How to access selected item from dropdown in asp.net mvc3

Question

i am using asp.net mvc3 and i populate a create view using following model

Model

public class CategoryModel
{
    public  int Id { get; set; }
    public string Name { get; set; }
    public  string URL { get; set; }
    public  string Description { get; set; }
    public  string Logo { get; set; }
    public  bool IsActive { get; set; }
    public  bool isPopular { get; set; }
    public IList<Category> Parentcategories { get; set; }

}

In my create View i populate like this

View

 <div class="editor-field">
        @Html.DropDownList("parentcategories", new SelectList(Model.Parentcategories.Select(c => c.Name), Model.Parentcategories.Select(c => c.Name)))
        @Html.ValidationMessageFor(model => model.Parentcategories)
    </div>

now how can i access the selected item in my controller method

Method

 [HttpPost]
    public ActionResult Create( CategoryModel model , HttpPostedFileBase file)
    {
     // 
    }

thanks, Ahsan

webdeveloper · Accepted Answer · 2012-11-06 08:39:50Z

1

Try this:

public ActionResult Create(string parentcategories, CategoryModel model , HttpPostedFileBase file)

parentcategories will contain selected option value.

answered Nov 6, 2012 at 8:39

webdeveloper

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2 Comments

Smartboy Over a year ago

is there any way to do it using CategoryModel ?

webdeveloper Over a year ago

@Smartboy Yes, use property and then write DropDownListFor for this property.

Andrew · Accepted Answer · 2012-11-08 13:36:20Z

1

As Smartboy already mentioned, you should use DropDownListFor:
1. append your model with public int ParentCategoryId { get; set; } field.
2. instead of using @Html.DropDownList use:
@Html.DropDownListFor(m => m.ParentCategoryId, new SelectList(...))
3. the server side can stay the same:

[HttpPost]
public ActionResult Create(CategoryModel model)
{
   // 
}

where model.ParentCategoryId will have selected item value.
Also note that you can first set selected item value for your view:

public ActionResult Index()
{
  var model = CategoryModel();
  ...
  model.ParentCategoryId = some_selected_value;
  return View(model);
}

edited Nov 8, 2012 at 13:36

answered Nov 7, 2012 at 0:09

Andrew

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Comments

MVCKarl · Accepted Answer · 2012-11-06 09:00:22Z

0

Details: You can access it directly from your model.

[HttpPost]
public ActionResult Create( CategoryModel model , HttpPostedFileBase file)
{
      var selectedCategory = model.parentcategories;  // something like that
}

answered Nov 6, 2012 at 9:00

MVCKarl

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