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  • Ideal Folder Structure of MVC framework

    - by Sarfraz
    Hello guys, I would like to ask what is the ideal folder structure for a MVC framework that should be able to support multiple installations. For example, I install xyz framework and i run two or more sites based on this single installation of xyz framework rather than installing the framework for each site. This is probably done in Codeigniter too but i don't know much about CodeIgniter, so i need your suggestions. I know some of you might even have better idea than what is done by CodeIgniter, so please share.

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  • Custom route does not work in ASP.net MVC 3

    - by user603007
    I am trying to implement my custom route in ASP.net MVC 3 but I get this error: The resource cannot be found. global.asax public static void RegisterRoutes(RouteCollection routes) { routes.IgnoreRoute("{resource}.axd/{*pathInfo}"); routes.MapRoute( "mycontroller", // Route name "{controller}/{name}", // URL with parameters new { controller = "MyController", action = "Search" } // Parameter defaults ); } MyController.cs public class MyController : Controller { public ActionResult Search(string name) { return Content(name); } }

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  • asp.net mvc 2 web application inside a Web site?

    - by Amitabh
    I have a Asp.Net Web Site deployed as a WebSite inside IIS 7.5. http://localhost/WebSite Then I have a second Asp.Net MVC 2 web application which is deployed as Sub Application inside the above WebSite. So the mvc aplication should work on the following Url. http://localhost/WebSite/MvcApp/ The web site works fine but when I browse the mvc Url http://localhost/WebSite/MvcApp/ It gives following error. HTTP Error 403.14 - Forbidden The Web server is configured to not list the contents of this directory.

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  • Kendo Grid: Foreign Key Dropdown does not update grid cell after update

    - by JookyDFW
    I have a Kendo MVC grid that contains a nullable property (short) that is bound as a foreign key and uses a dropdown list as an editor template. I am also using inline editing. When the property value is null, the dropdown list selected value does not get set into the grid cell after the update button is clicked. This works fine if incell editing is used. I am looking for a workaround that will solve my problem. I am including a stripped down version of my code below Everything works if the nullable value is set to a non-null value. GRID @(Html.Kendo().Grid<AssetViewModel>() .Name("DealAssets") .Columns(c => { c.Bound(x => x.Name); c.ForeignKey(x => x.AssetTypeID, (IEnumerable<SelectListItem>)ViewBag.AssetTypeList, "Value", "Text"); c.ForeignKey(x => x.SeniorityTypeID, seniorityTypeList, "Value", "Text").EditorTemplateName("GridNullableForeignKey"); c.ForeignKey(x => x.RateBaseID, rateBaseList, "Value", "Text").EditorTemplateName("GridNullableForeignKey"); ; c.Command(m => { m.Edit(); m.Destroy(); }); }) .ToolBar(toolbar => toolbar.Create().Text("Add New Asset")) .Editable(x => x.Mode(GridEditMode.InLine)) .DataSource(ds => ds .Ajax() .Model(model => model.Id(request => request.ID)) .Read(read => read.Action("ReadAssets", "Deal", new { id = Model.ID })) .Create(create => create.Action("CreateAsset", "Deal", new { currentDealID = Model.ID })) .Update(update => update.Action("UpdateAsset", "Deal")) .Destroy(destroy => destroy.Action("DeleteAsset", "Deal")) ) ) EDITOR TEMPLATE @model short? @{ var controlName = ViewData.TemplateInfo.GetFullHtmlFieldName(""); } @( Html.Kendo().DropDownListFor(m => m) .Name(controlName) .OptionLabel("- Please select -") .BindTo((SelectList)ViewData[ViewData.TemplateInfo.GetFullHtmlFieldName("") + "_Data"]) ) UPDATE ACTION public ActionResult UpdateAsset([DataSourceRequest] DataSourceRequest request, int ID) { var dealAsset = DataContext.DealAssets.SingleOrDefault(o => o.ID == ID); if (dealAsset != null) { if (TryUpdateModel(dealAsset.Asset, new[] {"Name","AssetTypeID","SeniorityTypeID","RateBaseID" })) { DataContext.SaveChanges(); } } return Json(new[] { new AssetViewModel(dealAsset) }.ToDataSourceResult(request, ModelState), JsonRequestBehavior.AllowGet); }

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  • Cant full read querystring data in mvc4 application using a class array as input to action

