Package wx.ComponentModel

The wx.NET component model. More...

Classes
class	DataModelBase
class	ErrorMessageDialog
class	ErrorMessageException
class	FormItemAttribute
class	FormItemGroupAttribute
interface	IDataModel
interface	IErrorHandler
class	ItemRowDesignatorAttribute
class	PropertyModel
class	RaisesChangeEventAttribute
class	ValueChangedEvent
class	ValueModel
Enumerations
enum	MessageClass
Functions
delegate void	ValueChangedHandler (object sender, ValueChangedEvent evt)

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Detailed Description

The wx.NET component model.

The component model implements the wx.NET means of binding data sources to controls. This concept replaces either the standard .NET component model as well as wxWidget's validator concept.

The motivation of a component model simply is to specify the dynamic dependencies between widgets and the data model by a dependency graph that is generated once but will not change while the widget lives. wx.NET implements its own component model since the original implementation can hardly be used (unnecessary complex, errors, unpredictable behaviour) and the interface to the data model - the implemented program logic - makes heavy use of .NET's concepts for reflection.

The idea is, to specify a dependency network consisting of dependency nodes. Terminal nodes are either widgets or instances of data model classes. Both are linked via a third class of dependency nodes: Instances of wx.ComponentModel.DataModel. The arcs between these nodes are implemented by references and events: Each dependency node knows depending nodes and, this, propagates changes of values.

Programmers create complex dialogs building an appropriate dependency network first. Then, the leave nodes in this network will be asked for adequate controls using some predefined abstract constructors. These controls will be arranged using sizers. Done!

Refer also to Binding: Linking view layer and application layers

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Enumeration Type Documentation

enum wx::ComponentModel::MessageClass

Classification of messages.

Enumerator:

Error	The message is an error. The latest input cannot be accepted by the system and will be rejected.
Warning	This is a warning message. The latest input will be accepted but another the system recommends to think this over.
Info	This is a message simply for information.

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Function Documentation

delegate void wx.ComponentModel.ValueChangedHandler	(	object	sender,
		ValueChangedEvent	evt
	)

Handler of the ValueChangedEvent.

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