ASP.Net MVC ViewData collection does not contain my object RSS

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  dbuttric

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  ASP.Net MVC ViewData collection does not contain my object

  Oct 22, 2008 06:25 PM|LINK

  Hi,

  I'm trying to learn to use the ASP.Net MVC. I've been following the tutorials, which are great, but I've bumped into a problem that I'm hoping someone can help me with.

      Function Index()
          Dim dataContext = New PATSimDataContext()
          Dim deletedvisits = From v In dataContext.VisitAudits Select v
          Return View(deletedvisits)
      End Function

  Thats the Index function in my controller.

  Here's my View:

  <%@ Page Language="VB" MasterPageFile="~/Views/Shared/Site.Master" AutoEventWireup="false" CodeBehind="Index.aspx.vb" Inherits="PATSimRestore.Index" %>
  <%@ Import Namespace="PATSimRestore" %>
  <asp:Content ID="indexContent" ContentPlaceHolderID="MainContent" runat="server">
      <ul>
      <% For Each v As VisitAudit In ViewData.deletedvisits%>
         
          <li><%v.VisitDate%></li>
      
      <% Next%>
      </ul>
  </asp:Content>

  But I get his error when I try to build this project:

   'deletedvisits' is not a member of 'System.Web.Mvc.ViewDataDictionary'.
  
  Can someone shed some light on what I need to do to fix this?

  Thanks.

  David Buttrick
  

  • Moved by SGWellens on Oct 22, 2008 06:34 PM
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  tgmdbm

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  Re: ASP.Net MVC ViewData collection does not contain my object

  Oct 23, 2008 12:43 AM|LINK

  firstly,  From v In dataContext.VisitAudits Select v is the same as just saying dataContext.VisitAudits

  ---
  

   Return View(deletedvisits) sets the Model property on the ViewData object to deletedvisits.

  so it would be

   For Each v As VisitAudit In ((IEnumerable<VisitAudit>) ViewData.Model )

  unless the page derives from ViewPage<IEnumerable<VisitAudit>>, if so you don't need the cast.
  

  ---

  Another way to do it is

  ViewData["deletedvisits"] = deletedvisits;
  Return View();

   For Each v As VisitAudit In ((IEnumerable<VisitAudit>) ViewData.["deletedvisits"] )

   

  • Marked as answer by tgmdbm on Oct 25, 2008 02:59 AM