A resource provider factory creates resource providers and resource writers, depending on the current settings in the system.web/globalization section of the configuration file (either the Machine.config or Web.config files for both global and local resources). If no globalization settings are found, the serviceProvider parameter is used to create a System.Web.UI.Design.DesignTimeResourceProviderFactory object using the default implementation for the design host.

Typically, control developers will not override the ControlDesigner.GetDesignTimeResourceProviderFactory(IServiceProvider) method.