    - by Anders Lindén
    I have made a mvc4 application and I have a Controller that outputs a png file like this: using System.Drawing; using System.Drawing.Drawing2D; using System.Drawing.Imaging; using System.Drawing.Text; using System.IO; using System.Web.Mvc; using Foobar.Classes; namespace Foobar.Controllers { public class ImageController : Controller { public ActionResult Index(Label[] labels) { var bmp = new Bitmap(400, 300); var pen = new Pen(Color.Black); var font = new Font("arial", 20); var g = Graphics.FromImage(bmp); g.SmoothingMode = SmoothingMode.HighQuality; g.TextRenderingHint = TextRenderingHint.AntiAliasGridFit; if (labels != null) { g.DrawString("" + labels.Length, font, pen.Brush, 20, 20); if (labels.Length > 0) { g.DrawString("" + labels[0].label, font, pen.Brush, 20, 40); } } var stream = new MemoryStream(); bmp.Save(stream, ImageFormat.Png); stream.Position = 0; return File(stream, "image/png"); } } } The Label class looks like this: using System; using System.Collections.Generic; using System.Linq; using System.Web; namespace Foobar.Classes { public class Label { public string label { get; set; } public int fontsize { get; set; } } } When I run my controller having this in the url: http://localhost:57775/image?labels[0][label]=Text+rad+1&labels[0][fontsize]=5&labels[1][fontsize]=5&labels[2][fontsize]=5 I get the correct amount of labels, so the image will show 3. But the instances of Label will not get its data members fill in. I have also tried to do this using plain variables (not properties). If they were filled in, the image would actually show "3" and "Text rad 1". So what do I put in the class "Label" to have the properties right? Should there be some kind of annotation? Where do I read about this?

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  • .NET Usercontrols telerik devexpress infragistics ComponentOne: who's best?

    - by petebob796
    I am considering the purchase of some .NET user controls with interest in both WinForms and asp.net. I have trialed in the past devexpress when I needed a hierarchical data grid for a personal project which I was impressed with. Rather than just jump for them I am interested in peoples experience of different products such as: TelerikDev ExpressInfragistics ComponentOne Any Others? I would like peoples opinions on: - Features Set and Number of Controls - Installation and Upgrade - Ease of use - Documentation - Price - License - Development (Updates to controls their side) Also if anyone has any links to review (hopefully side by side) please post them

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  • integrating tinymce with asp .net MVC 4.0

    - by user1865670
    using ASP .NET MVC 4.0 , VS2012. In one of my page, I tried to integrate a WYSIWYG editor "TinyMCE". To integrate, I followed the following URL : .tugberkugurlu.com My view page is like : @model AboutModels @using FileUploadDemo.Models <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.js"></script> <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"></script> <script src="Scripts/tinymce/jquery.tinymce.js" type="text/javascript"></script> @{ ViewBag.Title = "About"; } @using (Html.BeginForm()) { @Html.ValidationSummary(true) <fieldset> <legend>About</legend> <div class="editor-label"> @Html.LabelFor(model => model.Title) </div> <div class="editor-field"> @Html.EditorFor(model => model.Title) @Html.ValidationMessageFor(model => model.Title) </div> <div class="editor-label"> @Html.LabelFor(model => model.PostedOn) </div> <div class="editor-field"> @Html.EditorFor(model => model.PostedOn) @Html.ValidationMessageFor(model => model.PostedOn) </div> <div class="editor-label"> @Html.LabelFor(model => model.Tags) </div> <div class="editor-field"> @Html.EditorFor(model => model.Tags) @Html.ValidationMessageFor(model => model.Tags) </div> <div class="editor-label"> @Html.LabelFor(model => model.Content) </div> <div class="editor-field"> @Html.EditorFor(model => model.Content) @Html.ValidationMessageFor(model => model.Content) </div> <p> <input type="submit" value="Create" /> </p> <p> Posted Content : @ViewBag.HtmlContent </p> </fieldset> } Here my Model is like : public class AboutModels { public string Title { get; set; } public DateTime PostedOn { get; set; } public string Tags { get; set; } [UIHint("tinymce_jquery_full"), AllowHtml] public string Content { get; set; } } My about page loads with all features. "@html.EditorFor(model=>model.content)" also loads fine. but no "WYSIWYG" pane(i donno what it is called, the pane is used to edit my text written in the textarea(HTml.editorFor())) is loaded. In the runtime, Exception is thrown in jquery.tinymce.js file. Error Message : `Unhandled exception at line 86, column 11 in http://localhost:1706/Home/About 0x800a01b6 - Microsoft JScript runtime error: Object doesn't support this property or method` And give me two options, Continue or Break . If i continue, the page loads with features as i mentioned earlier. If i Break, then it stays in the jquery.tinymce.js file with a yellow text-background. I have no experience with Javascript/jquery. And new in ASP .NET MVC 4.0, actually this is my first try of web application in .net. I updated jquery from nuGet. What could be the possible ways to solve it?

