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LoginDesigner::PreFilterProperties Method

Used by the designer to remove properties from or add additional properties to the display in the Properties grid or to shadow properties of the associated control.

Namespace:  System.Web.UI.Design.WebControls
Assembly:  System.Design (in System.Design.dll)

virtual void PreFilterProperties(
	IDictionary^ properties
) override


Type: System.Collections::IDictionary

A collection implementing the IDictionary of the added and shadowed properties.

Control designers use methods that are derived from the ComponentDesigner::PreFilterProperties method to shadow various control properties with corresponding design-time properties that the designer implements, and to add properties to or remove properties from the Properties grid.

If a LayoutTemplate property has been defined for the Login control, the PreFilterProperties sets the BrowsableAttribute attribute of properties that do not apply when templated to false so those properties do not appear in the Properties grid.

Notes to Inheritors

Override the PreFilterProperties method to add properties to or change attributes of properties in the design-time property collection. Be sure to call the base method before performing other processing.

The following code sample creates a class derived from LoginDesigner, and overrides the PreFilterProperties method to change the Properties grid of a Login control at design time. The example makes the NamingContainer property visible in the Properties grid.

No code example is currently available or this language may not be supported.

.NET Framework

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