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11/17/2011

DebuggerTypeProxyAttribute Class

Microsoft Silverlight will reach end of support after October 2021. Learn more.

Specifies the display proxy for a type.

Inheritance Hierarchy

System.Object
System.Attribute
System.Diagnostics.DebuggerTypeProxyAttribute

Namespace: System.Diagnostics
Assembly: mscorlib (in mscorlib.dll)

Syntax

'Declaration
<ComVisibleAttribute(True)> _
<AttributeUsageAttribute(AttributeTargets.Assembly Or AttributeTargets.Class Or AttributeTargets.Struct, AllowMultiple := True)> _
Public NotInheritable Class DebuggerTypeProxyAttribute _
    Inherits Attribute

[ComVisibleAttribute(true)]
[AttributeUsageAttribute(AttributeTargets.Assembly|AttributeTargets.Class|AttributeTargets.Struct, AllowMultiple = true)]
public sealed class DebuggerTypeProxyAttribute : Attribute

The DebuggerTypeProxyAttribute type exposes the following members.

Constructors

	Name	Description
	DebuggerTypeProxyAttribute(String)	Initializes a new instance of the DebuggerTypeProxyAttribute class using the type name of the proxy.
	DebuggerTypeProxyAttribute(Type)	Initializes a new instance of the DebuggerTypeProxyAttribute class using the type of the proxy.

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Properties

	Name	Description
	ProxyTypeName	Gets the name of the proxy type.
	Target	Gets or sets the target type for the attribute.
	TargetTypeName	Gets or sets the name of the target type for the attribute.

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Methods

	Name	Description
	Equals	Infrastructure. Returns a value that indicates whether this instance is equal to a specified object. (Inherited from Attribute.)
	Finalize	Allows an object to try to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.)
	GetHashCode	Returns the hash code for this instance. (Inherited from Attribute.)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	Match	When overridden in a derived class, returns a value that indicates whether this instance equals a specified object. (Inherited from Attribute.)
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	ToString	Returns a string that represents the current object. (Inherited from Object.)

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Remarks

Use the DebuggerTypeProxyAttribute attribute when you have to significantly and fundamentally change the debugging view of a type without changing the type itself.

This attribute is used to specify a display proxy for a type, and enables you to customize the view for the type. You can also use this attribute at the assembly level; in that case, the Target property specifies the type for which the proxy will be used. In general, this attribute specifies a private, nested type that occurs within the type to which the attribute is applied. An expression evaluator that supports type viewers checks for this attribute when a type is displayed. If the attribute is found, the expression evaluator substitutes the display proxy type for the type that the attribute is applied to.

When the DebuggerBrowsableAttribute is present, the debugger variable window displays only the public members of the proxy type. Private members are not displayed. The behavior of the data window is not changed by attribute-enhanced views.

To avoid unnecessary performance penalties, expression evaluators should not examine the attributes on the display proxy of the type unless the type is expanded, either by the user clicking the plus sign (+) next to the type in a data window, or through the application of the DebuggerBrowsableAttribute attribute. Therefore, we recommend that no attributes be applied to the display type. Attributes can and should be applied within the body of the display type.

Version Information

Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Xbox 360, Windows Phone OS 7.0

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

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.

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