Mvc Model Item Passed In To Dictionary Is Of Type List?
Jul 6, 2010
I have a asp.net mvc view which is strongly typed view and i have a controller which returnsthe ilist user based on the id provided. I am getting the following above error:
The model item passed into the dictionary is of type 'System.Collections.Generic.List`1[Data.User]', but this dictionary requires a model item of type 'Data.User'.
<%@ Page Title="" Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage<Data.User>" %>
<% using (Html.BeginForm())
{%> <%= Html.ValidationSummary(true) %> [code]....
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Jun 30, 2010
i having error throw on View page and i think i am passing wrong type.
The model item passed into the dictionary is of type 'System.Collections.Generic.List1[App.Domain.Model.Interface.IPerson]' but this dictionary requires a model item of type 'System.Collections.Generic.IEnumerable1[App.Domain.Service.PersonService]'.
MyService looks like this....
namespace App.Domain.Service
{
public class PersonService : IPersonService [code].....
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Jan 10, 2011
I am new on MVC and i trying to learn it. My project its about a e-store...
But i got this error:he model item passed into the dictionary is of type 'baraMjukis.ViewModels.ProductViewModel', but this dictionary requires a model item of type 'System.Collections.Generic.IEnumerable`1[baraMjukis.ViewModels.ProductViewModel]'.
And here are my code:
Controller:
[Code]....
ViewModel:
[Code]....
View.aspx
[Code]....
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May 2, 2010
Calling Index view is giving me this very very annoying error . Can anybody tell me what to do about it
Error:The model item passed into the dictionary is of type 'System.Collections.Generic.List1[MvcApplication13.Models.Groups]', but this dictionary requires a model item of type 'MvcApplication13.Helpers.PaginatedList1[MvcApplication13.Models.Groups]'.
public ActionResult Index(int? page)
{
const int pageSize = 10; [code].....
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Apr 1, 2011
I have a problem:
I've created usual Controller and View(Edit view) for editing my Entity (EntityFramework)
Here is view example:
<div class="editor-field">
@Html.EditorFor(model => model.BirthDate)
@Html.ValidationMessageFor(model => model.BirthDate)
</div>
BirthDate is Nullable<DateTime>
but during loading my View I get this exception
The model item passed into the dictionary is null, but this dictionary requires a non-null model item of type 'System.DateTime'.
That's because of BirthDate is null in database but it is nullable and I expect that it just leaves the filed empty.
And I have Shared EditorTemplate:
@model System.Nullable<System.DateTime>
@if (Model.HasValue)
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Sep 3, 2010
While Executing My Contact Management Asp.Net MVC application ,i am getting following error :
The model item passed into the dictionary is of type 'System.Collections.Generic.List`1[ContactManagementSystem.Models.EmployeeMaster]', but this dictionary requires a model item of type 'ContactManagementSystem.Models.ViewData.IndexModel'.
from index.aspx View
My index.aspx Code is
like
<%@ Page Title="" Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage<ContactManagementSystem.Models.ViewData.IndexModel>" %>
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Nov 10, 2010
I have a requirement in my application that, while saving the application, need to get all the value from drop down list and pass it to the view model. But application should not allow the user to select more than one item from drop down list manually, ie, only one value at a time. My view model is like ...
public class ListManagement
{
public IEnumerable<selectListItem> InactiveProduct { get; set; }
public string[] InactiveProductSelected { get; set; }
public IEnumerable<selectListItem> ActiveProduct { get; set; }
}
[code]...
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Aug 12, 2010
I am working with a model which has the following, basically a Project can have a score between -5 and 5 and I'd like to show a dropdownlist of the available options, i.e 5,4,3,2,1,0,-1,-2,-3,-4,-5.
[Required(ErrorMessage = "Score is required")]
[Range(-5, 5, ErrorMessage = "Score must be between -5 and 5")]
[DisplayName("Score")]
public double Value
{
get { return value; }
set { this.value = value; }
}
What would be the best way to accomplish this using a dropdown list and how can I make the score of 0 the
default selection?
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Jul 23, 2010
I'm using Model-View-Presenter framework. When Loading a page, I'm having trouble setting the selected item that came from the Database.
