.NET Windows Forms in a Nutshell

Name

BindingManagerBase

Synopsis

This class represents a mapping of a property (or column) in a data source to a property on a Control. In the case of simple binding, it uses a bag of Binding objects to handle those mappings. For complex data binding, you can derive a class that handles the data-binding process.

Each binding manager maintains a current Position in the data source, to allow multiple bound controls to remain in sync, each control displaying a different column in the same selected row.

For example, a ListBox and a TextBox can be bound to a data source with same binding manager (simple binding for the TextBox providing a Binding object, complex binding for the ListBox without an explicit binding object). The two will remain synchronized as the ListBox selection changes. Another ListBox and TextBox bound to the same data source but through a second binding manager will also remain synchronized with one another, but will not be synchronized with the first pair. (See BindingContext to find out how to create an independent binding manager for your second pair of controls.)

If the current row in the data source changes, the binding manager raises PositionChanged. If the value of the bound object changes, the CurrentChanged event is raised. See CurrencyManager for information about how this works in practice, and Binding for more information about the data-binding hierarchy.

public abstract class BindingManagerBase {

// Public Constructors

   public BindingManagerBase();

// Protected ...