Is it possible send a List<SelectListemItem> with a dropdownList? RSS

• • Reply
  

  Zoners

  0 Points

  3 Posts

  Is it possible send a List<SelectListemItem> with a dropdownList?

  Mar 21, 2012 04:07 PM|LINK

  I have a problem to send my List<SelectList> into my controller.
  I use a button with the ajax to change the page but i need the model who is the first page to the second page.
  I would like send my model with my List<SelectList> in my controller, it's work if is a simple data but not to dropdownlist with List<SelectListitem>, i would like keep List<SelectListItem> with my object and no keep a simple string when the people click in the dropdownList.

  My model is:

  public class CreateAllStep
  {
  public CreateStep1 Step1 { get; set; }
  public CreateStep2 Step2 { get; set; }
  public CreateAllStep(CreateStep1 step1, CreateStep2 step2)
  {
  this.Step1 = step1;
  this.Step2 = step2;
  }
  }

  My controller is(when the page start):

  public ActionResult Create()
  {
  CreateStep1 step1=FillStep1();
  CreateStep2 step2 = FillStep2();
  CreateAllStep allStep = new CreateAllStep(step1, step2);
  return View(allStep);
  }

  My controller is(when i click on the button, it's here where i would like keep my object with into the List<SelectList>):

  [HttpPost]
  public ActionResult Create(String btn, CreateAllStep form)
  {
  if (Request.IsAjaxRequest())
  {
  if (btn != null)
  {
  if (btn == "Step1")
  {
  return PartialView("Step1",form.Step1);//not work
  }
  else if (btn == "Step2")
  {
  return PartialView("Step2");//work
  }
  else if(btn =="AllStep")
  {
  return PartialView("AllStep");
  }
  }
  }
  return View();
  }
  

  And my main view is :

  @model SiteWebEmpty.Models.CreateAllStep
  @{
  ViewBag.Title = "Title";
  }
  
  <script src="@Url.Content("~/Scripts/jquery.unobtrusive-ajax.min.js")" type="text/javascript"></script>
  
  <h2>Title</h2>
  @using (Ajax.BeginForm("Create", //controller action name
  "CreateStep", //controller name
  new AjaxOptions //ajax options that tell mvc how to perform the replacement
  {
  UpdateTargetId = "ViewPage", //id of div to update
  HttpMethod = "Post" //how to call the controller action 
  }, new { id = "FormName" }))
  {
  @Html.ValidationSummary(true)
  <fieldset>
  <legend>Create </legend>
  <button type="submit" name="btn" value="Step1" id="Step1">Step 1</button>
  <button type="submit" name="btn" value="Step2" id="Step2">Step 2</button>
  <button type="submit" name="btn" value="AllStep" id="AllStep">All Step</button>
  
  <div id="ViewPage">
  @Html.Partial("Step1", Model)
  </div> 
  </fieldset> 
  }
  

  My partial view is:

  @model SiteWebEmpty.Models.ArticleRequest.CreateArticle.ArticleRequestDisplayCreateAllStep
  
  <fieldset>
  <legend>Step 1</legend>
  @Html.LabelFor(step1 => step1.Step1.Customer)
  @Html.EditorFor(step1 => step1.Step1.Customer)
  @Html.ValidationMessageFor(step1 => step1.Step1.Customer)
  
  @Html.LabelFor(articleType => articleType.Step1.ArticleType)
  @Html.DropDownList("ArticleType", Model.Step1.ArticleType)//the problem is here, this send a string and not the all List<SelectListItem>
  @Html.ValidationMessageFor(articleType => articleType.Step1.ArticleType)
  
  @Html.LabelFor(model => model.Step1.LabelType)
  @Html.DropDownList("LabelType", Model.Step1.LabelType)
  @Html.ValidationMessageFor(model => model.Step1.LabelType)
  </fieldset>

  Thanks for your help :) !

  mvc asp.net asp asp.netmvc

• • Reply
  

  mm10

  Contributor

  6409 Points

  1184 Posts

  Re: Is it possible send a List<SelectListemItem> with a dropdownList?

  Mar 30, 2012 08:53 AM|LINK

  Use Html.DropDownListFor In your view:
  @Html.DropDownListFor(m=>m.ArticleType, Model.Step1.ArticleType)

  mvc asp.net asp asp.netmvc

  Please 'Mark as Answer' if this post helped you.
• • Reply
  

  bruce (sqlwo...

  All-Star

  36850 Points

  5445 Posts

  Re: Is it possible send a List<SelectListemItem> with a dropdownList?

  Mar 30, 2012 01:32 PM|LINK

  the broswer does not send the model to the controller (unless you are using javscript and sending json models built in the browser). the browser just does a form post, sending name/value pairs for the form fields (input, textarea, select). mvc when it call the controller action creates a new model and binds the postback values to it.

  a dropdown (select) only sends back the selected value. so if you want the whole selectlist posted back, you will need to serialize it to a hidden field. 

  mvc asp.net asp asp.netmvc

  bruce (sqlwork.com)
  • Marked as answer by ricka6 on Mar 30, 2012 04:49 PM