CODEWITHSUNDEEP
asp.net-mvc-3
dizarter
dizarter

Reputation: 447

ASP.NET MVC 3 - Passing variable model to controller

I have this controller

public class DownloadController : Controller
{
    [HttpPost]
    public FileContentResult GetFile(MyModel model)
    {
        // Action code
    }
}

And this model

public class MyModel
{
    public string Test { get; set; }
}

Passing model from the View to the controller works fine like this

@using (Html.BeginForm("GetFile", "Download", FormMethod.Post))
{
    @Html.HiddenFor(m => m.Test)
    <button type="submit" name="submit" class="submit">Download</button>
}

The model is correctly passed to the controller and I can do what I need to do with it.

Now, what I'm trying to achieve is to make this GetFile() controller action to be generic, so I can pass it any model, without strongly typing the model class in method signature, like I did in the example above.

I know I can achieve this by overriding GetFile() method once for each model that I have, but I'm wondering is there a better way to do this, to stay DRY as much as possible?

Thank you.

Upvotes: 0

Views: 1278

Answers (1)

Jason Evans
Jason Evans

Reputation: 29186

I'd suggest using a base class:

public class BaseGetFileModel {}

which various models will derive from.

[HttpPost]
public FileContentResult GetFile(BaseGetFileModel model)

EDIT:

OK, if you want a generic way of doing this, then you could do this:

[HttpPost]
public FileContentResult GetFile()
{
    var someValue = Request["SomeValue"];
}

You don't accept any model parameter, you simply pick up POST'd values from the request. Or you could iterate through the request values collection, if you want to avoid hard-coding key names.

Upvotes: 1

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