TypeExtension.ProvideValue(IServiceProvider) Method

Reference

Definition

Namespace:: System.Windows.Markup

Assembly:: PresentationFramework.dll

Assembly:: System.Xaml.dll

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Returns an object that should be set on the property where this extension is applied. For TypeExtension , this is the Type value as evaluated for the requested type name.

public:
 override System::Object ^ ProvideValue(IServiceProvider ^ serviceProvider);

public override object ProvideValue (IServiceProvider serviceProvider);

override this.ProvideValue : IServiceProvider -> obj

Public Overrides Function ProvideValue (serviceProvider As IServiceProvider) As Object

Parameters

serviceProvider: IServiceProvider

Object that can provide services for the markup extension. The provider is expected to provide a service for IXamlTypeResolver.

Returns

Object

The Type to set on the property where the extension is applied.

Exceptions

InvalidOperationException

member value for the extension is null.

ArgumentException

Some part of the typeName string did not parse properly.

-or-

serviceProvider did not provide a service for IXamlTypeResolver

-or-

typeName value did not resolve to a type.

ArgumentNullException

serviceProvider is null

Remarks

You can pass null for serviceProvider, but only if this TypeExtension instance was established with an initial true type in the constructor rather than a typeName. Otherwise, this markup extension implementation relies on services based on the passed serviceProvider. It must not be null. The serviceProvider is expected to provide a service for IXamlTypeResolver.

Applies to

Partajați prin