You can use a View's IBaseDocumentProperties.AllowDock property to specify whether all documents within a View can be activated. A document's AllowDock property allows you to override this setting for individual documents.
If the AllowDock setting is set to DefaultBoolean.Default, the actual setting is specified by the View's IBaseDocumentProperties.AllowDock property. Otherwise, the actual setting is specified by the AllowDock property.
A View's IBaseDocumentProperties.AllowDock property is accessible via the BaseView.DocumentProperties object. A document's AllowDock property is accessible via the BaseDocument.Properties object.
To learn about floating and docked documents, see BaseView.FloatDocuments.