ModelService Class

Provides the main entry point that the designer uses to obtain the editing model.

Inheritance Hierarchy

System.Object
  Microsoft.Windows.Design.Services.ModelService

Namespace:  Microsoft.Windows.Design.Services
Assembly:  Microsoft.Windows.Design.Interaction (in Microsoft.Windows.Design.Interaction.dll)

Syntax

'Declaration
Public MustInherit Class ModelService

public abstract class ModelService

public ref class ModelService abstract

[<AbstractClass>]
type ModelService =  class end

public abstract class ModelService

The ModelService type exposes the following members.

Constructors

	Name	Description
	ModelService	Initializes a new instance of the ModelService class.

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Properties

	Name	Description
	Root	When overridden in a derived class, gets the root of the object hierarchy.

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Methods

	Name	Description
	ConvertItem	Converts a ModelItem created in another designer to a ModelItem for this designer.
	CreateItem(Object)	When overridden in a derived class, creates a model item that is a deep copy of the specified instance.
	CreateItem(Type, CreateOptions, array<Object[])	When overridden in a derived class, creates a ModelItem object for a specified type.
	CreateStaticMemberItem	When overridden in a derived class, creates a new model item that represents the value of a static member of the specified class.
	Equals	Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
	Finalize	Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
	Find(ModelItem, TypeIdentifier)	When overridden in a derived class, finds matching model items for a specified starting point.
	Find(ModelItem, Predicate<Type>)	When overridden in a derived class, finds matching model items for a specified starting point.
	Find(ModelItem, Type)	When overridden in a derived class, finds matching model items for a specified starting point.
	FromName(ModelItem, String)	Finds the model item in the specified scope with the specified name.
	FromName(ModelItem, String, StringComparison)	When overridden in a derived class, finds the model item in the specified scope with the specified name and comparison criteria.
	GetHashCode	Serves as a hash function for a particular type. (Inherited from Object.)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	ResolveType	Resolves the specified TypeIdentifier to a Type.
	ToString	Returns a string that represents the current object. (Inherited from Object.)

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Events

	Name	Description
	ModelChanged	When overridden in a derived class, occurs when an item in the model has changed.

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Remarks

The ModelService class provides an entry point for the editing model and for global event notifications. ModelService is provided by the serialization engine and is used to gain access to the model.

In addition to the ModelService, the designer must map visuals to underlying model items. A 1:1 mapping between a visual and a model item is not required, but there must be an association between visuals and model items. The ViewService class fulfills this role.

The ModelService and ViewService classes are required for the designer to function. The DesignerView class, which is responsible for processing user input and routing it to commands, requires both of these services to map user input back to the model.

The public methods of ModelService can be called by any code. The protected methods are invoked by the editing model.

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

See Also

Reference

Microsoft.Windows.Design.Services Namespace

ModelItem

ViewService

DesignerView

Other Resources

Editing Model Architecture

WPF Designer Extensibility