MVC :: Store Model In Separate Class Library- Pass Model Objects?
May 19, 2010
I'm building an MVC 2 RTM app, and I want to be able to share my model across applications. I'd *like* to be able to implement it like:ASP.NET MVC2 app (holds Views and Controllers)Class library to hold Model(s)WCF app to handle the data transactions with the models via different data stores across apps I had the MVC app working fine, but I wanted to abstract the data stuff and be able to work with the model across apps through the WCF site, so I created a class library project and moved all of the Models classes into that and set-up a WCF app, then added project references to the MVC and WCF apps that point at the class library. The idea was I can create services that take and return objects from the model via method calls across apps. It appears that everything's wired up correctly in the MVC project, so I'm passing the objects stored in the Models class library between controllers and views and everythig is compiling just fine, but for some reason the data is not being passed back from the views to the controller on POST -- all of the properties in the classes are null or empty.
When I debug the app, I can see that the values are stored in the model data dictionary but not the model object itself. What am I doing wrong? Am I on the wrong path, or missing something obvious (to some)?
View 2 Replies
Similar Messages:
Dec 28, 2010
I am trying to make a post that should use the Default Model Binder functionality in ASP.NET MVC 2 but unfortunately I can't get through. When I click on the checkout button I populate a form dinamically using jQuery code and then submit this form to the server. This is the form that get submitted
<form action="/x/Order/Checkout" id="cartForm" method="post">
<input name="__RequestVerificationToken" type="hidden" value="UDjN9RdWheKyWK5Q71MvXAbbDNel6buJd5Pamp/jx39InuyYIQVptcEubIA2W8DMUzWwnZjSGkLspkmDPbsIxy8EVuLvfCSZJJnl/NrooreouptwM/PaBEz2v6ZjO3I26IKRGZPqLxGGfITYqlf8Ow==">
<input id="CustomerID" name="CustomerID" type="hidden" value="1">
<input id="FirmID" name="FirmID" type="hidden" value="2">
<input type="hidden" name="CartItems[0].ServiceTypeID" value="1">
<input type="hidden" name="CartItems[0].Quantity" value="1">
<input type="hidden" name="CartItems[1].ServiceTypeID" value="2">
<input type="hidden" name="CartItems[1].Quantity" value="1">
</form>
This is the jQuery code that handle the submit event for the form
$("#cartForm").submit(function (event) {
event.preventDefault(); var form = $("#cartForm");
var panel = form.parent(); panel.parent().block();
$.ajax({ type: "post", dataType: "html",
url: '<%: Url.Content("~/Order/Checkout") %>',
async: false, data: form.serialize(),
success: function (response, status, xml) { panel.parent().unblock(); },
error: function (response) { panel.parent().unblock(); } }); });
This is the controller action that should be get called
[HttpPost]
[ValidateAntiForgeryToken]
public virtual ActionResult Checkout( CartModel cart ) {
} And finally this is the CartModel class involved
public class CartModel : BaseModel{
public int CustomerID { get; set; }
public int FirmID { get; set; }
public List<CartItemModel> CartItems { get; set; }
public CartModel() { CartItems = new List<CartItemModel>();
} } public class CartItemModel : BaseModel
{ public int ServiceTypeID { get; set; }
public int Quantity { get; set; } }
But the default Model Binder does not bind the web form data to a CartModel class. Using Fiddler I have been able to see that the data sent to the server is correct as you can see from the following snapshot.
View 1 Replies
Jun 22, 2010
Has anybody figured out a way to separate the dependency of the view/controller from the model. In other words, model is independent of the view/controller in asp.net MVC but has anybody also taken out dependency of the view/controller from model as well?
View 4 Replies
Oct 22, 2010
I am asked to save and output a tournament bracket, like NCAA or US Open, two parties play and the winner move on to next round. To display the whole bracket, I need to find a way to maintain the hierarchy, say I have the following class:
[Code]....
This is good for a single contest inside the tournament, but how do I change the class or use other classes to support hierarchy? Also if possible can someone show me the best way to model this in SQL server tables?
View 2 Replies
Sep 14, 2010
I have been trying to design a form, which uses a view model that contains an object array. I want to set up this form so that when the submit button is clicked, all the members of the array are updated. Here is my code:
The class definition of the array element:
[Code]....
The problem is that when I clicked the submit button, none of the luSubject objects in the array Subjects got updated. But if I set up some initial values for the members of the luSubject objects, for instance, set the Name field to be "Maths" in the constructor of luSubject class, then it got displayed on the text box when the form page was loaded. This suggests that this form could display the data in the array, but cannot update it.
