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• Adding childs to list of parents with jquery /mvc2

  - by John Landheer

  Hi, I have a table of products on my page, each product has zero or more colors, the colors are shown as a list beneath the product. After the colors I have a button to add a color. The button will do an ajax call with the parent product id to a controller which will return a JSON object with color information. My problem is where to store the product id in the DOM, should I put it in a hidden field and use jquery in the click event of the "add color" to get to it? What is the best way to do this? TIA, John EDIT: The page is initially rendered on the server so I don't want to use jquery to add the id's to the page.

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• jquery FullCalendar

  - by Andrei C

  hi guys, I'm trying to use jquery Full Calendar from http://arshaw.com/fullcalendar I searched the docs alot but I could not find how I can retrieve the current month a user is on at a certain moment. On render it is set as the current month in the title, but I cant find a way to use that info. I want to sent the month to my ajax call together with other params (start, end, _) but I dont know how please help me out with this. inside the fullcalendar definition, how to retrieve the month currently displayed. Thank you!

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• Issue with JSON and jQuery

  - by Jason N. Gaylord

  I'm calling a web service and returning the following data in JSON format: ["OrderNumber":"12345","CustomerId":"555"] In my web service success method, I'm trying to parse both: $.ajax({ type: "POST", url: "MyService.asmx/ServiceName", data: "{}", contentType: "application/json; charset=utf-8", dataType: "json", success: function(msg) { var data = msg.d; var rtn = ""; $.each(data, function(list) { rtn = rtn + this.OrderNumber + ", " + this.CustomerId + "<br/>"; } rtn = rtn + "<br/>" + data; $("#test").html(rtn); } }); but I'm getting a bunch of "undefined, undefined" rows followed by the correct JSON string. Any idea why? I've tried using the eval() method but that didn't help as I got some error message talking about ']' being expected.

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• Webservice won't accept JSON requests

  - by V-Man

  Hi, The main issue is that I cannot run a webservice that accepts requests in JSON format. I keep getting a 500 Server error stating that the "request format is invalid." My ASP.NET AJAX extensions are installed. My server is running Plesk Control Panel 8.6 which is undoubtedly causing these problems. The default handler for this specified extension is shown in the web.config like so: For my applications webservice to handle JSON it needs to have this reference: <add name="ScriptHandlerFactory" verb="*" path="*.asmx" preCondition="integratedMode" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/> Plesk is not allowing the request to be handled properly. I need to know the correct http directive(s) to put into the web.config to properly handle JSON webservices. I tried posting to the Plesk forum two days ago but no response yet. Any insight would be great =)

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• UITextField with the lookup

  - by leon

  Hello, I would like to achive the same functinoanlity in the UUTextField control as Google search web site (which uses Ajax for this): as user start typing, list of suggestion searches is shown. Then more letteres you type, suggestion list changes. So imaging I have array of words: Apple Abc Aman As user types A, all thress suggesions are shown, if user type one more letter p, then Apple is suggested. How would I do something like this? Mail type of applicatins do it, when receipent name is typed in the To: edit control I guess I can use UITableView with the search, is it correct approach?

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• jQuery: detecting reaching bottom of scroll doesn't work, only detects the top! :(

  - by Jack Webb-Heller

  Hi folks! So basically my problem is a seemingly simple one. You can see it in action at http://furnace.howcode.com (please note that data is returned via Ajax, so if nothing happens give it a few moments!). What's MEANT to happen, is in the second column when you reach the bottom of scrolling, the next 5 results are returned. But what actually happens is it only returns the 5 results when you hit the TOP of the scroll area. Try it: scroll down, nothing happens. Scroll back up to the top, the results are returned. What's going wrong? Here's my code I'm using: $('#col2').scroll(function(){ if ($('#col2').scrollTop() == $('#col2').height() - $('#col2').height()){ loadMore(); } }); loadMore(); is the function that gets the data and appends it. So what's going wrong here? Thanks for your help! Jack

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• jQuery toggle fucntion not working as expected