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  • ASP.NET MVC 2 - Saving child entities on form submit

    - by Justin
    Hey, I'm using ASP.NET MVC 2 and am struggling with saving child entities. I have an existing Invoice entity (which I create on a separate form) and then I have a LogHours view that I'd like to use to save InvoiceLog's, which are child entities of Invoice. Here's the view: <%@ Page Title="" Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage<TothSolutions.Data.Invoice>" %> <asp:Content ID="Content1" ContentPlaceHolderID="TitleContent" runat="server"> Log Hours </asp:Content> <asp:Content ID="Content3" ContentPlaceHolderID="HeadContent" runat="server"> <script type="text/javascript"> $(document).ready(function () { $("#InvoiceLogs_0__Description").focus(); }); </script> </asp:Content> <asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server"> <h2>Log Hours</h2> <% using (Html.BeginForm("SaveHours", "Invoices")) {%> <%: Html.ValidationSummary(true) %> <fieldset> <legend>Fields</legend> <table> <tr> <th>Date</th> <th>Description</th> <th>Hours</th> </tr> <% int index = 0; foreach (var log in Model.InvoiceLogs) { %> <tr> <td><%: log.LogDate.ToShortDateString() %></td> <td><%: Html.TextBox("InvoiceLogs[" + index + "].Description")%></td> <td><%: Html.TextBox("InvoiceLogs[" + index + "].Hours")%></td> <td>Hours</td> </tr> <% index++; } %> </table> <p> <%: Html.Hidden("InvoiceID") %> <%: Html.Hidden("CreateDate") %> <input type="submit" value="Save" /> </p> </fieldset> <% } %> <div> <%: Html.ActionLink("Back to List", "Index") %> </div> </asp:Content> And here's the controller code: //GET: /Secure/Invoices/LogHours/ public ActionResult LogHours(int id) { var invoice = DataContext.InvoiceData.Get(id); if (invoice == null) { throw new Exception("Invoice not found with id: " + id); } return View(invoice); } //POST: /Secure/Invoices/SaveHours/ [AcceptVerbs(HttpVerbs.Post)] public ActionResult SaveHours([Bind(Exclude = "InvoiceLogs")]Invoice invoice) { TryUpdateModel(invoice.InvoiceLogs, "InvoiceLogs"); invoice.UpdateDate = DateTime.Now; invoice.DeveloperID = DeveloperID; //attaching existing invoice. DataContext.InvoiceData.Attach(invoice); //save changes. DataContext.SaveChanges(); //redirect to invoice list. return RedirectToAction("Index"); } And the data access code: public static void Attach(Invoice invoice) { var i = new Invoice { InvoiceID = invoice.InvoiceID }; db.Invoices.Attach(i); db.Invoices.ApplyCurrentValues(invoice); } In the SaveHours action, it properly sets the values of the InvoiceLog entities after I call TryUpdateModel but when it does SaveChanges it doesn't update the database with the new values. Also, if you manually update the values of the InvoiceLog entries in the database and then go to this page it doesn't populate the textboxes so it's clearly not binding correctly. Thanks, Justin

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  • How to include the login form on the Home index page in MVC

    - by Bernard Larouche
    Hi guys I really need your help for this. I am relatively new to programming and I need help to something that could be easy for a experienced programmer. I would like to get the login form that we get for free in an MVC application on the left sidebar of my Home index page instead of the usual Account/Login page. I am facing some problems. First I need a product object to be displayed on my Home Index page as well. What I did is that I added a product object to the LogOnModel that they provide in the AccountModels class and I created a UserControl (partial view) copying the content of the LogOn.aspx view. Now my Home index.aspx as well as my partial view inherits the LogOnModel class. I can see the Login form on my Home Index page as well as my product object BUT the login Form is never empty. The last username and password always appear there. I know I must have forgotten something or have done something wrong or the way did it is completely wrong !! Please could you give me some advice Thks <%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl<CoderForTradersSite.Models.LogOnModel>" %> <h4>Login Form</h4> <p> Please enter your username and password. <%= Html.ActionLink("Register", "Register") %> if you don't have an account. </p> <% using (Html.BeginForm()) { %> <%= Html.ValidationSummary(true, "Login was unsuccessful. Please correct the errors and try again.") %> <div> <fieldset> <legend>Account Information</legend> <div class="editor-label"> <%= Html.LabelFor(m => m.UserName) %> </div> <div class="editor-field"> <%= Html.TextBoxFor(m => m.UserName) %> <%= Html.ValidationMessageFor(m => m.UserName) %> </div> <div class="editor-label"> <%= Html.LabelFor(m => m.Password) %> </div> <div class="editor-field"> <%= Html.PasswordFor(m => m.Password) %> <%= Html.ValidationMessageFor(m => m.Password) %> </div> <div class="editor-label"> <%= Html.CheckBoxFor(m => m.RememberMe) %> <%= Html.LabelFor(m => m.RememberMe) %> </div> <p> <input type="submit" value="Log On" /> </p> </fieldset> </div> <% } %>

