CODEWITHSUNDEEP
c#asp.net-mvc-3razorviewmodel
Travis J
Travis J

Reputation: 82297

How to post an object from the view model?

I was hoping this would work :( When debugged the hidden input seems to point to an object but in the post nothing shows up. Here is what I tried (note that I am trying for brevity so this is an example)

Model

public class myViewModel
{
 public MyObject MyObject { get; set; }
 public int MyNumber { get; set; }
}

Controller

public ActionResult displaySimpleView()
{
 var mVM = new myViewModel();
 mVM.MyObject = //let MyObject be filled with 10 fields of data
 return View(mVM);
}

View

@model namespace.myViewModel

//display the fields of data

@using (Ajax.BeginForm("Complete", ajaxOpts))//simple Ajax Options not really relevant
{
@Html.ValidationSummary(true)

@Html.HiddenFor(m => m.MyObject)
@Html.EditorFor(m => m.MyNumber)

<p><input type="submit" value="Go" /></p>
}

Controller Again

[HttpPost]
public ActionResult getMyObject(myViewModel mVM)
{
 mVM.MyObject is null here.
 mVM.MyNumber has a value.
 return RedirectToAction("someGetAction");
}

How can I pass MyObject to getMyObject? I would prefer to not have to have a hidden field for each property and then remap because some of those properties are nested objects.

Upvotes: 2

Views: 259

Answers (1)

Travis J
Travis J

Reputation: 82297

View:

@{
  TempData["passMyObject"] = Model.MyObject;
 }

Controller Post:

var myObject = TempData["passMyObject"];

Upvotes: 2

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