  - by Bunny Rabbit

  <!DOCTYPE html> <html lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.3/jquery.min.js" type="text/javascript"></script> <script type="text/javascript"> $(function(){ $('div#menu div') .bind('mouseover',function(event){ popHelp(this); }) .bind('mouseout',function(event){ clearHelp(); }) .toggle( function(event){$('#menu div a').not(this).css('opacity',1);$(event.target).css('opacity',0.4)}, function(event){$(event.target).css('opacity',1)} ) $('div.item').not('#mainPage') .hide() $('#customerManagement').click(function(event){ $('.item').hide('slow'); $('#customerManagementCon').toggle('slow'); return false; }) $('#userManagement').click(function(){ $('.item').hide('slow'); $('#userManagementCon').toggle('slow'); return false; }) $('#storageManagement').click(function(){ $('.item').hide('slow'); $('#storageManagementCon').toggle('slow'); return false; }) $('#searchManagement').click(function(){ $('.item').hide('slow'); $('#searchManagementCon').toggle('slow'); return false; }) $('#signOff').click(function(){ $('.item').hide('slow'); $('#signOffCon').toggle('slow'); return false; }) } ); function popHelp(ref){ var text; if(ref.id=="customerManagement") text="click here for customer management"; else if(ref.id=="userManagement") text="click here for user management"; else if(ref.id=="storageManagement") text="click here for storage management"; else if(ref.id=="searchManagement") text="search management"; else if(ref.id=="signOff") text="click here to sign off"; $('#helpConsole').append('<div class="help">'+text+'<div>'); } function clearHelp(){ $('#helpConsole > div').remove(); } </script> <style type="text/css" > #helpConsole { background-color:Aqua; margin-left:500px; width:300px; height:100px; outline-width:medium; } </style> </head> <body> <div id="menu"> <table border="2"> <thead> <tr> <th colspan="5">Welcome $Employee Name</th> </tr> </thead> <tbody> <tr> <td><div id="customerManagement" class="menuItem"><a>Customer Management</a></div></td> <td><div id="userManagement" class="menuItem"><a>User Management</a></div></td> <td><div id="storageManagement" class="menuItem"><a>Storage Management</a></div></td> <td><div id="searchManagement" class="menuItem"><a>Search Management</a></div></td> <td><div id="signOff" class="menuItem"><a>Sign Off</a></div></td> </tr> </tbody> </table> </div> <div id="helpConsole"><h3>help</h3></div> <div id="mainPage" class="item"><h1>Storage Service</h1></div> <div id="customerManagementCon" class="item"> <h3>Customer Management</h3> </div> <div id="userManagementCon" class="item"> <h3>User Management</h3> </div> <div id="storageManagementCon" class="item"> <h3>Storage Management</h3> </div> <div id="searchManagementCon" class="item"> <h3>Search Mangement</h3> </div> <div id="signOffCon" class="item"> <h3>Sign Off</h3> </div> <div id="menuItemCon" class="item">menuItem</div> </body> The toggle function in this code is not working as expected though it shows the #menu items when clicked it doesn't hide them always .

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• jQuery Tabs - Following External Links

  - by Ricky

  I have jQuery Tabs setup, but am trying to get a Tab to follow an external link. I have tried to use the code from jQuery, but the URL still loads via Ajax instead of redirecting the browser to the url: http://jqueryui.com/demos/tabs/#...follow_a_tab.27s_URL_instead_of_loading_its_content_via_ajax Current code: $(function() { $('#rotate > ul').tabs({ select: function(event, ui) { var url = $.data(ui.tab, 'load.tabs'); if( url ) { location.href = url; return false; } return true; } }); });

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• Binding Dropdownlist using jquery

  - by Geetha

  Hi All, I am try to bind the dropdowmlist using jquery. But is showing some error. Code: $.ajax({ type: "POST", contentType: "application/json; charset=utf-8", data: "{product: '" + product + "'}", url: "Search.aspx/FetchCategory", dataType: "json", success: function(data) { $.each(data.d, function() { $("#ddlCategory").append($("<option></option>").val(this['ID']).html(this['Category'])); }); } }); values in the data: [{"Category":"All","ID":"%"},"Category":"Action,"ID":"4"},"Category":"Race,"ID":"5"},"Category":"Sports,"ID":"6"}] Error: $("#ddlCategory").append($("").val(this['ID']).html(this['Category'])); Microsoft JScript runtime error: Object doesn't support this property or method Geetha

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• How do you handle browser cache with login/logout?

