MVC Controller UpdateModel Not Updating?
Sep 22, 2010
Trying to get UpdateModel to work for my User. The User class has basic string properties like CompanyName, FirstName, LastName, etc so nothing exotic. Here is the header for my view:
<%@ Page Title="" Language="C#" MasterPageFile="~/Views/Shared/Public.Master" Inherits="System.Web.Mvc.ViewPage<User>" %>
After they submit, in my controller, the code looks like this:
[HttpPost]
public ActionResult Edit(string id, FormCollection collection)
{
[code]...
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Similar Messages:
Apr 22, 2010
I have just upgraded a large project to MVC 2 (50+ controllers) and whilst the project builds fine I am having issues in several places because it looks like the way the Controller.UpdateModel method handles emtpy strings has changed.
In MVC 1 it set the associated property to an empty string but in MVC2 it's setting it to null.
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Apr 22, 2010
I have just upgraded a project from MVC 1 to 2 and I have come across an issue with fields updated via UpdateModel which contain an emtpy string.
In MVC 1 the associated property would be set to String.Emtpy or "", but in MVC 2 it's set to null. This is causing me all kinds of problems
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Jan 12, 2010
I have a view model class that looks something like this
public class ViewModel
{
public string Name { get; set; }
public IList<SubViewModel> Subs { get; set; }
}
[code]...
Now when I call try update model it replaces the "Subs" list with a new one rather than just updating the IsSet property at the correct index.
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Dec 28, 2010
UML and Patterns: An Introduction to Object-Oriented Analysis and Design and Iterative Development, that follows the UP(Unified Process). It uses a Grasp Controller pattern to interact with domain classes by some methods like NewSale(), AddNewItemToSale() and CloseSale. In windows form, I can instantiate a object of this class in the UI and then use its methods to perform the actions. This works well in Client apps, but when I use asp.net mvc, I cannot find a way to instantiate an object (one for each user) that was always visible for a Controller (MVC). I cannot insert as an attribute inside Controller because it always create a new one.
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Mar 9, 2010
I have been trying to develop edit functionality for a table in database using LINQ to SQL classes (.dbml). Thoiugh updatmodel does not fail, it still does not update the database. I have tried several different things with no resort. I have something going live in a day or so, Below is my code for controller class in MVC 1.1
//Homecontroller.cs
//Overload edit view for postback
[AcceptVerbs(HttpVerbs.Post)]
public object Edit(Guid id, FormCollection form)
{
//Get the row ID which is being edited
var Weballoc = db.WebAllocationImports.Single(w => w.OGReference == id);
try
{
// Weballoc.Side = Request.Form["Side"].ToString();
// Weballoc.Commission = Convert.ToDouble(Request.Form["Commission"]);
UpdateModel(Weballoc, new[] { "ClientSubAccount", "Quantity", "TradeDate", "SecurityID", "Side", "Commission", "NetAmount", "TradeID", "Price" });
db.SubmitChanges();
}
catch (Exception ex)
{
}
return View("ShowCGMAllocations",allocation);
The following is a sample of my edit.aspx view
<% using (Html.BeginForm()) {%>
<fieldset>
<legend>Fields</legend>
<p>
<label for="ClientSubAccount">ClientSubAccount:</label>
<%= Html.TextBox("ClientSubAccount", Model.ClientSubAccount) %>
<%= Html.ValidationMessage("ClientSubAccount", "*") %>
</p>
}
<p>
<input type="submit" value="Save" />
</p>
</fieldset>
<% } %>
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Mar 11, 2011
I've been struggling with this issue for a few days now and I'm still not able to figure it out. I've created a sample project to hopefully help figure this issue out. The main issue is when I load a user from my context and perform an UpdateModel() on this object it seems to delete my entity references and I get null references in child objects. Here is the error: The operation failed: The relationship could not be changed because one or more of the foreign-key properties is non-nullable. When a change is made to a relationship, the related foreign-key property is set to a null value. If the foreign-key does not support null values, a new relationship must be defined, the foreign-key property must be assigned another non-null value, or the unrelated object must be deletedHere is the link to the code:
Here (line 42, causes the error to happen)
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May 1, 2010
this is the code i am using for update model
[Code]....
on the line 2 i set new value to OrderDate.but after this step OrderDate get value of text box in view.the value of text box is shamsi date and on line 2 i convert that date to miladi date.why OrderDate get shamsi date?
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Jan 13, 2011
[Code]....
for some reason, when oldIndex is not 0, and the first "for" loop is running, "UpdateModel" is trying to change the ID field instead of the Index field.if it's 0, and only the second "for" is running all goes well.I'm trying to figure out what's the diference between the loops, and i don't seem to get it?
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May 4, 2010
as the behaviour of the UpdateModel<T> changed in MVC 2 (RTM)? Since then I have the following problem when UpdateModel is called:UpdateModel<T1>(record, properties);record is typeof(Jumbo.Juist.Models.Bezorging) and properties is a string[] containing "Winkelnummer" and "OudRoutenummer".This now fails, because a get-property is being accessed: BerekendeAankomstTijd. In the past, it didn't fail. IMHO, this validation should be skipped, because it's only a getter (and thus/also not included in the string[] of properties to update)
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Jan 14, 2010
Exception Details: System.ArgumentException: Value cannot be null or empty.Parameter name: nameI am following the example in the ASP.NET MVC Framework unleashed page229.
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Aug 14, 2010
How does UpdateModel() works? In the mvcmusic application the postback code contained the following:
UpdateModel();
storeDb.saveChanges();
How is this automatically saving changes to database?