In view, I know I need:
protected void ddlStatus_SelectedIndexChanged(object sender, EventArgs e)
{
presenter.DdlStatusSelectedIndexChanged();
// what should this pass?
}
Then in Presenter:
public void DdlStatusSelectedIndexChanged()
{
view.DdlStatus = ???
// Should I pass the SelectedIndex?
}
I also think that part of my problem is that DdlStatus I have as a List.
Interface:
List<StatusDTO> DdlStatus { set; get; }
The best I found is here (but needs formatted!) ---> [URL]
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Apr 20, 2010
i have a dropdown list with values
America
Asia
Europe
I need to the display the ddl as Select Type and when i click the dropdownlist to see the values in it, it should display the three values, but i should not use Select Type as a list item and it should not be displayed in the list. It should only be used as a default text in ddl.
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Feb 11, 2011
I'm about to begin an ASP.NET MVC project and I'm not sure how to approach an aspect of the design. Basically, there is a user site and an admin site. In the admin sites, administartors design a form and send an e-mail link out to a handful of people. When the users click on the link, they are sent to the form.
Essentially what I'm wondering is what are the best practices when the model resembles looks more like a dictionary than a table?
In other words, instead of:
CREATE TABLE FormResponse (ResponseId, FormId, UserId, FirstName, LastName, BirthDay, Comments)
...containing 1 row per complete response
It's more like:
CREATE TABLE FormResponse (ResponseId, FormId, UserId, QuestionId, Value)
...containing 4 rows. 1 for the FirstName, 1 for the LastName, 1 for the BirthDay, and 1 for Comments.
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Mar 31, 2011
Why is a null parameter being passed to the following controller action?
public FileContentResult GetImageForArticle(ArticleSummary article)
{
if (article == null || !article.ContainsValidThumbNail()) return null;
return File(article.ThumbNail, article.ThumbNaiType);
}
from the following partial view:
<%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl<IEnumerable<AkwiMemorial.Models.ArticleSummary>>" %>
<%if (Model.Count() > 0) [code]...
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Apr 4, 2011
Given the following view model and action using the DefaultModelBinder, it seems to ignore the dictionary, but bind all other properties correctly. Am I missing something here? Looking at the MVC source code this seems legit.
public class SomeViewModel
{
public SomeViewModel()
{[code].....
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Aug 19, 2010
I have a form which uploads a photo to my database, and I use a view model to aid in this process.
View Model:
public class GalleryViewModel
{
//Members:
public Gallery _photo { get; set; }
public string _title { get; set; }[code]...
When I debug the code, I see that the in the post method in my controller, all the information from the form is updated in the view model except for the uploadFile which is null.In the form I use enctype = "multipart/form-data". When I use my master page the uploadFile is null but when I use the default MVC master page everything works fine.
Here is my master page:
<%@ Master Language="C#" MasterPageFile="~/views/Shared/GeneralMaster.master" Inherits="System.Web.Mvc.ViewMasterPage" %> [code]....
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Jul 20, 2010
I have a service. I have an existing class of business objects. What I would like to know is how can I pass a class through WCF from the business object assembly without having to create a new class in my WCF site while appending or tags?
Here is an existing UDT:
[code]....
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Apr 9, 2010
This might sound like a stupid question, is there a way to add an item to the very top of generic dictionary instead of adding it to end?
Here is my code snippet:
[Code]....
I want to add an item of ["", ""] to the very top of dicGetCategoryId.
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Mar 28, 2011
The following code has only thrown a NullReferenceException a handful of times over the last several months, but I'm not exactly sure why. The code isn't mine, but it looks pretty straight forward to me.
[Code]....
The only thing I can think of is that pageType is null when it's being used as a dictionary key, but apparently that is not possible.
The code that calls it is simple:
protected override void OnLoad(EventArgs e)
{
base.OnLoad(e);
_mypage = GetPage();
}
I also thought that the error might be with the _section.Pages, but section is never null and never sets anything. If .Pages[page] returns null, the MyPage constructor simply returns. So what am I missing?
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Jan 19, 2011
I am using C#. I have got below format values in my SESSION variable ["FROMDATA"], I am using DICTIONARY to store the FORM Posted Data. see the related question.
Below are the some values in my SESSION Variable.
