UserControl DataBinding in Windows Forms

This sample shows how to do databinding and error validation in Windows Forms in three different scenario:

1. databinding with stock controls (Customer.Title property);
2. databinding with user control for string properties (Customer.FirstName and Customer.LastName);
3. databinding with user control for complex object properties (Customer.DefaultAddress, Customer.InvoiceAddress and Customer.DeliveryAddress)

Quick walkthrough

• Customer and Address implements INotifyPropertyChanged for databinding and IDataErrorInfo for validation;
• NameAddress is an UserControl that wraps a TextBox by simply exposing its Text property;
• AddressControl is an UserControl for Address POCO -- using internally both a BindingSource and an ErrorProvider.