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  • Dynamic 'twitter style' urls with ASP.NET

    - by Desiny
    I am looking to produce an MVC site which has complete control of the url structure using routing. The specific requirements are: www.mysite.com/ = homepage (home controller) www.mysite.com/common/about = content page (common controller) www.mysite.com/common/contact = content page (common controller) www.mysite.com/john = twitter style user page (dynamic controller) www.mysite.com/sarah = twitter style user page (dynamic controller) www.mysite.com/me = premium style user page (premium controller) www.mysite.com/oldpage.html = 301 redirect to new page www.mysite.com/oldpage.asp?id=3333 = 301 redirect to new page My routes look as follows: routes.IgnoreRoute("{resource}.axd/{*pathInfo}"); routes.MapRoute( "Common", "common/{action}/{id}", new { controller = "common", action = "Index", id = "" } ); routes.MapRoute( "Home", "", new { controller = "Home", action = "Index", id = "" } ); routes.MapRoute( "Dynamic", "{id}", new { controller = "dynamic", action = "Index", id = "" } ); In order to handle the 301 rredirct, I have a database defining the old pages and their new page urls and a stored procdure to handle the lookup. The code (handler) looks like this: public class AspxCatchHandler : IHttpHandler, IRequiresSessionState { #region IHttpHandler Members public bool IsReusable { get { return true; } } public void ProcessRequest(HttpContext context) { if (context.Request.Url.AbsolutePath.Contains("aspx") && !context.Request.Url.AbsolutePath.ToLower().Contains("default.aspx")) { string strurl = context.Request.Url.PathAndQuery.ToString(); string chrAction = ""; string chrDest = ""; try { DataTable dtRedirect = SqlFactory.Execute( ConfigurationManager.ConnectionStrings["emptum"].ConnectionString, "spGetRedirectAction", new SqlParameter[] { new SqlParameter("@chrURL", strurl) }, true); chrAction = dtRedirect.Rows[0]["chrAction"].ToString(); chrDest = dtRedirect.Rows[0]["chrDest"].ToString(); chrDest = context.Request.Url.Host.ToString() + "/" + chrDest; chrDest = "http://" + chrDest; if (string.IsNullOrEmpty(strurl)) context.Response.Redirect("~/"); } catch { chrDest = "/";// context.Request.Url.Host.ToString(); } context.Response.Clear(); context.Response.Status = "301 Moved Permanently"; context.Response.AddHeader("Location", chrDest); context.Response.End(); } else { string originalPath = context.Request.Path; HttpContext.Current.RewritePath("/", false); IHttpHandler httpHandler = new MvcHttpHandler(); httpHandler.ProcessRequest(HttpContext.Current); HttpContext.Current.RewritePath(originalPath, false); } } #endregion } It is very simple to look up a user and in fact the above code does this. My problem is in the dynamic / premium part. I am trying to do the following: 1) in the dynamic controller, lookup the username. 2) if the username is in the user list (database), show the Index ActionResult of the Dynamic controller. 3) if the username is not found, look up the username in the premium list 4) if the username is fund in the premium list (database) then show the Index ActionResult of the Preium controller. 5) If all else fails jump to the 404 page (which will ask the user to sign up) Is this possible? Looking up the user twice is a bad idea for performance? How do I do this without redirecting?

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  • What code in inherit part