1) key - "skywardsNumber" value-"99999039t"
2) key - "password" value-"a2222222"
3) key - "ctl00$MainContent$ctl22$FlightSchedules1$ddlDepartureAirport-suggest" value-"London"
4) key - "ctl00$MainContent$ctl22$ctl07$txtPromoCode" value-"AEEGIT9"
.
.
....so on
Now I want to create a CLASS with METHOD in it, in which I will just pass the "KEY" and it will first check it for NULL OR EMPTY and then it will return its value from the SESSION Variable ["FROMDATA"].
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Jun 17, 2010
if I use a Html.Hidden field in my view, when the value click to submit the form I would like to pass this data to the controller. This variable would contain int as key and string as value,
Dictionary<int, string> interestTable = new Dictionary<int, string>();
How can I specify the htmlAttribute fo this variable in my Html.Hidden code?
<% using(Html.BeginForm("Search", "SearchMembers")) { %>
<input type="hidden" name="ResearchInterests" id="researchInterests" value=""/>
<%= Html.Hidden("fullInterestsPath") %>,
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Apr 2, 2010
I am having problem with rowdatabound, want to add if conditions intact, i am using teh following two if conditions and they don't look right. i found them on google.
If e.Row.RowState = DataControlRowState.Normal Or e.Row.RowState = DataControlRowState.Alternate Then end if
If e.Row.RowState = DataControlRowState.Edit Or e.Row.RowState = 5 Then end if
With datagrids i use these and they work excellent:
If e.Item.ItemType = System.Web.UI.WebControls.ListItemType.Item OrElse e.Item.ItemType = System.Web.UI.WebControls.ListItemType.AlternatingItem Then
end if.....
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Feb 5, 2010
What would be the most efficient way of storing a set of values in a session? I'm guessing it's either a List/Array or Dictionary. Basically, when a user selects an item from a DropDownList, a value (between 1 and N where N <= 20) is sent back to the server. I'd then like this value to be used as an index (if using arrays) or key (if using a dictionary) within the session. I don't want the value to be seen by the user, hence why it's not stored in the DDL. From what I gather, dictionaries are designed for key-lookups. However, since the scale is quite small, are there any overheads of using a dictionary that could make it less efficient in this case? Each corresponding value is unique to the user, so I've decided to use sessions.
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Mar 25, 2011
I'm binding a Dictionary to a drop down list.
Say for example I have the following items in dictionary:
{"Test1", 123}, {"Test2", 321}
I'd like the drop down text to take the following format:
Test1 - Count: 123
Test2 - Count: 321
I was going along the following path with no luck:
MyDropDown.DataTextFormatString = string.Format("{0} - Count: {1}", Key, Value);
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May 16, 2010
I'm trying to move to a DataList control of a dictionary list
Dictionary <string, List <string>>
where should I insert the key and the list nell'HeaderTemplate nell'itemTemplate, but I do not know how.I tried to create the ItemDataBound event:
[Code]....
but it gives me error code sula first lien and tells me that there is no reference
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Mar 4, 2010
Eg:-- When I type "A" all the elements starting with A should be displayed... If "B" then elements with B....etc)
Ex:
<asp:DropDownList ID="ddlLocation" style="width:140px" runat="server">
<asp:ListItem Value="1" >India</asp:ListItem>
<asp:ListItem Value="2" >India - Hyderabad</asp:ListItem>
<asp:ListItem Value="3">South Africa</asp:ListItem>
<asp:ListItem Value="4">Australia</asp:ListItem>
</asp:DropDownList>
javascript :
function DisplayText()
{
var textboxId = '<% = txtText.ClientID %>';
var dropdownListId = '<% = ddlLocation.ClientID %>';
document.getElementById(textboxId).value = document.getElementById(dropdownListId).value;
document.getElementById(textboxId).focus();
}
code behind :
ddlLocation.Attributes.Add("onChange", "DisplayText();");
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Feb 10, 2010
I have a list with 2 sorts of items. Items that have actual values (1,2,3,4 etc) and items that are like group headings so all their values are set to 0. If someone decides to select a group heading - which has a value of 0, is it possible to redirect them to my 'Select an item' item which has a value of ""?
If worse comes to worse, I can just reconstruct the entire list, although if possible I'd like to avoid it.
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