View 8 Replies
Mar 24, 2011
Using ASP.NET MVC 2, I have a model for a view. The view has a dropdownlist of roles that is populated by the model and there is a list below that of checkboxes with a number of privileges. I want to show only specific privileges depending on the dropdownlist selected roleID and have it update the privileges everytime the dropdownlist changes. I know how to do this in web forms ASP.net with absolutely no problem but I cannot seem to figure out where to start in ASP.NET MVC. Can someone please advise me what I need to do or towards a tutorial that will show me what to do? I am a novice in MVC.
View 2 Replies
Feb 7, 2011
I have following doimain objects:
public class ComponentType
{
public int ComponentTypeID { get; set; }
public string Component_Type { get; set; }
public string ComponentDesc { get; set; }
}
[code]...
View 2 Replies
Sep 1, 2010
Is it possible, inside a Custom Model Binder, to fire "something" that "says" the value is invalid so it gets handled by validation part?
Basically, I am getting an exception when the value for the property is invalid.
View 1 Replies
Jan 10, 2011
I made a few changes to the DB in SQL server management studio then right clicked on the .edmx doc to get it to update. That seemed to work fine but when i compiled the app everything that referenced the EF seems to be broken.The Error list now contains the below error for all classes that used it.
The type or namespace name '' could not be found (are you missing a using directive or an assembly reference?)
View 4 Replies
Mar 11, 2010
I have an issue of static variable in an asp.net application. Let's say I have a server with 8 CPUs running windows 2008 R2 hosting an asp.net webbsite, nothing fancy here, no funny configuration.
Is the following statement true? at any single time, there's one and only one process is running and accepting requests, even in the recycling stage. The reason I am asking is: I have a static field in my class, and I want to make that's the only static instance in the website. I've heard in some circumstances, IIS is recylcing your application, and it will start a new process, but the old process is still working, thus I will have 2 static instances in memory, which defeat the purpose of static field.
One step further, let's assume there might be 2 instances in memory, can I assume there are at most 2 instances at any single time? And can I assume once the second instance is up, the first instance will NEVER accept new requests?
Another question: Recently I have a problem with an applicationdomain concept. Looks like if an application domain causes a memory leak, unload the domain will not release the memory (Umanaged leak). So to what extent Application Domain is isolated?
View 1 Replies
Feb 26, 2011
Suppose i have a Product and Category Model, In add new product page i want to list all categories in a listbox. For this purpose i require to have Product and Category model available to Add New Product Page View.
View 4 Replies
Feb 6, 2011
I been working on a simple site today and when I found myself surprised about this. I got a object model that gone have like a lot of emails to it so I thought Ill do a string array to keep them, then I paused and tried to figure how do I save that to a database and how do I work with this? I always found myself working with collections of objects instead. So I'm kinda embaries to say this but how do I work with this? can I save a array to database
[Code]....
View 3 Replies
Aug 2, 2010
when I use Html.HiddenFor( model => model.OwnerId ) to create a hidden field, the value assigned to that field is zero. When I use <input type="hidden" value="<%: Model.OwnerId %>" /> to add the hidden field to the form, the value is assigned correctly.
Why would Html.HiddenFor( model => model.OwnerId ) not get the correct value from the Model object? Am I supposed to load model state somehow separate from returning the model object from the action method? Here is the view:
[Code]....
The Create action method is relatively straight forward.
public ActionResult Create( ... )
{
ViewStockItem item = new ViewStockItem();
item.ActionCode = ActionCode.Add;
if (item.OwnerId == 0)
item.OwnerId = 7;
BookOwner owner = db.BookOwners.Single(c => c.OwnerId == item.OwnerId);
item.OwnerName = owner.OwnerName;
return View(item);
}
View 4 Replies
Dec 15, 2010
I've been used to decorating data model classes with data annotation attributes, but the purist in me baulks slightly at including purely presentational attributes such as display format here. I am, however, quite happy to keep validation centric attributes here. One good reason I have to continue keeping all annotations etc. in the data model is that my view model aggregates data model classes, e.g.
my ViewModelBase.DetailItem<TEntity> property in the view model is just a reference to an entity class in my data model. If I wanted to move presentational annotations to the view model, I would have to quite radically revise my design to one where I duplicate data model properties in my view model and use an object mapping tool to populate view model objects based on data model objects.
[code]....
View 2 Replies
May 4, 2010
Say I got a domain model as follows: (and my repository expect an instance of this object)
[Code]....