  - by Julien

  To improve performances, I'd like to add a fairly long Cache-Control (up to 30 minutes) to each page since they do not change often. However, each page also displays the name of the user logged in (like this website). The problem is when the user logs in or logs out: the user name must change. How can I change the user name after each login/logout action while keeping a long Cache-Control? Here are the solutions I can think of: Ajax request (not cached) to retrieve and display the user name. If I have 2 requests (/user?registered and /user?new), they could be cached as well. But I am afraid this extra request would nullify my caching performance-wise Add a unique URL variable (?time=) to make the URL different, and cancel the cache. However, I would have to add this variable to all links on my webpage, not very convenient code-wise This problems becomes greater if I actually have more content that is not the same for registered users and new users.

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• Dynamically loading CSS and JavaScript using Prototype

  - by Salman A

  I have a classic ASP application that I've been constantly trying to modularize. Currently, almost all pages are divided in to two pages: an outer page that contains the layout, header, sidebar, footer an inner page that contains ASP code The outer pages use dreamweaver templates so updating layout and replicating changes is easy. The inner pages are managed by me. Now here is the problem: I had to add a lightbox to one page, I chose Lightbox 2 which requires Prototype. I ended up adding Prototype on every page, assuming that sooner or later I'll upgrade all pages, forms, ajax requests and other javascript to use Prototype. I've now added two other plugins -- Modalbox and Protofade; each with a pair of .JS and .CSS files. Since I'll be using these three plugins on specific set of pages I am wondering if I can load the required CSS and JS files dynamically. I do not want to access the document head and add include files there, I'll have to do this from inside a DIV where all ASP code is supposed to go.

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• Invalid Viewstate

  - by murak

  I always got this error guys on my site.Anybody got a solution. Stacktrace at System.Web.UI.Page.DecryptStringWithIV(String s, IVType ivType) at System.Web.UI.Page.DecryptString(String s) at System.Web.Handlers.ScriptResourceHandler.DecryptParameter(NameValueCollection queryString) at System.Web.Handlers.ScriptResourceHandler.ProcessRequestInternal(HttpResponse response, NameValueCollection queryString, VirtualFileReader fileReader) at System.Web.Handlers.ScriptResourceHandler.ProcessRequest(HttpContext context) at System.Web.Handlers.ScriptResourceHandler.System.Web.IHttpHandler.ProcessRequest(HttpContext context) at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) Query String d=J_c3w3Q59U-PnoRlWBPOJMVgHe_9Ile9wANEXiRFLzG8mequestManager._initialize('ctl00%24ScriptManager1' I noticed that there are strings that got appended on the last part of ScriptResource.axd which are not part of the querystring(equestManager._initialize('ctl00%24ScriptManager1').I don't know how this string ends up here.I am using MS ajax, webforms and IIS7 on a shared hosting plan.

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• Global variable life in Javascript - destroyed on a reload?

  - by Paul Nathan

  (I am learning Javascript) Problem: A page I am working on has 2 views, a data entry view with a textbox and a data rendering view. There is a a href src="currentpage#" link that switches between the 2 views. In order to transmit data from view to view, the javascript parses it from the current HTML and pushes it into the correct form for the other view. This is ugly and I want to refactor it out, ideally into some sort of global where it can be neatly rendered down into the view on command (I'm refactoring the code base to a point where I can AJAX it from a server). However, I am not certain about scoping rules and variable life in JS.

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• What are some good design patterns for CRUD?

