MVC :: FormCollection Collection Not Being Passed To Controler Action?
Oct 13, 2010What would cause the formsCollection now to be passed to the controler? i have to be missing something.
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What would cause the formsCollection now to be passed to the controler? i have to be missing something.
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<%
{%>
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[code]...
I'm using jQueryGrid and an Action method to populate search results based on some filter criteria, how to pass this form collection values to Action method from Javascript function.
View 1 RepliesWhy 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]...
I am usingĀ
public int deleteProduct(int ProductID, int rowid) {
// Create the Database object, using the default database service. The
// default database service is determined through configuration.
Database db = DatabaseFactory.CreateDatabase();
DataSet productsDataSet = new DataSet();
[Code] ....
The above code am using but throwing below error how to resolve
"Update requires a valid UpdateCommand when passed DataRow collection with modified rows."
I am trying to send json data from view to controller action. But the issue is the data is not populating in the action parameter List<Score>.
View Model:
public class Score
{
public int QuestionId { get; set; }
public int PrevAnswerId { get; set; }
public int CurrAnswerId { get; set; }
public string CurrAnswerName { get; set; }
}
Json Data look like:
[
{QuestionId:1, PrevAnswerId:3, CurrAnswerId:3, CurrAnswerName:'Known to Broker'},
{QuestionId:2, PrevAnswerId:7, CurrAnswerId:7, CurrAnswerName:'Completed'},
{QuestionId:3, PrevAnswerId:10, CurrAnswerId:10, CurrAnswerName:'Report'}
]
On window load, I will construct the Json object using "eval()" function and do some operation in the data before its save. On Save Click, I will call the action through the ajax call.
$.ajax({
url: url,
type: "GET",
dataType: 'json',
data: {score: ScoreJson},
contentType: "application/json; charset=utf-8",
success: function () {
alert("succes");
},
error: function () {
alert("error...");
} });
Action:
public ActionResult SaveScore(List<Score> score)
{
// do something...
}
But here score comming as collection of 3 elements with zero(for interger property)/null(for string property) values. When I checked in the request I found the data in "parama" property like.
"Score%5b0%5d%5bQuestionId%5d=1 &Score%5b0%5d%5bPrevAnswerId%5d=3 &Score%5b0%5d%5bCurrAnswerId%5d=3 &Score%5b0%5d%5bCurrAnswerName%5d=Known+to+broker&
Score%5b1%5d%5bQuestionId%5d=2 &Score%5b1%5d%5bPrevAnswerId%5d=7 &Score%5b1%5d%5bCurrAnswerId%5d=7 &Score%5b1%5d%5bCurrAnswerName%5d=Completed&
Score%5b2%5d%5bQuestionId%5d=3 &Score%5b2%5d%5bPrevAnswerId%5d=10 &Score%5b2%5d%5bCurrAnswerId%5d=10 &Score%5b2%5d%5bCurrAnswerName%5d=Travelers+Report&".
But I am not sure why it is not getting populated in the score list. One full day I spent for this issue but till now I didnt find the solution for this issue.
I am creating one Json array object and trying to pass it in MVC controller action method but i am getting null paramerter; as per my knowledge json only maps .net primitive datatypes.... so it assign null value.
Note: when i have look at request object i found that there are three parameter of created array. But how to get that value as parameter of function?
Is there a way to easily passed around an ID between controller actions on the same controller?I.E. I have an Index action which takes an ID parameter, and when a user creates a new post I would like them to go back to the index page with the same ID.Currently I am just passing it around in my view model, but it seems real cumbersome and I was wondering if there was a better way to do this?
View 1 RepliesI am working on an MVC application and I have an index view where I pass model from controller to index view. The index action has no parameters. Now On view I have a jquery calendar. I want to change all the data on view when a date is selected. do I need to use different action method for this as current action method doesn't have parameter. or I can use same ?
View 3 RepliesI have a list of objects that I want to bind to a gridview. Creating that list and binding it works fine for most of the public properties in that list.
There are some objects contained in each of those objects... for instance there is an Address object.
object.Address.Line1;
object.Address.Line2;
When I bind this to my gridview, I have no issues with stuff like object.DateRegistered, but how can I access things like object.Address.WhatEverProperty? I always get this error:
"A field or property with the name 'xxx.xxxx' was not found on the selected data source."
I need to Loop my FormCollection to get Id values from collection.. I have something like
collection[0]
collection[1]
collection[2]
[code]...
Ive got a scenario where a form is filled in and the action picks it up as a FormCollection. It then carries out validation on it and if it fails sends it back to the form again, however i cant seem to get it to re-populate the form.
If i do something like:
[Code]....
So it just looks for name in whatever is passed over... ideally i dont want to involve a model unless it has all validated fine, but if there is no other way around it can populate a model and do the validation on the model instead...
FYI I am using .NET 4.0 / MVC 3. In my controller, the following is my code:
[HttpPost]
[ValidateInput(false)]
public ViewResult Edit(ContentTemplateView contentTemplateView, FormCollection collection)
Everything works fine when I don't enter HTML, so I know the proper controller is being fired. Also, I have following set properly in my web.config files:
<httpRuntime requestValidationMode="2.0"/>
I only get this problem when I include the FormCollection (which is needed for this particular Controller). So what exactly am I doing wrong? [I have done what was proposed on the following questions, and they work as long as there is no FormCollection. None of them offer a solution with an included FormCollection] Why is ValidateInput(False) not working? Asp.Net MVC Input Validation still firing after being disabled ValidateInput Attribute Doesn't Seem To Work in ASP.NET MVC
My application writes custom attributes to input controls using Helper classes. And also we are loading the UserControl dynamically so we need to use FormCollection to get the posted values. Is there a way that we can access attribute values from FormCollection object.