    - by FullmetalBoy
    Problem: Having problem to find a source solution (inherit code in view state) to display data from SokningPerformSearchViewModel and its generic list in view state. Questions/request: Need to display data from my viewmodel SokningPerformSearchViewModel and its generic list as a strongly typed (if possible)? This question is a follow-up from my previous question Display a view with many to many relationship // Fullmetalboy namespace BokButik1.ViewModels { public class SokningPerformSearchViewModel { public List<BokSearchResultViewModel> Boksss { get; set; } } } namespace BokButik1.ViewModels { public class BokSearchResultViewModel { public List<Bok> Boks { get; set; } public List<Bok_Forfattare> Bok_Forfattares { get; set; } } } public class SokningController : Controller [AcceptVerbs(HttpVerbs.Post)] public ActionResult PerformSearch(string txtSearch, Kategori kategoriNummer) { Search myTest = new Search(txtSearch, kategoriNummer); SkaparListor mySkaparListor = new SkaparListor(myTest.HamtaBokListaFranSokFunktion(), myIBok_ForfattareRepository.HamtaAllaBok_ForfattareNummer()); var performViewModel = mySkaparListor.RattBokOchForfattarListaTillViewModel(); var SokningIndexViewModel = new SokningPerformSearchViewModel { Boksss = performViewModel }; return View(SokningIndexViewModel); } <%@ Page Title="" Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage<BokButik1.ViewModels.SokningPerformSearchViewModel>" %> <asp:Content ID="Content1" ContentPlaceHolderID="TitleContent" runat="server"> PerformSearch </asp:Content> <asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server"> <h2>PerformSearch</h2> <table> <% foreach (var bok in Model.Boksss) { %> <tr> <td><%: bok.Boks %> av</td> <td rowspan="2"><%: bok.Bok_Forfattares %></td> <td rowspan="2"><div id="Div1"><input type="submit" value="Köp" /></div></td> </tr> <tr> <td></td> </tr> <tr> <td>.. </td> </tr> <% } %> </table> </asp:Content> namespace BokButik1.Models { public class SkaparListor { private List<Bok_Forfattare> _myIBok_ForfattareRepository; private List<Bok> _Bok; private List<BokSearchResultViewModel> _ViewBokSearch; public SkaparListor(List<Bok> pSpecifikBokLista, List<Bok_Forfattare> pBok_ForfattareLista) { _Bok = pSpecifikBokLista; _myIBok_ForfattareRepository = pBok_ForfattareLista; _ViewBokSearch = new List<BokSearchResultViewModel>(); } public List<BokSearchResultViewModel> RattBokOchForfattarListaTillViewModel() { foreach (var a in _Bok) { List<Bok> aaBok = new List<Bok>(); List<Bok_Forfattare> aaBok_Forfattare = new List<Bok_Forfattare>(); BokSearchResultViewModel results = new BokSearchResultViewModel(); aaBok.Add(a); foreach (var b in _myIBok_ForfattareRepository) { if(a.BokID == b.BokID) { aaBok_Forfattare.Add(b); } } results.Boks = aaBok; results.Bok_Forfattares = aaBok_Forfattare; _ViewBokSearch.Add(results); } return _ViewBokSearch; } } // Class }

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  • ASP.net MVC DropLownList db.SaveChanges not saving selection

    - by WMIF
    I have looked through a ton of tutorials and suggestions on how to work with DropDownList in MVC. I was able to get most of it working, but the selected item is not saving into the database. I am using MVC 3 and Razor for the view. My DropDownList is getting created with the correct values and good looking HTML. When I set a breakpoint, I can see the correct selected item ID in the model getting sent to controller. When the view goes back to the index, the DropDownList value is not set. The other values save just fine. Here are the related views. The DropDownList is displaying a list of ColorModel names as text with the ID as the value. public class ItemModel { [Key] public int ItemID { get; set; } public string Name { get; set; } public string Description { get; set; } public virtual ColorModel Color { get; set; } } public class ItemEditViewModel { public int ItemID { get; set; } public string Name { get; set; } public string Description { get; set; } public int ColorID { get; set; } public IEnumerable<SelectListItem> Colors { get; set; } } public class ColorModel { [Key] public int ColorID { get; set; } public string Name { get; set; } public virtual IList<ItemModel> Items { get; set; } } Here are the controller actions. public ActionResult Edit(int id) { ItemModel itemmodel = db.Items.Find(id); ItemEditViewModel itemEditModel; itemEditModel = new ItemEditViewModel(); itemEditModel.ItemID = itemmodel.ItemID; if (itemmodel.Color != null) { itemEditModel.ColorID = itemmodel.Color.ColorID; } itemEditModel.Description = itemmodel.Description; itemEditModel.Name = itemmodel.Name; itemEditModel.Colors = db.Colors .ToList() .Select(x => new SelectListItem { Text = x.Name, Value = x.ColorID.ToString() }); return View(itemEditModel); } [HttpPost] public ActionResult Edit(ItemEditViewModel itemEditModel) { if (ModelState.IsValid) { ItemModel itemmodel; itemmodel = new ItemModel(); itemmodel.ItemID = itemEditModel.ItemID; itemmodel.Color = db.Colors.Find(itemEditModel.ColorID); itemmodel.Description = itemEditModel.Description; itemmodel.Name = itemEditModel.Name; db.Entry(itemmodel).State = EntityState.Modified; db.SaveChanges(); return RedirectToAction("Index"); } return View(itemEditModel); } The view has this for the DropDownList, and the others are just EditorFor(). @Html.DropDownListFor(model => model.ColorID, Model.Colors, "Select a Color") When I set the breakpoint on the db.Color.Find(...) line, I show this in the Locals window for itemmodel.Color: {System.Data.Entity.DynamicProxies.ColorModel_0EB80C07207CA5D88E1A745B3B1293D3142FE2E644A1A5202B90E5D2DAF7C2BB} When I expand that line, I can see the ColorID that I chose from the dropdown box, but it does not save into the database.