  - by Extrakun

  I am working with a number of data entities which can be created, read, updated and deleted, and I find myself writing more or less the same code for them. For example, I need to sometimes output data as JSON, and sometimes in a table format. I am finding myself writing 2 different types of view to export the data to. Also, the creation of those entities within DB usually differs just by the SQL statements and the input parameters. I am thinking of creating a strategy pattern to represent different 'contexts'. For example, the read() method of an AJAX context will be to return the data as JSON. However, I wonder if others have deal with this problem beforehand and will like to know what design patterns are usually use for CRUD operations.

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• FCKeditor in jQuery ui dialog not working

  - by zilverdistel

  Hi folks, I'm having serious trouble getting this to work in IE7/8. In FF, everything works as expected. When the user clicks on a certain link, a modal dialog popup is shown. In this dialog, there is a form, which contains one textarea, that is replaced with a FCK instance. The form is loaded from the server using ajax on the clientside and php on the serverside. There's one strange way to get the FCK editor shown, and that is by resizing the dialog. Library versions: jquery: 1.3.2 jquery ui: 1.7.3 FCKeditor: 2.6.1 build 19297 Any help would be strongly appreciated, I'm on a deadline here :-(

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• Call server side method from JSON

  - by Zerotoinfinite

  How to call a method on a server side from JSON. Below is the code I am using SERVER SIDE: [WebMethod] private void GetCustomer( string NoOfRecords) { string connString = "Data Source=Something;Initial Catalog=AdventureWorks;Trusted_Connection=True;"; SqlConnection sCon = new SqlConnection(connString); SqlDataAdapter da = new SqlDataAdapter("SELECT * FROM Sales.Customer WHERE CustomerID < '" + NoOfRecords+ "' ", sCon); DataSet ds = new DataSet(); da.Fill(ds); GvDetails.DataSource = ds.Tables[0]; GvDetails.DataBind(); } On Client Side: var txtID = document.getElementById('txtValue'); $.ajax({ type: "POST", url: "Default.aspx/GetCustomer", data: "{Seconds:'" + txtID +"'}", contentType: "application/json; charset=utf-8", dataType: "json", success: function(response) { alert(response); } }); Now I want that on button click, I would call the function at the client side [JSON], which pass the textbox value to the function. Please help

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• J2ME HTTPS Connection Problem: Certificate was issued by an unrecognized entity

  - by Mustafa

  I am developing a little J2ME application that will read our grades from our university's server. With Desktop Applications, It is fine, I can do it but in J2ME, it always gives me this error, even I use well-known services like HTTPS Google, I still get the same error. urlConn = (HttpsConnection) Connector.open("https://stars.bilkent.edu.tr/srs/ajax/login.php"); urlConn.setRequestMethod(HttpsConnection.POST); urlConn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded"); o = urlConn.openOutputStream(); // Sending my POST requests to server input = urlConn.openDataInputStream(); In the last line I always get the error I mentioned above. What should I do about it?

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• QGrid display default "loading" message when updating a table / on custom update

  - by JVXR

  I have a case where I need to update a jqgrid based on some search criteria which the user selects. I can get the data to update , but I would want the loading message to show while the new data is being fetched. Can someone please let me know how to get that working ? Current code follows var ob_gridContents = $.ajax( { url : '/DisplayObAnalysisResults.action?getCustomAnalysisResults', data : "portfolioCategory="+ $('#portfolioCategory').val() +"&subPortfolioCategory="+ $('#subPortfolioCategory').val() + "&subportfolio=" + $('#subportfolio').val(), async : false }).responseText; var ob_Grid = jQuery('#OBGrid')[0]; var ob_GridJsonContents = eval('(' + ob_gridContents + ')'); $('#ob_Grid').trigger("reloadGrid"); ob_Grid.addJSONData(ob_GridJsonContents); ob_Grid = null; ob_GridJsonContents = null; }

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• need help with installing shared libraries on linux

