Gets or sets a Web server control that can be used for previewing the design-time HTML markup.
Syntax
Value
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Remarks
The ControlDesigner.ViewControl property uses the ControlDesigner.UsePreviewControl property to determine its return value.
If the ControlDesigner.UsePreviewControl property is true, the ControlDesigner.ViewControl property returns a temporary copy of the control. Changes to the temporary control are not persisted.
If the ControlDesigner.UsePreviewControl property is false, the ControlDesigner.ViewControl property returns an instance of the System.ComponentModel.Design.ComponentDesigner.Component property for the control. Changes to the instance of the control are persisted.
The SupportsPreviewControlAttribute.SupportsPreviewControl setting in the System.Web.UI.Design.SupportsPreviewControlAttribute object is used to set the value of the ControlDesigner.UsePreviewControl property. Therefore, the SupportsPreviewControlAttribute.SupportsPreviewControl setting determines the type of control that is returned by the ControlDesigner.ViewControl property in the base System.Web.UI.Design.ControlDesigner class. If the System.Web.UI.Design.SupportsPreviewControlAttribute is not specified in the control designer declaration, the System.Web.UI.Design.ControlDesigner object behavior is equivalent to specifying the SupportsPreviewControlAttribute.SupportsPreviewControl property as false.
Requirements
Assembly: System.Design (in System.Design.dll)
Assembly Versions: 2.0.0.0