I would like to have a very lightweight ASP.NET MVC site which includes removing as many of the usual HttpModules as possible and disabling session state. However when I try to do this, I get the following error:
The SessionStateTempDataProvider requires SessionState to be enabled.
I've disabled session state in web.config:
<sessionState mode="Off" />
I understand that ASP.NET MVC uses session state for TempData, but I don't need/want TempData - I just want to disable session state. Help!
You could make your own ControllerFactory and DummyTempDataProvider. Something like this:
public class NoSessionControllerFactory : DefaultControllerFactory
{
protected override IController GetControllerInstance(Type controllerType)
{
var controller = base.GetControllerInstance(controllerType);
((Controller) controller).TempDataProvider = new DummyTempDataProvider();
return controller;
}
}
public class DummyTempDataProvider : ITempDataProvider
{
public IDictionary<string, object> LoadTempData(ControllerContext controllerContext)
{
return new Dictionary<string, object>();
}
public void SaveTempData(ControllerContext controllerContext, IDictionary<string, object> values)
{
}
}
And then you would just need to register the controller factory on app startup - e.g. you could do this in global.asax:
ControllerBuilder.Current.SetControllerFactory(new NoSessionControllerFactory());