Question

I have this code in mvc 3 razor

@using (Html.BeginForm("MyAction", "MyController"))
{
    <input type="text" id="txt" name="txt"/>          
    <input type="image" src="image.gif" alt="" />
}   

in controller I have this code

[HttpPost]
public ActionResult MyAction(string text)
{
    //TODO something with text and return value...
}

now, how to send a new value, for exemple id to Action result??? Thanks

Answer 1

You use a view model:

public class MyViewModel
{
    public string Text { get; set; }

    // some other properties that you want to work with in your view ...
}

and then pass this view model to the view:

public ActionResult MyAction()
{
    var model = new MyViewModel();
    model.Text = "foo bar";
    return View(model);
}

[HttpPost]
public ActionResult MyAction(MyViewModel model)
{
    // remove the Text property from the ModelState if you intend
    // to modify it in the POST controller action or HTML helpers will
    // use the old value
    ModelState.Remove("Text");
    model.Text = "some new value";
    return View(model);
}

and then the view is strongly typed to this model:

@model MyViewModel

@using (Html.BeginForm("MyAction", "MyController"))
{
    @Html.EditorFor(x => x.Text)
    <input type="image" src="image.gif" alt="" />
}