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Apr 8, 2010
This is probably something silly I'm missing but I'm definitely lost. I'm using .NET 4 RC and VS 2010. This is also my first attempt to use UpdateModel in .NET 4, but every time I call it, I get an exception saying Value cannont be null or empty. I've got a simple ViewModel called LogOnModel:
[Code]....
My view uses the new strongly typed helpers in MVC2 to generate a textbox for username and one for the password. When I look at FormCollection in my controller method, I see values for both coming through.
And last but not least, here's are post controller methods:
[Code]....
why UpdateModel would be throwing this exception?
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Sep 16, 2010
I have a view that gets posted back to my controller and I can call updatemodel pass in the FormCollection and everything in the view gets updated and works great etc... The problem is, this view contains several PartialViews that I just can't seem to get the UpdateModel helper to update. All this stuff is strongly typed, I mean my overall viewmodel has properties that expose the data to my partialviews.
(just for clarity see below code, "Model" has a property called "AreaListViewModel", which has a property called Areas. "AreaList" is the partialview/usercontrol).
<% Html.RenderPartial("AreaList", Model.AreaListViewModel.Areas); %>
I'm convinced it is either something to do with the way I add the data to my partialview, ike HtmlTextBoxFor syntax. OR the UpdateModel syntax. As mentioned I get my form data back as a "FormCollection".
[AcceptVerbs(HttpVerbs.Post)]
public ActionResult Details(int Id, FormCollection formData)
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May 27, 2010
The following action in my controller does not update the Model property which is bound by a radio buttons group (all are named "ListType") when the form is submitted. On the Edit.ASPX form, I used JQuery to reset the radio buttons group. When setting other type of input elements on the form to blank or checked=false, those Model properties are set accordingly upon submission. Does anyone know how to set radio buttons to unched state?
Also I am trying to get the SqlException to show up in my form where I have Html.ValidationSummary helper. My ModelState helper captures the know business rules violations, but I am unable to pass any SqlException and its Message property to this helper class due to unexected exception.
[Code]....
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Nov 6, 2010
my MVC2 delete and only my delete controller is refusing to return any class information. Its really similar to my edit function and the views are all auto-generated so I don't see the problem.
Function Delete(ByVal id As Integer) As ActionResult
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Aug 16, 2010
I have a simple model where a Person has Gifts. I have a view which is a list of Gifts belonging to one Person.
My problem is with the Create action for a new Gift. I want it to default to the PersonID that we are already viewing the list of Gifts for. I tried simply passing the last PersonID (they are all the same)
Html.ActionLink("Create New", "Create", new { id = Model.Last().PersonID }) which works fine if there is already at least one Gift for that person but if this is the first Gift I don't have a value.
My Gift List controller knows the PersonID I want to pass but the view doesn't.
How do I pass this PersonID from my Gift List controller to my Gift Create controller via the Gift List view? Or is there a better way to do this?
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May 30, 2010
I have a filter on my MVC web site. I display some records in a few different controller actions but when moving from one action to another I want to apply those filter values.
How can I persist values from controller to controller?
Should I use Session? TempData?
I am using Structure Map for IOC.
Maybe I could have a class that contains a Property for each Session Value that I use in my application and inject it on the controllers that need session?
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Mar 14, 2011
How do you get the current action / controller name in a controller or class?
i can't show it in my view but that's not what i want.
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Sep 20, 2010
I'm study MVC width the NerdDinner tutorial, I've been writting this application step by step, I not understand why the UpdateModel not working, Help me please!!!, this is my code
[Code]....
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Sep 17, 2010
So I sometimes use app_offline.htm to take an app offline while I upload a new version.However, while I am in the process of uploading larger dll's, I get the yellow error-screen saying the dll could not be loaded.This seems to be out of sync with my expectations of what app_offline.htm does (stops the app entirely), and also provides the users with errors in stead of the nice app_offline.htm I put up.Am I doing something wrong or is this behavior by design?
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Jul 22, 2010
C#: HomeController.vb: works fine HttpPost RsvpForm gets the object filled with user input.
using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.Mvc;using RsvpInC.Models; namespace RsvpInC.Controllers{ public class HomeController : Controller { //
[code]...
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Jan 24, 2011
I have a User entity and a department entity. I have a UserViewModel and DepartmentListModel which has List of departments.
UserViewModel has a property of type DepartmentListModel .
Now on user/create action I need to populate DepartmentListModel by calling DepartmentController's list action. List action returns populated DepartmentListViewModel.
From UserController how do I set DepartmentListModel ?
I tried doing so
[Code]....
But RedirectToAction returns RediretToRouteResult
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Mar 11, 2010
Say I have several Areas that are baed on user roles.Differnet roles have different functionality, but also have some "shared" functionality like say "Payments"Now, I created a PaymentController (and it's views for listing, creating messages) in Shared (not an area) and it works fine.
Would it be possible (and how?) to create a PaymentsController class in one of the Areas, have that inherit the PaymentController Class in Shared?
If I can do this, I can successfully share common functionality across areas, and at the same time extend the derived controller to include some 'area specific' functionality to common shared controllers. (Such as the "REturn to xxxx" text and route of the returnurl, which are a bit more complicated than I just made it sound)
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Jan 19, 2011
How can i transfer control to a controller's method from a controller's method..I am having two Controllers Home and User.. After username and password are verified inHome Controllers method , i want to show the User Controllers index page , so i have to callindex method of Home controller..How can i do it.
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