  - by naiquevin

  Hi, I am new to linux and trying to get the Ajax Push engine server to work on Ubuntu 9.04. I installed the server from source it fails the check that it does by using its own javascript framework. The problem is that it fails to load the modules and the output that i get in the terminal when i start it is. [Module] Failed to load ../modules/lib/libmod_spidermonkey.so [Invalid library] (libmysac.so.0.0: cannot open shared object file: No such file or directory) i thought i had to install mysac lib as a shared lib, so after some searching i copied the libmysac.so to /usr/local/lib/ and upon running ldconfig there it created the symlink. But still it gived the same error. Now I copied the libmod_spidermonkey.so in the shared lib dir. But this time ldconfig did not create any symlinks. I am really confused and looking for some pointers . Please help

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• After dynamically changing a form submit function causes old function to get called once then new fu

  - by cnobile

  I am setting the submit function on a form with jQuery then later in the process I reset the function to something else. What happens is the original function gets called again then the new function when only the new function should have been called. I am sending the requests with AJAX. The first one validated the values on the server then asks if you want to continue. Clicking the submit again should only call the changed function but for some reason both get called simultaneously with a single click. What is happening here? Could jQuery be delaying the the setting of the 2nd function on the form submit?

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• Unobtrusive Client Validation without accepting model

  - by user1010609

  I have simple form like this which accepts only two values string action and editText.Is there a way to enable Unobtrusive Client Validation on this without Data Annotations? Or do I have to accept model and use Data Annotations? I just need it to make sure editText is atleast 5 chars long. @using (Ajax.BeginForm("Action", "Controller", null, new AjaxOptions { OnFailure = "error", UpdateTargetId = "Pcedit" + @Model.ID})) { <textarea rows="3" cols="2" name="editText" style="width:100%;"></textarea> <br /> <input type="submit" name="action" value="Save"/> <input type="submit" name="action" value="Cancel"/> }

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• Haskell as REST server

  - by Dev er dev

  I would like to try Haskell on a smallish project which should be well suited to it. I would like to use it as a backend to a small ajax application. Haskell backend should be able to do authentication (basic, form, whatever, ...), keep track of user session (not much data there except for username) and to dispatch request to handlers based on uri and request type. It should also be able to serialize response to both xml and json format, depending on request parameter. I suppose the handlers are ideally suited for Haskell, since the service is basically stateless, but I don't know where to start for the rest of the story. Searching hackage didn't give me much hints.

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• Easiest way to pass a javascript array or its values to a servlet and convert to a HashMap

  - by Ankur

  I have a Javascript array. I want to pass it's data to a servlet using the ajax() method of jQuery. What is the easiest way to do this. The index values i.e. the i in array[i] are not in order, they are numbers that have meaning themselves, hence I cannot simply loop through and create a GET queryString, or so I believe. Maybe I should be converting the JavaScript array to a JSON Object and sending that to the server ?? I am stumped on this one.

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• How to load the model ????

  - by rajesh

  How can i load model i have tried several times but do not get the ans my code is <?php class NotesController extends AppController { var $name='Notes'; var $helpers = array('Html','Form','Ajax','Javascript'); var $uses = array('note'); var $components = array('ModelLoader'); function index(){ $this->ModelLoader->setController($this); $result = $this->params['url']['obj']; //print_r($result); $ee=$this->ModelLoader->load('note'); $pass = $this->note->search($result);

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• Clear Session in ASP.Net

  - by Jignesh

  I want to clear the session on Page unload. Here is a condition : If user goes from Page A to Page B of the same site session must not get cleared. If user close the browser window or Tab(close the site),session must gets cleared. I have tried using AJAX PageMethod to call server-side procedure to remove session from client side script.But the procedure is not getting hit,I have checked it using Breakpoint. server side procedure is in master.cs file I will appreciate your help. Here is code in site.master <body onunload="HandleClose();"> <script type="text/javascript"> function HandleClose() { PageMethods.AbandonSessions(); } and here is a code in master.cs : [System.Web.Services.WebMethod] public static void AbandonSessions() { HttpContext.Current.Session.Abandon(); }

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