)
                    );
                employee.setDeleteDelegate(DeleteData);
                employee.setUpdateDelegate(UpdateData);
                EmployeeCollection.Add(employee);
            }

            for (var i = 0; i < 10; i++)
            {
                Customer customer = new Customer(
                    //RandomHelper.RandomString(10, true),
                    RandomHelper.RandomString(10, true),
                    (GENDER_TYPE)RandomHelper.RandomInt(1, 3),
                    RandomHelper.RandomString(10, true),
                    RandomHelper.RandomString(10, true),
                    RandomHelper.RandomInt(1000, 10000)
                    );
                customer.setDeleteDelegate(DeleteData);
                customer.setUpdateDelegate(UpdateData);
                CustomerCollection.Add(customer);
            }
        }
 private void OnAddEmployeeData()
 {
     Employee employee = new Employee();
     employee.setUpdateDelegate(UpdateData);
     employee.setDeleteDelegate(DeleteData);
     employee.PopEditWindowCommand.Execute(null);
 }