mvc3: html.beginform search returning empty querystring

Question

In an MVC3 app, i have the following View:

@using (Html.BeginForm("Index", "Search", new {query = @Request.QueryString["query"]}, FormMethod.Post))
{
   <input type="search" name="query" id="query" value="" />
}

When i type in the url "/Search?query=test", Request.Querystring in my Index action reads out the search-value perfectly well (i have my routes set to ignore the Action in the url). When i type it in the seachbox, it hits the right action and controller (so the routing seems fine) but the querystring remains empty. What am i doing wrong?

dknaack · Accepted Answer · 2012-02-14 15:59:45Z

4

The Problem is that you are look in the Request.QueryString collection. But you are doing a POST so the query value is in the Request.Form Collection. But i think you want your TextBox filled with the data so can do it like in my sample.

Sample

@using (Html.BeginForm("Index", "Home", FormMethod.Post))
{
   <input type="search" name="query" id="query" value="@Request.Form["query"]" />
}

But this is not the real MVC approach. You should create a ViewModel for that.

Model

namespace MyNameSpace.Models
{
    public class SearchViewModel
    {
        public string Query { get; set; }
    }
}

View

@model MyNameSpace.Models.SearchViewModel

@using (Html.BeginForm("Index", "Home", FormMethod.Post))
{
   @Html.TextBoxFor(x => x.Query)
   <input type="submit" />
}

Controller

public ActionResult Index()
{
    return View(new SearchViewModel());
}

[HttpPost]
public ActionResult Index(SearchViewModel model)
{
    // do your search
    return View(model);
}

edited Feb 14, 2012 at 15:59

answered Feb 14, 2012 at 15:42

dknaack

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4 Comments

stefjnl Over a year ago

hi dknaack, thanks for ur quick reply.. im afraid changing the order order of the parameters doesnt make a difference..

stefjnl Over a year ago

hi dknaack, that did the trick! its in Request.Form. thanks! and for what do you mean i should make a ViewModel?

dknaack Over a year ago

@jim it does. But the ViewModel solution is the real answer.

stefjnl Over a year ago

dknaack, thanks for your extensive reply. ill go and implement your real MVC example :)

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But this is not the real MVC approach. You should create a ViewModel for that.

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