How I can bind in my ActionResult IEnumerable property in Model.
Objects:
public class Project
{
public int ProjectID {get;set;}
public IEnumerable<Category> Categories {get;set;}
}
[Code]....
i have a text box that i bind to my model data and it works fine. however when i submit my form in some cases i want to change the value that in the text box so some value i pull from the db. when i do this, it only works if the form was not submitted. is there something i am not aware of when it comes to rebinding a text box from the model in cases when the form was submited, instead of reloading the same value that the user entered into the text box?
View 1 RepliesI'm trying to update values I have stored in an IEnumerable using UpdateModel, but it isn't reflecting the changes when I step over it in Debug.I also tried upating it using a foreach loop and updating the values in each object T within the IEnumerable<T>. The values are changed at the object level, but it seems that the value of the object in the IEnumerable isn't being changed.I was looking at IEnumerable<T> and didn't see a way to update it... I'm thinking that I might have to assign the updates to some other data structure, then convert it to an IEnumerable or something before I try to save my repository
View 6 Repliesquestion is same as in thread, but also i would like to see example of this.
View 1 RepliesI 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.
've created a Search partial view and it works, except for my view model. What i mean is, the partial view sends a string to my ActionResult Method, but only a string, that is not related to the view model that the partial view is built in. If i tell my ActionResult method to receive the view model in which the partial view is built in, it always tells me that i have null values. Here's my code This is my partial view:
[Code]....
Now here is my Model in my MoviesSearch view model:
[Code]....
Now the actual MoviesSearchViewModel
[Code]....
Inside my Search controller i have this
[Code]....
And then i have this:
I am passing a model to a view. Some of the data in the model is just being displayed on the screen.Ex.
[Code]....
The data from the Text boxes are given back to the model when posted to the action method. The DisplayText data is not. It comes back null. How do I bind the data I'm displaying from the model back to the model when I POST back to my action?
I am trying here to find a simple solution to bind an array of elements to a model using the MVC model binder. If I use the @Html.Checkbox helper now, it will generate me something like this :
[Code]....
I should be ok as it manage the checked in state and not checked in. The problem here is when I try to bind it back to the model (something really simple)
[Code]....
In the controller I try to bind it with the UpdateModel()
[Code]....
When I debug, the chk variable in the model is still null. I tried with IList<string>, bool[], IList<bool> nothing seems to make it. Is there any other way to deal with this else than form.GetValues("chk")[0].Contains("true") ?
Is there a way to retrieve the client side ID for a model property similar to how the helpers like LabelFor etc generate the ID? For example, I have a model with a DateOfBirth property. I want to hook up that field to a jQuery DatePicker. Normally, I would hook up the date picker like this:
[Code]....
This works fine but hard codes the DateOfBirth property name. Ideally, I would like to use this:
[Code]....
Is this already available out of the box somewhere? I just created an extension method on the HtmlHelper class that does exactly this, but I wondered if there was already something built-in so I don't have to reinvent and test the wheel.
So I have code as below
public ActionResult Create(AccountClassificationCreateViewModel ACCVM)
{
if (ACCVM.newMtn0130 == null)//Why ACCVM.newMtn0130 is null after [code]...
I wonder why the ACCVM.newMtn0130 become null after RedirectToAction? I already assign with "_ACCVM.newMtn0130 = newMtn0130".
ACCVM._Error didn't become null after RedirectToAction.
I found little bug feature in MVC 2.
So, if we have in route defined parameter with same name as property at model and then we call it from strongly typed HTML helper (for example Html.TexBoxFor(x => x.PropertyName)), we get value from route parameter instead of property of model.
For example.
We have defined follow route:
[Code]....
Very simple model:
[Code]....
Next action in controller:
[Code]....
And very simple view:
[Code]....
Result you can see at follow picture:
I think what this dirty example described the essence of the problem. Let me know if I'm wrong.
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)
View 14 RepliesHow can I show display property of Model on View.
public class Model
{
[Required]
[DataType(DataType.Text)]
[DisplayName("First Name")]
[code]...
I have a viewmodel with a property of a model class type. I set some properties in the model class to be able to show it to the user but then when I make a post, the model gets validated. How to overcome this? I don't want to enforce the DataAnnotations contraint in this case....
public class TheViewModel
{
TheModel TheModel { get; set;}
}
[code]...
this is the first controler which is calling my applciation I am getting all my studentinfo for updating studnetcan i call this et in updateresult Action result?
public ActionResult getresult(StduentInfo et)
{
return PartialView("Student", et);
public ActionResult updateresult(Stdentinfo et)
[code]...
For a large fillin form I use the asp.net FormView for the magic databinding to my model. In this model I've a property called Rides (shown below), which exposes a list, which I obviously not want to be replaced entirely. So I made it readonly.
However, this way I can't use the databinding features anymore. Is there a common solution for this problem?
[code]....
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]....
Action:
[Code]....
View:
[Code]....
But error raised "object does not have property Name". Why?