And a view model (which my views are based on)
[Code]....
At the moment I got it like this and have my controller action manually create a new Person object from the PersonModel object before passing it on to the repository, which does not feel right.
So I tried to have PersonModel inherit from Person and pass that to the repository (also tried casting the PersonModel to a Person object first), but that don't work out.
What's the right way to have PersonModel automatically cast to Person? I want to keep this logic as my current structure allow me to keep things really loosely coupled, with the repository layer not having a clue how it's being used.
View 1 Replies
Feb 24, 2011
My problem with the following is how do I send the ModelStateErrors to the action Employee, when I go through the catch part in DeleteEmployee
[Code].....
With return View("Employee", model); I a still not able to send the ID and Name as parameter.
View 5 Replies
Jun 4, 2010
I'm trying to implement paging in my app, so i need to know what page the user wants to click on, as well as pass the model (for some fields)I'm able to pass the desired page, just not the model (for the search criteria)here is my view:
[Code]....
Heres my Controller Action
[Code]....
My ViewModel SearchResults has a string property "Search". When i do it this way searchModel == null in the NextPage Action.
View 2 Replies
Feb 6, 2010
I am experimenting with using xml as a database for small CMS, like gallery or staff profiles etc
how i bind my xml document to a modelclass so that i can then use that class for strongly typed views:
here is my model class:
[XmlRoot("employee")]
public class EmployeesModel
{
[Required]
[DisplayName("Name: ")]
[Code]....
View 1 Replies
Jun 17, 2010
i have a page which is bound to a viewmodel and i also have a partial view on this page which requires a parameter from the viewmodel.how can i pass this parameter to the partial view?
View 3 Replies
May 9, 2010
Generally speaking we create a custom view for each page. So for an edit view of a car the model might be:
Car CarToEdit{ get; set;}
List<SelectListItem> CarManufacturers{ get; set;}
This has the advantage of giving a strongly typed view. It doesn't decouple the data layer well, but that is a separate issue. I'd then need to do something like (very approx syntax) :
<%= Html.DropDownList("ManufacturerId", Model.CarManufacturers)%>
Because of this, I can't use an EditorFor, and just pass in the model, as it would not render out the dropdownlists. So I think why not annotate the manufacturer field with UIHInt... great that works. ... but how do I pass in the data (both the manufacturerId, and the List<SelectListItem> to the hinted field?One solution is to have the UIHint control do a RenderAction. So the main view would include a line like:
[Code]....
Which would in turn go and render a view :
[Code]....
This works, but seems a little long winded. Can anyone suggest better ways of achieving this?Is anyone actually using UIHint?Also it would be good to be able to cache the output from the partial view (the dropdownlist) which is called from the RenderAction method... but output caches are is basically ignored on a render action (unless I've missed the point here).
View 2 Replies
Apr 17, 2010
How to pass model bind collection from one controller to another?
I have this model class,
Public Class Sports
Private _SportsID As Integer
Private _SportsName As String
[Code]....
View 3 Replies
Sep 16, 2010
I am using ASP.NET MVC 1. I want to pass an int value to from an action to view. I can use 2 ways.
Use ViewData dictionary.
Define a class to contain the int value.
Other these two, Is there a way to pass the int value to view so that I can get the int value using just Model like
<label><%= Model %></label>
View 2 Replies
Feb 12, 2010
I have some questions in my mind after went through the video tutorials.
Is Model a entity class type? encapulated attribute and methods (business logic). because i see in videos , people use LINQ to generate models which can only use LINQ to modify/insert/delete data.
Is it a good practice to generate Model using LINQ?
View 3 Replies
Mar 31, 2010
I'm reading a bit of Pro ASP.NET MVC Framework and following a few tutorials written in the book. In the very first tutorial, creating a MVC site for dinner (PartyInvites), I encoutered this problem. While I try to reference some properties from Model class, the compilation error occured. Eg. the following code failed.
[Code]....
and the error message
Compiler Error Message:
CS1061: 'object' does not contain a definition for 'Name' and no extension method 'Name' accepting a first argument of type 'object' could be found (are you missing a using directive or an assembly reference?) I imported the Model folder into the controller too. I dunno what I'm missing here. Sorry, if it sounds a bit umm hard to understand cuz I just started picking up MVC this morning. Looking for any input.
View 5 Replies
Apr 22, 2010
I have need to provide a URL to a controller and action in one of my model classes. Is this possible to do with out providing the entire webaddress as well?
View 10 Replies
