MarkupExtensionReturnTypeAttribute Constructor (Type, Type)

Note: This API is now obsolete.

Do not use, see Remarks.

Namespace:  System.Windows.Markup
Assembly:  System.Xaml (in System.Xaml.dll)

[ObsoleteAttribute("The expressionType argument is not used by the XAML parser. To specify the expected return type, use MarkupExtensionReturnTypeAttribute(Type). To specify custom handling for expression types, use XamlSetMarkupExtensionAttribute.")]
public MarkupExtensionReturnTypeAttribute(
	Type returnType,
	Type expressionType
)

Parameters

returnType
Type: System.Type

The return type that this  .NET Framework attribute reports.

expressionType
Type: System.Type

Do not use; see Remarks.

The form of MarkupExtensionReturnTypeAttribute that reports a second parameter for an expression is deprecated/obsolete and should not be used. If an expression or other type or model for deferred evaluation is a possible return type, you should attribute with a return type of Object instead.

.NET Framework

Supported in: 3.5 SP1, 3.0 SP2
Obsolete (compiler warning) in 4.6
Obsolete (compiler warning) in 4.6
Obsolete (compiler warning) in 4.5
Obsolete (compiler warning) in 4.5.1
Obsolete (compiler warning) in 4.5.2
Obsolete (compiler warning) in 4

.NET Framework Client Profile

Supported in: 3.5 SP1
Obsolete (compiler warning) in 4
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