Class TypeExtension

Implements a markup extension that returns a Type based on a string input.

Inheritance

System.Object

MarkupExtension

TypeExtension

Implements

IMarkupExtension<System.Object>

Inherited Members

System.Object.Equals(System.Object)

System.Object.Equals(System.Object, System.Object)

System.Object.GetHashCode()

System.Object.GetType()

System.Object.MemberwiseClone()

System.Object.ReferenceEquals(System.Object, System.Object)

System.Object.ToString()

Namespace: System.Windows.Markup

Assembly: OpenSilver.dll

Syntax

[TypeConverter(typeof(TypeExtensionConverter))]
public class TypeExtension : MarkupExtension, IMarkupExtension<object>

Constructors

TypeExtension()

Initializes a new instance of the TypeExtension class.

Declaration

public TypeExtension()

TypeExtension(String)

Initializes a new instance of the TypeExtension class, initializing the TypeName value based on the provided typeName string.

Declaration

public TypeExtension(string typeName)

Parameters

Type	Name	Description
System.String	typeName	A string that identifies the type to make a reference to. This string uses the format prefix:className. prefix is the mapping prefix for a XAML namespace, and is only required to reference types that are not mapped to the default XAML namespace.

Exceptions

Type	Condition
System.ArgumentNullException	Attempted to specify typeName as null.

TypeExtension(Type)

Initializes a new instance of the TypeExtension class, declaring the type directly.

Declaration

public TypeExtension(Type type)

Parameters

Type	Name	Description
System.Type	type	The type to be represented by this TypeExtension.

Exceptions

Type	Condition
System.ArgumentNullException	type is null

Properties

Type

Gets or sets the type information for this extension.

Declaration

public Type Type { get; set; }

Property Value

Type	Description
System.Type	The established type. For runtime purposes, this may be null for get access, but cannot be set to null.

Exceptions

Type	Condition
System.ArgumentNullException	Attempted to set to null.

TypeName

Gets or sets the type name represented by this markup extension.

Declaration

public string TypeName { get; set; }

Property Value

Type	Description
System.String	A string that identifies the type. This string uses the format prefix:className. (prefix is the mapping prefix for an XML namespace and is only required to reference types that are not mapped to the default XML namespace for WPF (http://schemas.microsoft.com/winfx/2006/xaml/presentation).

Methods

ProvideValue(IServiceProvider)

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.

Declaration

public override object ProvideValue(IServiceProvider serviceProvider)

Parameters

Type	Name	Description
System.IServiceProvider	serviceProvider	Object that can provide services for the markup extension. The provider is expected to provide a service for IXamlTypeResolver.

Returns

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

Overrides

MarkupExtension.ProvideValue(IServiceProvider)

Exceptions

Type	Condition
System.InvalidOperationException	member value for the extension is null.
System.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.
System.ArgumentNullException	serviceProvider is null.

Implements

IMarkupExtension<T>