The topic you requested is included in another documentation set. For convenience, it's displayed below. Choose Switch to see the topic in its original location.

ReferenceConverter.IsValueAllowed Method

Returns a value indicating whether a particular value can be added to the standard values collection.

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

protected virtual bool IsValueAllowed(
	ITypeDescriptorContext context,
	Object value


Type: System.ComponentModel.ITypeDescriptorContext

An ITypeDescriptorContext that provides an additional context.

Type: System.Object

The value to check.

Return Value

Type: System.Boolean
true if the value is allowed and can be added to the standard values collection; false if the value cannot be added to the standard values collection.

This method is called for each value that matches the type associated with this ReferenceConverter and for each component found that is of the associated type. By default, this method returns true, that is, it allows adding the value into the standard values collection.

Notes to Inheritors

Override this method when you do not want to add a value to the standard values collection.

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

© 2014 Microsoft