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  • Html.DropDownListFor not behaving as expected ASP.net MVC

    - by rybl
    Hello, I am new to ASP.net MVC and I am having trouble getting dropdown lists to work correctly. I have a strongly typed view that is attempting to use a Html.DropDownListFor as follows: <%=Html.DropDownListFor(Function(model) model.Arrdep, Model.ArrdepOptions)%> I am populating the list with a property in my model as follows: Public ReadOnly Property ArrdepOptions() As List(Of SelectListItem) Get Dim list As New List(Of SelectListItem) Dim arriveListItem As New SelectListItem() Dim departListItem As New SelectListItem() arriveListItem.Text = "Arrive At" arriveListItem.Value = ArriveDepart.Arrive departListItem.Text = "Depart At" departListItem.Value = ArriveDepart.Depart Select Case Me.Arrdep Case ArriveDepart.Arrive : arriveListItem.Selected = True Case Else : departListItem.Selected = True End Select list.Add(departListItem) list.Add(arriveListItem) Return list End Get End Property The Select Case works find and it sets the right SelectListItem as Selected, but when my view renders the dropdown list no matter what is marked as selected the generated HTML does not have anything selected. Am I obviously doing something wrong or missing something, but I can't for the life of me figure out what.

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  • Authorizing sections of a view in MVC

    - by Duk
    I was wondering if it's possible to authorize parts of a view inside the view. For example, I understand how to authorize the entire controller in this method <HandleError()> _ Public Class HomeController Inherits System.Web.Mvc.Controller Function Index() Return View() End Function <Authorize(Roles:="Administrators")> _ Function AdministratorSecrets() Return View() End Function End Class But what Id like to do is have it so if the admin is logged in, they can see additional links in my navigation. Something along the lines of <ul id="menu"> <li><%= Html.ActionLink("Home", "Index", "Home")%></li> <li><%= Html.ActionLink("About", "About", "Home")%></li> <Authorize(Roles:="Administrators")> _ <li><%= Html.ActionLink("Admin", "Admin", "Home")%></li> </ul> Obviously that won't work, but it gives an idea of what I'm trying to accomplish. Any ideas?

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  • VS 2010 MVC Formatting

    - by Brian
    Hello, MVC is formatting my code horribly, and I was wondering if you can turn it off? I feel the answer is no, but I was hoping VS 2010 had built in a setting... Here's what its formatting as: <% if (org.UserKey.HasValue) { %> <%= org.Reference(i => i.UserReference).Email%> <% } else { %> <%= org.UserEmail%> <% } %> I want the beginning brackets on the same line as the if and the else... Thanks.

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  • ASP.NET MVC 2.0 Client-Side Validation HOWTO

    - by AlexWalker
    Where can I find some good information on the new client-side validation functionality included in ASP.NET MVC v2? I'd like to find information about using the client-side validation JavaScript without using DataAnnotations, and I'd like to find out how custom validations are handled. For example, if I want to validate two fields together, how would I utilize the provided JavaScript? Or if I wanted to write validation code on the server-side that queried a database, how could I use the provided JavaScript to implement a similar validation? I don't see any books on MVC2 yet, and the blog entries I've found are not detailed enough.

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  • [C# asp.net mvc or javascript] user-friendly xml sensitization library that html encoding invalid pa

    - by Fox
    I would like to allow my users to submit a subset of xhtml that will be displayed to other users (likely I'll build a schema for it) but I want the server to handle validation more gracefully then hard rejecting invalid submissions.... Instead I'd like the server to Html Encode invalid/harmful parts of the submissions.... (sanitize javascript and css etc.) Is there any library (maybe asp.net mvc 2 has such functionality?) or do I have to develop my own? or maybe there is a javascript library that html encodes invalid parts and I can just have the server only accept that subset?

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  • Rendering PDFs from a database inside MVC views?

    - by Mohammad Sepahvand
    I was wondering if it's possible to do this without using 3rd party compnents in MVC 3. (I am open to free components though.) There are a couple of links out there but they seem to be mostly concerned with reporting and other code samples that do claim to do this sort of thing don't seem to compile. I'm not having any trouble saving and retrieving the PDFs to and from my database, but when I return the PDF as a File or a FileStreamResult the user is prompted with a download. A more desirable approach would be to actually render the PDFs inside the browser. I've had a look at iTextSHarp, it does the job to an extent, but it's not a complete solution. For example it will display the PDF inside the view if and only if the client has Adobe Reader installed, otherwise it prompts for a download. So technically, I'm mostly looking for a PDF viewer. Any ideas?

