MVC :: How To Return Data Loaded Via AJAX To Controller
Dec 7, 2010
display the first tier of data so the user can select and tweak desired rows. On occasion, they will want to drill into a row to see the children and select/tweak them. After a tweaking session, I wanted to be able to commit.
If I build an aggregate ViewData and prepopulate it, I can display it just fine in the View, and I get the collection back in the postback just fine.
Starting with empty child data, I experimented with jscript to fetch that data and displayed it by adding elements with jquery.
What I can't figure out how to do is to return that data to the controller. The newly added elements aren't in "Show Source" ... I heard elements added via jscript are not posted back. I even tried adding items to a prepopulated list ... only those items originally passed in are returned.
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Apr 4, 2011
I am fairly new to MVC and just trying to achieve something which I think shouldn't be too complicated to achieve. Just want to know what the best approach for that is. I have an Event-RSVP application (NerdDinner kind) where you go to view details of the event and then click on an AJAX link that will RSVP you for the event.
<%
if (Model.HasRSVP(Context.User.Identity.Name))
{
%>
<p>
You are registered for this event!
<%:
Ajax.ActionLink("Click here if you can't make it!", "CancelRegistration", "RSVP", new { id = Model.RSVPs.FirstOrDefault(r => r.AttendeeName.ToLower() == User.Identity.Name.ToLower()).RSVPID }, new AjaxOptions { UpdateTargetId = "QuickRegister"})
%>
</p>
<%
}
else
{
%>
<p>................
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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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Mar 26, 2011
I have a controller with several actions that all return a set of data that's the same among them all. Instead of adding the data to the ViewBag in every single action, is there some pattern or attribute or something I can call or set to add the same data to the viewdata or viewbag for every action, or some other better way to perform the get the same data in every view without calling the method in every action?
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Mar 24, 2011
I have web page that will call the macromedia detection tool kit. But I cannot get the hasReqestedVersion value before the page is loaded. I tried to use RegisterClientScriptBlock or RegisterStartupScript inside of the Page_load function.
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head runat="server">
<script type="text/javascript" src="AC_OETags.js" language="javascript"></script>
<script language="JavaScript" type="text/javascript">.......
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Aug 29, 2010
I came upon this when had problem trying to return a view of a different controller.
In controller1, I have view view1.
In Action1 of controller2, I wanted to do something like:
public ViewResult Action1()
{
return View("/Controller1/View1");
}
but, found out, I couldn't do it. So I searched and found this:[URL]
One guy there responded and said that, for my case, it is possible to do things like below:
return View("~/Views/Controller1/View1.aspx");
this is considered an acceptable MVC practice. Is it OK, good, perfect to do so in the asp.net MVC realm?
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Mar 20, 2011
If I have a controller and I want to return a view based on what my conditional logic goes to, is that possible? I have different types of models that i want to insert into a view DEPENDING on my conditional logic (if statements) Can i do this? and how would I do this
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Nov 23, 2010
Possible Duplicate: How to create file and return it via FileResult in ASP.NET MVC?
ASP.NET MVC2: How to return a file from a controller? I want to do this so the user can download the file from server.
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Jan 11, 2011
i am trying return a double value from controller action. when i alert(result) it works well but when i return a function it did not work. alert undefined value.
//this is action
public ActionResult GetPrice(int id)
{
double price = ProductList.Where(d => d.ID.Equals(id)).Single().Price;
return Json(price, JsonRequestBehavior.AllowGet);
}
when i click $('#btnAdd') i wanna get price
$(document).ready(function () {
$('#btnAdd').click(function () {
//var itemPrice = GetPrice();
alert(GetPrice()); // this return undefşned value........
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Mar 16, 2011
I have a list of items(surveys) displayed on my home page. When I click the edit button for a particular item I have a modal pop up with the items details to edit. When the user clicks Save I submit the form via ajax. Depending on whether ModelState.IsValid == true I want to update the modal with validation information or close the modal and update the list of items with the new information.
This is how I am submitting the form:
[Code]...
My Questions
The only thing I can think to do is return JSON from my controller with a flag indicating the state of the ModelState.IsValid and the corresponding partial that I should show.
1) How would I do this?
2) Is there a better way?
Update
I found this: [URL]
but it seems more likely that I am going about the whole thing incorrectly.
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Jul 9, 2010
I have an application that has an public 'end user' mode and a 'back office' mode. Both 'modes' pretty much share the same controller logic but the user interfaces for these different 'modes' are radically different. Using the out of box default routing that you get when a project is created for the first time I have something like the following:
Controllers
HomeController.cs
Views
BackOffice
Index.aspx
Public
Index.aspx
Shared
BackOfficeSite.Master
PublicSite.Master
In my HomeController.cs I have logic that looks like this:
public ActionResult Index()
{
var devices = DeviceRepository.FindDevicesByCustomer(100);
if(IsBackOffice())
{
return View(@"~/Views/BackOffice/Index.aspx", devices);
}
return View(@"~/Views/Public/Index.aspx", devices);
}
Is this the correct way to be doing this or am I digging myself an anti-pattern hole? I'm using ASP.NET MVC 2.