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  • Binding Entity Framework Collections Simply Using ASP.NET MVC

    - by jpcmorton
    To begin with: Using Entity Framework v4.0. ASP.NET MVC 2.0. Visual Studio 2010. I have a model that consists simply of an order & order items. What I want to do is simply bind that model without too much hassle where possible (avoiding type converters, etc). Simply the model looks like this: public class Order { public int ID { get; set; } public string OrderNumber { get; set; } public EntityCollection<OrderItem> Items { get; set; } } public class OrderItem { public int ID { get; set; } public string Qty { get; set; } } This is as simple as I want to keep it. This model is coming directly from the code generated by the entity framework generator. I would prefer to use the model directly from the entity framework (I know there are views saying this is a bad thing, but alas). I then have the View looking like this: <% using (Html.BeginForm()) {%> <%: Html.ValidationSummary(true) %> <fieldset> <legend>Fields</legend> <div class="editor-label"> <%: Html.LabelFor(model => model.ID) %> </div> <div class="editor-field"> <%: Html.TextBoxFor(model => model.ID) %> <%: Html.ValidationMessageFor(model => model.ID) %> </div> <div class="editor-label"> <%: Html.LabelFor(model => model.OrderNumber) %> </div> <div class="editor-field"> <%: Html.TextBoxFor(model => model.OrderNumber)%> <%: Html.ValidationMessageFor(model => model.OrderNumber)%> </div> <div id="lineItems"> Where I need to put my line items to be edited, inserted </div> <p> <input type="submit" value="Create" /> </p> </fieldset> <% } %> What I want to do is have a situation where I can use dynamic line items (using javascript). Problems are this: How to go about inserting the initial line item (within the lineItems div). This need to be strongly typed and use the built in validation framework of MVC. Best way to go about inserting line items dynamically so that on the postback there is a complete bind to the model without too much messing around (id = 1,2,3,4, etc). Any help, examples, tips, etc would be appreciated.

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  • MVC: returning multiple results on stream connection to implement HTML5 SSE

    - by eddo
    I am trying to set up a lightweight HTML5 Server-Sent Event implementation on my MVC 4 Web, without using one of the libraries available to implement sockets and similars. The lightweight approach I am trying is: Client side: EventSource (or jquery.eventsource for IE) Server side: long polling with AsynchController (sorry for dropping here the raw test code but just to give an idea) public class HTML5testAsyncController : AsyncController { private static int curIdx = 0; private static BlockingCollection<string> _data = new BlockingCollection<string>(); static HTML5testAsyncController() { addItems(10); } //adds some test messages static void addItems(int howMany) { _data.Add("started"); for (int i = 0; i < howMany; i++) { _data.Add("HTML5 item" + (curIdx++).ToString()); } _data.Add("ended"); } // here comes the async action, 'Simple' public void SimpleAsync() { AsyncManager.OutstandingOperations.Increment(); Task.Factory.StartNew(() => { var result = string.Empty; var sb = new StringBuilder(); string serializedObject = null; //wait up to 40 secs that a message arrives if (_data.TryTake(out result, TimeSpan.FromMilliseconds(40000))) { JavaScriptSerializer ser = new JavaScriptSerializer(); serializedObject = ser.Serialize(new { item = result, message = "MSG content" }); sb.AppendFormat("data: {0}\n\n", serializedObject); } AsyncManager.Parameters["serializedObject"] = serializedObject; AsyncManager.OutstandingOperations.Decrement(); }); } // callback which returns the results on the stream public ActionResult SimpleCompleted(string serializedObject) { ServerSentEventResult sar = new ServerSentEventResult(); sar.Content = () => { return serializedObject; }; return sar; } //pushes the data on the stream in a format conforming HTML5 SSE public class ServerSentEventResult : ActionResult { public ServerSentEventResult() { } public delegate string GetContent(); public GetContent Content { get; set; } public int Version { get; set; } public override void ExecuteResult(ControllerContext context) { if (context == null) { throw new ArgumentNullException("context"); } if (this.Content != null) { HttpResponseBase response = context.HttpContext.Response; // this is the content type required by chrome 6 for server sent events response.ContentType = "text/event-stream"; response.BufferOutput = false; // this is important because chrome fails with a "failed to load resource" error if the server attempts to put the char set after the content type response.Charset = null; string[] newStrings = context.HttpContext.Request.Headers.GetValues("Last-Event-ID"); if (newStrings == null || newStrings[0] != this.Version.ToString()) { string value = this.Content(); response.Write(string.Format("data:{0}\n\n", value)); //response.Write(string.Format("id:{0}\n", this.Version)); } else { response.Write(""); } } } } } The problem is on the server side as there is still a big gap between the expected result and what's actually going on. Expected result: EventSource opens a stream connection to the server, the server keeps it open for a safe time (say, 2 minutes) so that I am protected from thread leaking from dead clients, as new message events are received by the server (and enqueued to a thread safe collection such as BlockingCollection) they are pushed in the open stream to the client: message 1 received at T+0ms, pushed to the client at T+x message 2 received at T+200ms, pushed to the client at T+x+200ms Actual behaviour: EventSource opens a stream connection to the server, the server keeps it open until a message event arrives (thanks to long polling) once a message is received, MVC pushes the message and closes the connection. EventSource has to reopen the connection and this happens after a couple of seconds. message 1 received at T+0ms, pushed to the client at T+x message 2 received at T+200ms, pushed to the client at T+x+3200ms This is not OK as it defeats the purpose of using SSE as the clients start again reconnecting as in normal polling and message delivery gets delayed. Now, the question: is there a native way to keep the connection open after sending the first message and sending further messages on the same connection?

