How can i pass generic type from view to controller

Question

I want my MVC View send a type to action result as parameter so that i could use that type in my generic class

    public ActionResult ManageData(T genericType) 
    {
        var result = new BaseData<genericType>().GetSharedData();
        return View(result);
    }

@Sweeper: I think he means `public ActionResult ManageData(Type genericType) ` — Flater, Sep 10 '19 at 13:54
@Sweeper BaseData can get different types, and i want get these types from view — Hamid Noahdi, Sep 10 '19 at 14:09
this doesn't make sense as its the same same as object, you are trying to use the construct wrong.`public ActionResult ManageData(object objThing) ` — Seabizkit, Sep 10 '19 at 14:18
where as if you returned it as said thing it would make more sense `public BaseData() ManageData("some in data if needed")` — Seabizkit, Sep 10 '19 at 14:20

score 0 · Accepted Answer · answered Sep 15 '19 at 17:51

0

You can't have generic controller methods. I'm not sure whats your use-case but you could do something like this

public ActionResult ManageData(string type) 
{
    switch (type) {
        case 'first':
            return View(new BaseData<FirstType>().GetSharedData());
        case 'second':
            return View(new BaseData<SecondType>().GetSharedData());
        default:
            return View();
    }
}

Of couse you could improve this by moving your switch to some kind of BaseDataFactory or use string enums instead of pure strings for easier and more readable string -> type mapping.

answered Sep 15 '19 at 17:51

zhuber

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it is possible to have generic controllers and thus methods as well, see [answer1](https://stackoverflow.com/a/3418849/5519026), [answer2](https://stackoverflow.com/a/57746572/5519026) – LazZiya Sep 16 '19 at 06:27
1

Those are generic controllers that can be used as base classes and therefore generic type is resolved in compile time and that is not what he is asking for. You can't have generic method on which you pass generic argument dinamically from the client and as far as I understood, he wants that behaviour. – zhuber Sep 16 '19 at 07:32
@LazZiya Please see above. – zhuber Sep 16 '19 at 07:48

How can i pass generic type from view to controller

1 Answers1