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Mar 18, 2011
returning a partial view from a controller with different model than my main View. For example:
blic ActionResult Index()
{
//myModel - get Some Types
return View(mymodel);
}
[code]...
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Nov 6, 2010
How does a controller action return an HTML stream as the View? ( in place of the name of the View file )
I want to return a simple "error detected" or "action completed" page to the browser. And I dont want to clutter up my project with yet another view. The return string being "<html><body><h1>Error. Customer xxxx is not found</h1></body></html>"
( thinking about it, better to have a general purpose view in a folder named "Common". Then pass the message text in ViewData. Still curious to know how to return an html stream. )
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Aug 26, 2010
Curious what the best practice is for returning errors to a view from a controller where the error isn't really a validation error, but more like "user not found" or "service timeout" type of errors. (in ASP.NET MVC2 framework)
I've been adding them to the ModelState's model errors, but that doesn't seem appropriate. (although easy to implement and maintain)
Example - A user tries to log in, and their credentials do not match a known user.
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Nov 26, 2010
I am getting the above when I try and open a view in a controller in an Area. Ninject is set up as follows:
public class NinjectControllerFactory : DefaultControllerFactory
{
private IKernel kernel = new StandardKernel(new RLSBCWebSiteServices());
[code]....
Has anyone managed to get Areas working with NinjectControllerFactory, or is there something wrong with my set-up?
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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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Apr 2, 2010
I have a textbox and an OK button inside a modalpopup. How do I get the data from the textbox once the user clicks OK ?? Is it possible to do with vb instead of java?
My ModalPopUp
[Code]....
I get BtnPopUpOk_Click not Defined.
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Feb 4, 2010
I have a simple question - I use update panel with custom server control inside. I call __doPostBack from javascript and RaisePostBackEvent on the server fires (I implement IPostBackEventHandler).This is client to server call. Could I return data back to the client (after this partial postback)? What is the best way to achieve this?
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Jun 9, 2010
function createSuccess(context) {
$get("result").innerHTML = context.get_data();
}
<% using (Ajax.BeginForm(new AjaxOptions {OnSuccess="createSuccess"}))
{%>
What does context holds in the createsuccess method? data return by controller? How do we return json data in the createsucess if so
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Feb 10, 2011
Is it possible to validate a form that has been loaded dynamically by Ajax? I have two forms that I load on a page with another form and niether of the Ajax forms can be validated.
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Feb 11, 2010
Have a GridView in an UpdatePanel, all works fine. Click the Submit() button which updates the database on postback, then the GridView is bound in code and I register an alert:
ScriptManager.RegisterStartupScript(this.UpdatePanel1, typeof(string), "dopopup", "alert('Operation successful!');", true);
Calling UpdatePanel1.Update() causes the popup to appear. All fine but what I am noticing is that the alert occurs just before the page has fully updated and is causing a few minor layout issues that are resolved when the alert button is closed (by clicking OK). Is there a way to generate an alert after a full UpdatePanel refresh, so something like:
ScriptManager.RegisterFullyLoadedScript(this.UpdatePanel1, typeof(string), "dopopup", "alert('Operation successful!');", true);
I tried a simple wait() in the code like this:
ScriptManager.RegisterStartupScript(this.UpdatePanel1, typeof(string), "dopopup", "wait(100);alert('Operation successful!');", true);
But this didn't work.
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Jul 14, 2010
I have 2 similar partial views.
View #1:
[Code]....
View #2:
[Code]....
In my Index.aspx view I have 2 Ajax.ActionLinks that load these partial views into a div. The problem is, in the 2nd case the script is not loaded. Here are screenshots from IE8 developer tools (F12):
Screen #1:
Screen #2:
The sample MVC application is here: [URL]. The actual application I'm having this problem with uses jQuery.globalEval() to execute these scripts. Currently I have to insert <div style="display:none"> </div> before the script tag if it happens to be the first one in order to make it work.
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Dec 19, 2010
I just create a js file and write all my codes into it after i added this file to UserControl and after i get this UserControl's html i use $("#DivID").html(UserControlHTML);
Its working now.
Hi everyone;
Im using Ajax and Webservice to load UserControls. Its ok i can easily get the html code of UserControl but there is a problem.
For example UserControl's html code is something like that.
<h3>Header</h3>
<div id="content">
<p>lorem ipsum dolor sit amet...</p>[code]....
When i get this html code and insert it to an div's innerHTML.html looking as it should. But javascript codes which written on usercontrol not working.It should give me alert but its not.
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Jan 7, 2010
I use updateprogress to show "loading ... " text on label control.
When updatpanel loaded succecfully I want to show "loaded." text in the updateprogress label control again.
How can I do it ?
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Jul 27, 2010
I am using Modalpopup from Ajaxtoolkit,I want to show popup control when the page is loaded.
I don't want to click on LinkButton or Button,actually i want show it in "pageload".
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