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  • How can I implement my own version of a MVC framework in ASP.NET?

    - by ace
    Hi - I would like to know how I can go about implementing my own version of a MVC framework in ASP.NET? I know there already is Microsoft provided ASP.NET MVC framework, but I want to learn MVC and thought the best way would be to implement my own flavor of a MVC framework on top of ASP.NET. Any thoughts / guidance ? Also, can anyone point me to a page where I can learn more about how microsoft implemented ASP.NET MVC ? I'm more interested in learning about the under the hood plumbing that goes on to implement the framework on top of asp.net, do they use HttpHandlers / HttpModules ? Thanks.

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  • Can't Use Path in ASP MVC Action

    - by user1477388
    I am trying to use Path() but it has a blue line under it and says, "local variable (path) cannot be referred to until it is declared." How can I use Path()? Imports System.Globalization Imports System.IO Public Class MessageController Inherits System.Web.Mvc.Controller <EmployeeAuthorize()> <HttpPost()> Function SendReply(ByVal id As Integer, ByVal message As String, ByVal files As IEnumerable(Of HttpPostedFileBase)) As JsonResult ' upload files For Each i In files If (i.ContentLength > 0) Then Dim fileName = path.GetFileName(i.FileName) Dim path = path.Combine(Server.MapPath("~/App_Data/uploads"), fileName) i.SaveAs(path) End If Next End Function End Class

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  • Retreive value from model into view ib MVC 3

    - by prerna
    public class HomeController : Controller { public ActionResult Index() { return View(); } /* public string Browse() { return "Hello from Browse"; public string Details(int id) { string message = "Store.Details, ID = " + id; return message; // return "Hello from Details"; }*/ public ActionResult Details(int id) { var album = new Album { Title = "Album " + id }; return View(album); } } I am new to MVC 3 ,My View is Details.aspx without Razor engine. <html> <head runat="server"> <title>Details</title> </head> <body> <div> </div> </body> </html> Can anyone help

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  • Proxy object references in MVC code

    - by krystan honour
    Hi there, I am just figuring out best practice with MVC now I have a project where we have chosen to use it in anger. My question is. If creating a list view which is bound to an IEnumerable is this bad practise? Would it be better to seperate the code generated by the WCF Service reference into a datastructure which essentially holds the same data but abstracts further from the service, meaning that the UI is totally unaware of the service implementation beneath. or do people just bind to the proxy object types and have done with it ? My personal feeling is to create an abstraction but this seems to violate the DRY principle.

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  • Page inheritance in mixed asp.net Forms and MVC application

    - by Rising Star
    I'm working on a web application. One of my co-workers has written some asp.net forms pages. The page classes all inherit from BasePageClass, which of course inherits from the Page class. I wish to add some MVC controllers that I've been told need to use the same logic implemented in the BasePageClass. Ordinarily, I would want to inherit the functions in the BasePageClass in the controller classes, but this breaks the inheritance heirarchy. What is the best practice for solving this problem?

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  • routing paramenter returns null when only supplying first paramenter in MVC

    - by Ray ForRespect
    My issue is that I customer Map Route in MVC which takes three parameters. When I supply all three or just two, the parameters are passed from the URL to my controller. However, when I only supply the first parameter, it is not passed and returns null. Not sure what causes this behavior. Route: routes.MapRoute( name: "Details", // Route name url: "{controller}/{action}/{param1}/{param2}/{param3}", // URL with parameters defaults: new { controller = "Details", action = "Index", param1 = UrlParameter.Optional, param2 = UrlParameter.Optional, param3 = UrlParameter.Optional } // Parameter defaults ); Controller: public ActionResult Map(string param1, string param2, string param3) { StoreMap makeMap = new StoreMap(); var storemap = makeMap.makeStoreMap(param1, param2, param3); var model = storemap; return View(model); } string param1 returns null when I navigate to: /StoreMap/Map/PARAM1NAME but it doesn't return null when I navigate to: /StoreMap/Map/PARAM1NAME/PARAM2NAME