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  • asp.net mvc DataViewModel Problem no insert and edit

    - by mazhar
    using the code DataViewModel with one form for create and edit with partial view , in the code below In the create*I am not able to enter the values to the database*,In the edit Mode I am not able to display the value as well in the textboxes for edit public class OrganizationGroupFormViewModel { // Properties public OrganizationGroup OrganizationGroup { get; private set; } public OrganizationGroupFormViewModel(OrganizationGroup organizationGroup) { OrganizationGroup = organizationGroup; } } public class OrganizationGroupsController : Controller { // // GET: /OrganizationGroups/ OrganizationGroupsRepository OrganizationGroupRepository = new OrganizationGroupsRepository(); OrganizationUsersDataContext _db = new OrganizationUsersDataContext(); public ActionResult Create() { try { OrganizationGroup OrgGroup = new OrganizationGroup() { int_CreatedBy=1, dtm_CreatedDate=DateTime.Now }; return View(new OrganizationGroupFormViewModel(OrgGroup)); } catch { return View(); } } [HttpPost] public ActionResult Create(OrganizationGroup OrgGroup) { if (ModelState.IsValid) { OrgGroup.int_CreatedBy = 1; OrgGroup.dtm_CreatedDate = DateTime.Now; OrganizationGroupRepository.Add(OrgGroup); OrganizationGroupRepository.Save(); return RedirectToAction("Details", new { id = OrganizationGroupRepository.int_OrganizationGroupId }); } return View(new OrganizationGroupFormViewModel(OrgGroup)); } // // GET: /OrganizationGroups/Edit/5 public ActionResult Edit(int id) { try { var OrgGroup = _db.OrganizationGroups.First(m => m.int_OrganizationGroupId == id); if (ModelState.IsValid) { OrgGroup.int_ModifiedBy = 1; OrgGroup.dtm_ModifiedDate = DateTime.Now; } return View(new OrganizationGroupFormViewModel(OrgGroup)); } catch { return View(); } } // // POST: /OrganizationGroups/Edit/5 [HttpPost] public ActionResult Edit(int id, FormCollection collection) { try { var OrgGroup = _db.OrganizationGroups.First(m => m.int_OrganizationGroupId == id); if (ModelState.IsValid) { OrgGroup.int_ModifiedBy = 1; OrgGroup.dtm_ModifiedDate = DateTime.Now; TryUpdateModel(OrgGroup); OrganizationGroupRepository.Save(); } return RedirectToAction("Details", new { id = OrgGroup.int_OrganizationGroupId }); } catch { return View(); } } Create View; <%@ Page Title="" Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage<Egovst.Controllers.OrganizationGroupFormViewModel>" %> Create Organization Group <h2>Create</h2> <%= Html.ValidationSummary(true) %> <div> <% Html.RenderPartial("OrganizationGroup"); %> </div> Organization Group User Control <%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl<Egovst.Controllers.OrganizationGroupFormViewModel>" %> <% using (Html.BeginForm()) {%> <%= Html.ValidationSummary(true) %> <fieldset> <legend>Fields</legend> <div class="editor-label"> Organization Group Name: </div> <div class="editor-field"> <%= Html.TextBoxFor(model => model.OrganizationGroup.vcr_OrganizationGroupName)%> <%= Html.ValidationMessageFor(model => model.OrganizationGroup.vcr_OrganizationGroupName)%> </div> <div class="editor-label"> Organization Group Description: </div> <div class="editor-field"> <%= Html.TextAreaFor(model => model.OrganizationGroup.vcr_OrganizationGroupDesc)%> <%= Html.ValidationMessageFor(model => model.OrganizationGroup.vcr_OrganizationGroupDesc)%> </div> <p> <input type="submit" value="Save" /> </p> </fieldset> <% } %>

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  • How can I hit my database with an AJAX call using javascript?

