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PreFilterProperties Method

ComponentDesigner.PreFilterProperties Method

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

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

protected virtual void PreFilterProperties(
	IDictionary properties
)

Parameters

properties
Type: System.Collections.IDictionary

The properties for the class of the component.

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

The keys in the dictionary of properties are the names of the properties. The objects are of type PropertyDescriptor. This method is called immediately before the PostFilterProperties method.

Notes to Implementers

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

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1
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