PropertyDescriptor.ShouldSerializeValue Method

When overridden in a derived class, determines a value indicating whether the value of this property needs to be persisted.

Namespace: System.ComponentModel
Assembly: System (in system.dll)

public abstract bool ShouldSerializeValue (
	Object component
public abstract boolean ShouldSerializeValue (
	Object component
public abstract function ShouldSerializeValue (
	component : Object
) : boolean
Not applicable.



The component with the property to be examined for persistence.

Return Value

true if the property should be persisted; otherwise, false.

Typically, this method is implemented through reflection.

Notes to Inheritors: When overridden in a derived class, this method returns true if the current value of the property is different from its default value. It looks for a default value by first looking for a DefaultValueAttribute. If the method finds this attribute, it compares the value of the attribute with the property's current value. If this method cannot find a DefaultValueAttribute, it looks for a "ShouldSerializeMyProperty" method that you need to implement. If it is found, ShouldSerializeValue invokes it. If this method cannot find a DefaultValueAttribute or a "ShouldSerializeMyProperty" method, it cannot create optimizations and it returns true.


The ComponentDesigner class implements special serialization logic for inherited components. For more information, see the remarks in ComponentDesigner.

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

XNA Framework

Supported in: 1.0