    - by tmedge
    I am pretty new at this stuff, so bear with me. I am using ASP.NET MVC. I have created an overlay to cover the page when someone clicks a button corresponding to a certain database entry. Because of this, ALL of my code for this functionality is in a .js file contained within my project. What I need to do is pull the info corresponding to my entry from the database itself using an AJAX call, and place that into my textboxes. Then, after the end-user has made the desired changes, I need to update that entry's values to match the input. I've been surfing the web for a while, and have failed to find an example that fits my needs effectively. Here is my code in my javascript file thus far: function editOverlay(picId) { //pull up an overlay $('body').append('<div class="overlay" />'); var $overlayClass = $('.overlay'); $overlayClass.append('<div class="dataModal" />'); var $data = $('.dataModal'); overlaySetup($overlayClass, $data); //set up form $data.append('<h1>Edit Picture</h1><br /><br />'); $data.append('Picture name: &nbsp;'); $data.append('<input class="picName" /> <br /><br /><br />'); $data.append('Relative url: &nbsp;'); $data.append('<input class="picRelURL" /> <br /><br /><br />'); $data.append('Description: &nbsp;'); $data.append('<textarea class="picDescription" /> <br /><br /><br />'); var $nameBox = $('.picName'); var $urlBox = $('.picRelURL'); var $descBox = $('.picDescription'); var pic = null; //this is where I need to pull the actual object from the db //var imgList = for (var temp in imgList) { if (temp.Id == picId) { pic= temp; } } /* $nameBox.attr('value', pic.Name); $urlBox.attr('value', pic.RelativeURL); $descBox.attr('value', pic.Description); */ //close buttons $data.append('<input type="button" value="Save Changes" class="saveButton" />'); $data.append('<input type="button" value="Cancel" class="cancelButton" />'); $('.saveButton').click(function() { /* pic.Name = $nameBox.attr('value'); pic.RelativeURL = $urlBox.attr('value'); pic.Description = $descBox.attr('value'); */ //make a call to my Save() method in my repository CloseOverlay(); }); $('.cancelButton').click(function() { CloseOverlay(); }); } The stuff I have commented out is what I need to accomplish and/or is not available until prior issues are resolved. Any and all advice is appreciated! Remember, I am VERY new to this stuff (two weeks, to be exact) and will probably need highly explicit instructions. BTW: overlaySetup() and CloseOverlay() are functions I have living someplace else. Thanks!

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  • ASP.NET MVC: An Error has occured when trying to create a controller

    - by Grayson Mitchell
    I have got the following error a few times in my MVC applications, and have only managed to get past it by recreating my entire solution from scratch. The error message says make sure there is a paramaterless public constructor, but of course there is one. What else could this error refer to? (It looks like it can't find the controller at all) Code where error occurs public void Page_Load(object sender, System.EventArgs e) { // Change the current path so that the Routing handler can correctly interpret // the request, then restore the original path so that the OutputCache module // can correctly process the response (if caching is enabled). string originalPath = Request.Path; HttpContext.Current.RewritePath(Request.ApplicationPath, false); IHttpHandler httpHandler = new MvcHttpHandler(); **httpHandler.ProcessRequest(HttpContext.Current);** HttpContext.Current.RewritePath(originalPath, false); } Error Message An error occurred when trying to create a controller of type 'Moe.Tactical.Ttas.Web.Controllers.TtasController'. Make sure that the controller has a parameterless public constructor.

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  • ASP.NET MVC - HttpPost to ReturnURL after redirect

    - by JP
    Hello, I am writing an ASP.NET MVC 2.0 application which requires users to log in before placing a bid on an item. I am using an actionfilter to ensure that the user is logged in and, if not, send them to a login page and set the return url. Below is the code i use in my action filter. if (!filterContext.HttpContext.User.Identity.IsAuthenticated) { filterContext.Result = new RedirectResult(String.Concat("~/Account/LogOn","?ReturnUrl=",filterContext.HttpContext.Request.RawUrl)); return; } In my logon controller I validate the users credentials then sign them in and redirect to the return url FormsAuth.SignIn(userName, rememberMe); if (!String.IsNullOrEmpty(returnUrl)) { return Redirect(returnUrl); } My problem is that this will always use a Get (HttpGet) request whereas my original submission was a post (HttpPost) and should always be a post. Can anyone suggest a way of passing this URL including the HttpMethod or any workaround to ensure that the correct HttpMethod is used? Thanks in advance, JP

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  • ASP.NET MVC input is not a valid Base-64 string Error

    - by Cas Sakal
    Hello all, I am trying to post a from in an asp.net mvc page which contains files(user uploads) and a few string fields. However, when I click on the submit I get the following error; The input is not a valid Base-64 string as it contains a non-base 64 character, more than two padding characters, or a non-white space character among the padding characters. does anyone have an idea what is this about? I cannot debug it since it gives the error at the time of the binding of the page. Any help would be appreciated, cas

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