Example:
<input type="text" name="textBox1" value="harsha" customAttr1 = "MyValue" />
My question is how can i access the value of customAttr1 from the above eg from inside the controller.
I'm overriding the OnActionExecuting method in a base Controller. When a form gets posted - anywhere, I want to check for a certain form element in this method. In any Controller method I can just include the FormCollection as one of the params in its signature, but if I try that with the OnActionExecuting method I get an error saying that there's no suitable method to override. How can I get past this?
View 3 RepliesI want to know which fields were edited in a form in the Edit Action. I have a Log field in a table named "someTable" which I wish to add the change to, along with the Username of the current user. This is a simple implementation:
[Code]....
Can someone tell me where I am going wrong, because the getChangedAttributes function always returns an empty list (assuming because "backupTable" and "form" contain the same values? But shouldn't they be different?
I am just wondering how you'd iterate through elements in a form input array when you get the FormCollection object on postback?
View 3 RepliesI want to know that how i use the collection class for storing some data and save it letter in the data base.
View 4 RepliesI have a strongly typed view for my User edit action. When I press edit all the fields in Users model is filled with values from the DB. If I enter an invalid data for a particular field say email, then the view throws an error, but after that the email field contains data pulled from the DB and not the one which i entered previously.
I will explain to you in steps if my explanation is confusing.
1.Click the edit action.
2.A page displays with all fields in my User model.
3.Email field contains : johnson@company.com (pulled from the database)
4.I try to change the email to "johnson@company1" (This is an invalid email id)
5.The form does a post back and return an error saying that email id is invalid.
6.Email field contains : johnson@company.com (pulled from the database) and not "johnson@company1"
Is there a way to convert the FormCollection to an User model and send it back to the view?
In my ASP.NET MVC app I am rendering out a checkbox using the following code:
<%= Html.CheckBoxFor(i=>i.ReceiveRSVPNotifications) %>
Now I see that this renders both the checkbox input tag and a hidden input tag. The problem that I am having is when I try retrieve the value from the checkbox using the FormCollection:
FormValues["ReceiveRSVPNotifications"]
I get the value "true,false". When looking at the rendered out HTML I can see the following:
<input id="ReceiveRSVPNotifications" name="ReceiveRSVPNotifications" value="true" type="checkbox">
<input name="ReceiveRSVPNotifications" value="false" type="hidden">
So the FormValues collection seems to join these two values since they have the same name.
I am currently developing an application with the new ASP.NET MVC2 framework. Originally I started writing this application in the ASP.NET MVC1 and I'm basically just updating it to MVC2.My problem here is, that I don't really get the concept of the FormCollection object vs. the old Typed object. This is my current code:
[AcceptVerbs(HttpVerbs.Post)]
public ActionResult Create(FormCollection collection)
{[code]....
What are the benefits of switching to FormCollection in MVC2 and more importantly - how is it used properly?
I have a basic form that renders data out to a form like so (from Northwind):
<% using (Html.BeginForm())
{ %>
<h2>Region Selection</h2> [code]....
In addition, I have a controller that is called when the form is posted back:
[AcceptVerbs(HttpVerbs.Post)]
public ActionResult Index(FormCollection collection)
{ [code]...
The problem is that none of the data in the table is being captured in the FormCollection in the Post. The TextBoxes pass data as expected so I know the wireup is working.I read from some other posts that you need a value for the name property - but that did not work. Also, I read that you need to put the data inside a TextBox inside the TD. Instead of grasping at straws, does anyone know the best pattern to pass the data from a Table back into the FormCollection?
btw: I tried to copy/paste formatted test in from Word. No dice. Ugh.
I'm passing a List to an MVC view and generating checkboxes for each object in the list (The checkboxes are named t.Name).I'd like to be able to tell which checkboxes were checked once the form is posted. However, I'd like to avoid using the FormCollection object.
View 1 RepliesI have an ASP.NET app with lots of textboxes all over the page that need updating at various points through program execution.
These textboxes actually belong to a certain class, so for easy updating I thought I could create a Dictionary(Of string, object) and add the control.ID and the control to it and then for updating do something like this:
(in case of updating textbox.text):
[code]....
However the text property of the textbox does not actually get updated. I'm mainly trying to avoid having to manually do textbox.text = somestring for each one of my textboxes every time I have to update them.
I'm implement Comet in Asp.net MVC, I used timer to keep Async request in server, Async request will complete when timer elapsed 1 minute and response to client (to avoid 404 error) and then reconnect to Async Controller. I also wanna execute some Synchronous action during Async request was holding, but the problem is: When an Async action was executed and hold by using timer, the Sync Action wasn't called until Async action (comet long-live request) completed. I did test with firefox 3.6 many times, but the result is the same, so strange, Do you know why ? I have a sub some questions : To implement comet, using timer (response after some minutes elapsed) or thread (response after several time sleeping thread) to hold async request, which is better?
View 1 RepliesI am desiging a master and details page from a search page..user can search for something and I need to display the result in jqgrid if the result has more than 1 row or record.. if the result is just one record then i have to directly send then to details page by skiping grid page... I do have an action method for results page and one more action method for Jqgrid data..i am trying to check the row count for the database result and trying to redirect to details action results..but its not working at all..and showing an empty jqgrid..
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