I would like to exclude one of model's property from the Html.EditorFor. I tried [HiddenInput(DisplayValue=false)] but it renders the property as an hidden input. This could potentially be a security problem. How can we completely exclude a field from Html.EditorFor?
View 5 RepliesI got 3 radion-buttons on the view called:
- Taxi
- Train
- Bus
The model passed has a property called "Transport" of type String. In the action, if I set the property as 'Train', then the view should set the radio-button 'Train' checked. ie.
Action:
model.Transport = "Train";
How do I do that in the view to make the radio-button Train checked?
public class BandProfileModel
{
public BandModel Band { get; set; }
public IEnumerable<Relationship> Requests { get; set; }
}
and the following form:
<% using (Html.BeginForm()) { %>
<%: Html.EditorFor(m => m.Band) %>
<input type="submit" value="Save Band" />
<% } %>
which posts to the following action:
public ActionResult EditPost(BandProfileModel m, string band)
{
// stuff is done here, but m is null?
return View(m);
}
Basically, I only have one property on my model that is used in the form. The other property in BandProfleModel is just used in the UI for other data. I'm trying to update just the Band property, but for each post, the argument "m" is always null (specifically, the .Band property is null). It's posting just fine to the action, so it isn't a problem with my route. Just the data is null.
The ID and name attributes of the fields are BAND_whatever and Band.whatever (whatever being a property of Band), so it seems like it would work. What am I doing wrong? How can I use just one property as part of a form, post back, and have values populated via the model binder for my BandProfileModel property in the action?
I want to assign a stylesheet-class to a <div> element. The cssclass I want to use depends on the property 'Level' which is defined in de ViewModel.
I want to have something like this:
<div class="dashboardlevel" + <%= Model.Level %>>
But this doen't work.
So, I've got an contact form in my MVC 2 application.
I'd like to programatically email all properties of my "ContactModel".
Here is what I'd like to do in psuedo-ish code:
[Code]....
In case it matters...ContactModel sets up the DisplayName attributes like this:
[DisplayName("First Name")]
public string FirstName {get; set ;}
I'd like to keep this nice and DRY by not repeating the DisplayName names.
Specifically, I'd like to enumerate over each property in my ContactModel, get its DisplayName, and get its submitted value.
I think I might have stumbled onto a bug in ASP.NET MVC 3 RC. When I setup my MVC2 project in a new MVC3 project, copy paste classes, code, change name spaces, etc, etc, I ran into an issue in the following, simplified for explanation purpose, scenario:
Model:
public class WineDetails
{
[SkipRequestValidation]
[Required(ErrorMessage = "Beschrijving verplicht")]
public string Description { get; set; }
}
ViewModel:
public class ViewModelCreateWine
{
public MasterData MasterData { get; set; }
public WineDetails WineDetails { get; set; }
}
ActionMethod:
[AcceptVerbs(HttpVerbs.Post)]
public ActionResult CreateWine(ViewModelCreateWine viewModelCreateWine)
{
GetMasterDataRegions(viewModelCreateWine);
if (Request.Params.ToString().IndexOf("Save") > 0)
{
if (TryValidateModel(viewModelCreateWine.WineDetails))
{
m_wineService.CreateWine(viewModelCreateWine.WineDetails);
return RedirectToAction("index", "Admin");
}
}
return View(viewModelCreateWine);
}
The ActionMethod "CreateWine" needs to call the "CreateWine" method in the WineService so that in the end a new Wine is added to the Database. So far it looks ok. As shown in the above code the [SkipRequestValidation] is set on the "Description" property of the WineDetails model so that the user can add Rich Text to the description and HTML elements are allowed during the Request validation. This works perfectly fine until the Params collection of the Request is accessed in the code to check if the Save button is clicked. When this line of code is trying to execute the following exception is thrown:
Exception Details: System.Web.HttpRequestValidationException: A potentially dangerous Request.Form value was detected from the client (ViewModelCreateWine.WineDetails.Description="<p>HTML Content with...").
The same exception is thrown when I put the [ValidateInput(false)] attribute on the action method. When I comment out the "if" statement and its content there is no issue and the model validation works just fine and skips the Request Validation on the Description property as expected.
In MVC2 the above code worked fine with the [ValidateInput(false)] attribute on the action method.As I said I'm not sure if this is a bug, it very well might be my own stupidity, but I thought it would be worth to mention here. So any feedback is more than welcome.
I am trying to populate a drop down list from my controller for a create action. I can display the dropdown as I want but when I cannot get the value to be stored in the database. My models:
[Code]....
Controller: [Code]....
View: [Code]....
This above snippet will show me the message "The value '50117dae-a7d7-4371-926f-7b1f7aaec133' is invalid."
if I change the line to @Html.DropDownListFor(ct => ct.CollectionType.CollectionTypeId, new SelectList(ViewBag.CollectionTypes as System.Collections.IEnumerable, "CollectionTypeId", "Title"))
@Html.ValidationMessageFor(model => model.CollectionType)
the page will not do anything - I believe this could be because the controller is trying to add a new CollectionType.
