CODEWITHSUNDEEP
asp.net-mvchtml-helper
mctayl
mctayl

Reputation: 13

asp.net mvc model binding

I am using asp.net mvc to do model binding. When I pass a model to a view I am able to see the model data displayed in the form inside a label

 <%= Html.Label(Model.title) %>
 <%= Html.Label(Model.description) %>

However I am not able to do the same using 

 <%= Html.TextArea(Model.description)%>

Is there a syntax difference between displaying in a label as oppsed to a textbox?

Here is my view 

<%@ Page Title="" Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage<EditDocumentViewData>" %>


<asp:Content ID="Content1" ContentPlaceHolderID="TitleContent" runat="server">
    Update
</asp:Content>

<asp:Content ID="Content2" ContentPlaceHolderID="MainContent" 
    <h2>Update</h2>
      <form id="myForm"  action="<%=Url.Action("Update") %>"  method="post" >  
   <% Html.EnableClientValidation(); %>
        <div id="validationSummary"><%= Html.ValidationSummary() %> </div>
    <%= Html.ClientSideValidation(typeof(Document))
        .UseValidationSummary("validationSummary") %>
<div style="float:left">

<input type="button" class="btnpost" id="btnMain" value="Main Thumb"/>
    <input id="btnDelete"  class="btnpost" type="button"  value="Delete"/>
    <br />   <br />   <br />

   <br />   <br />   <br />   <br />

    <table>
      <%= Html.HiddenFor(m => m.id)%>

       <tr>   <td> <%=Html.Label("Title")%></td><td>
    <%=Html.TextBox("title", Model.title)%>
    </td> </tr>
      <tr>   <td> <%=Html.Label("Description")%></td><td>
 <%= Html.TextArea("description", Model.description)%>

     </td> 
     <td>
                    <%= Html.ValidationMessage("description")%>

            </td>
     </tr><tr><td> <%=Html.Label("Summary")%></td><td>


   <%= Html.TextAreaFor(m=>m.summary)%>

     </td>  <td>
                    <%= Html.ValidationMessage("summary")%>

            </td></tr>


  </form>    


</asp:Content>

my contollers actions are

[AcceptVerbs(HttpVerbs.Get)]
public ViewResult Update(int Id)
{
    Document doc= _documentRepository.GetById(Id);
    EditDocumentViewData documentViewData=new EditDocumentViewData();
    documentViewData.id = doc.document_id;
    documentViewData.category = doc.Category1.name;
    documentViewData.title = doc.title;
    documentViewData.Thumbs = doc.Thumbs.ToList();
    documentViewData.description = doc.description;

    documentViewData.summary = doc.summary;

    return View(documentViewData);
    // TempData["docid"] = doc.document_id;
    //if (doc  != null)
    //    return View(doc);

    //else
    //    return View("Index");

}
[AcceptVerbs(HttpVerbs.Post)]
public ActionResult Update(EditDocumentViewData editDoc)
{
    Document doc= _documentRepository.GetById(editDoc.id);

    doc.title = editDoc.title;

    doc.description = editDoc.description;

    doc.summary = editDoc.summary;
    _unitOfWorkManager.Commit();
    return RedirectToAction("Index");
}

Upvotes: 1

Views: 3724

Answers (2)

tvanfosson
tvanfosson

Reputation: 532455

In your usage, the first two create label elements and use the argument for the both the text of the label and the label's for property. The third will create a textarea, but it uses the argument as the name for the area. If you want the textarea to contain the contents of the description, you need to use a different signature.

<%= Html.TextArea( "Description", Model.Description ) %>

or use the strongly-typed helper

<%= Html.TextAreaFor( m => m.Description ) %>

On another node, if you simply want to display the contents of the model property, you should be using Encode or the newer <%: %> syntax (in ASP.NET 4).

<span class="description">
<%= Html.Encode( Model.Description ) %>
</span>

Upvotes: 3

mare
mare

Reputation: 13083

    <%= Html.TextAreaFor(model => model.Description, 4, 10, new { style = "width: 100%", @class = "textarea" })%>

Upvotes: 2

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