internal WebBrowserContainer GetParentContainer() {
     if (container == null) {
         container = WebBrowserContainer.FindContainerForControl(this);
     }
     if (container == null) {
         container = CreateWebBrowserContainer();
         container.AddControl(this);
     }
     return container;
 }
 internal WebBrowserContainer CreateWebBrowserContainer()
 {
     if (wbContainer == null)
     {
         wbContainer = new WebBrowserContainer(this);
     }
     return wbContainer;
 }