.NET Framework Class Library
ComponentDesignerPreFilterAttributes Method

Allows a designer to add to the set of attributes that it exposes through a TypeDescriptor.

Namespace:   System.ComponentModel.Design
Assembly:  System.Design (in System.Design.dll)
Protected Overridable Sub PreFilterAttributes ( _
	attributes As [%$TOPIC/72a9btsc_en-us_VS_110_2_0_0_0_0%] _
protected virtual void PreFilterAttributes(
	[%$TOPIC/72a9btsc_en-us_VS_110_2_0_1_0_0%] attributes
virtual void PreFilterAttributes(
	[%$TOPIC/72a9btsc_en-us_VS_110_2_0_2_0_0%]^ attributes
abstract PreFilterAttributes : 
        attributes:[%$TOPIC/72a9btsc_en-us_VS_110_2_0_3_0_0%] -> unit  
override PreFilterAttributes : 
        attributes:[%$TOPIC/72a9btsc_en-us_VS_110_2_0_3_0_1%] -> unit


Type: System.CollectionsIDictionary

The attributes for the class of the component.


This method provides a way to add items to the dictionary of attributes that a designer exposes through a TypeDescriptor.

The keys in the dictionary of attributes are the type identifiers of the attributes, as specified by the value of their TypeId property. The objects are of type PropertyDescriptor. This method is called immediately before the PostFilterAttributes method.

Notes to Implementers

You can directly modify the dictionary that is accessible through the attributes parameter, or you can leave it unchanged. If you override this method, call the base implementation before you perform your own filtering.

Version Information

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0
.NET Framework Security

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.