How can I cache objects in ASP.NET MVC?

Question

I\'d like to cache objects in ASP.NET MVC. I have a BaseController that I want all Controllers to inherit from. In the BaseController there is a User

Answer 1

If you want it cached for the length of the request, put this in your controller base class:

public User User {
    get {
        User _user = ControllerContext.HttpContext.Items["user"] as User;

        if (_user == null) {
            _user = _repository.Get(id);
            ControllerContext.HttpContext.Items["user"] = _user;
        }

        return _user;
    }
}

If you want to cache for longer, use the replace the ControllerContext call with one to Cache[]. If you do choose to use the Cache object to cache longer, you'll need to use a unique cache key as it will be shared across requests/users.