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  • MVC Display Template for Generic Type

    - by Kyle
    I am trying to use the model ListModel as a generic list model. I would like to enter on the page @Html.DisplayForModel() However the MVC is not correctly finding the templated file "ListModel.cshtml". It must work differently for generic models. What should I name the templated file in order for it to correctly be located? public class ListModel<T> { public IEnumerable<T> Models {get;set;} public string NextPage {get;set;} } I would expect it to look for "Shared/DisplayTemplates/ListModel.ascx" but it doesn't. Does anyone know?

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  • ASP.Net MVC2 (RTM) breaks response filtering - "Filtering is not allowed"

    - by womp
    I've just done a test run of upgrading a project to ASP.Net MVC 2 (RTM) in anticipation of the full official .Net 4.0 release coming later this month. Our application is using a minimizer for our CSS and javascript. To do so, it is making use of the HttpResponse.Filter property to set a custom filter. With the upgrade, the setter for this property is throwing an HttpException saying "Filtering is not allowed." Looking that the HttpResponse.Filter property in reflector shows this: set { if (!this.UsingHttpWriter) { throw new HttpException(SR.GetString("Filtering_not_allowed")); } ... private bool UsingHttpWriter { get { return ((this._httpWriter != null) && (this._writer == this._httpWriter)); } } Clearly something has changed in the way the HttpResponse is writing to the output stream in MVC2. Does anyone know what the change is, or at least a workaround for this? EDIT: This seems pretty radical. Some further investigation shows that ASP.Net MVC 2 RTM is using a System.Web.Mvc.ViewPage.SwitchWriter as the Output property of an HttpResponse, whereas MVC 1 was using a plain old HttpWriter. That explains why the exception is being thrown. But that doesn't explain why they've chosen to completely break this functionality. This thread seems to indicate that this is just temporary... but this makes me pretty nervous... this is the RTM after all. Any further comments appreciated on this.

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  • ASP.NET-MVC Page: image logo is not displaying while sending the email

    - by Rita
    Hi I have a page that sends an email on ASP.NET MVC Page. All the Text is displaying but the image is not displaying. Any workaround. Appreciate your responses. Here is my code: MailMessage mailMsg = new MailMessage(); mailMsg.IsBodyHtml = true; mailMsg.From = new MailAddress(ConfigurationManager.AppSettings["Email.Sender"]); mailMsg.To.Add(new MailAddress(email)); mailMsg.Subject = "Test mail to display the Logo in the email"; mailMsg.Body = " Test mail to display the Logo in the email; mailMsg.Body += Environment.NewLine + Environment.NewLine + "<html><body><img src=cid:companylogo/><br></body></html>"; //Insert Logo string logoPath = Server.MapPath(Links.Content.images.Amgen_MedInfo_Logo_jpg); // logo is placed in images folder LinkedResource logo = new LinkedResource(logoPath); logo.ContentId = "companylogo"; // done HTML formatting in the next line to display logo AlternateView aView = AlternateView.CreateAlternateViewFromString(mailMsg.Body, new System.Net.Mime.ContentType("text/html")); aView.LinkedResources.Add(logo); mailMsg.AlternateViews.Add(aView); mailMsg.IsBodyHtml = true; SmtpClient smtpClient = new SmtpClient(ConfigurationManager.AppSettings["SMTP"]); smtpClient.Send(mailMsg);

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  • Asp.net override Membership settings at runtime (asp.net mvc)

    - by minal
    I had an application that hooked onto 1 single database. The app now needs to hook into multiple databases. What we want to do is, using the same application/domain/hostname/virtual dir give the user the option on the login screen to select the "App/Database" they want to connect into. Each database has the App tables/data/procs/etc as well as the aspnet membership/roles stuff. When the user enters the username/password and selects (select list) the application, I want to validate the user against the selected applications database. Presently the database connection string for membership services is saved in the web.config. Is there any way I can override this at login time? Also, I need the "remember me" function to work smoothly as well. How does this work when the user comes back to the app in 5 hours... This process should be able to identify the user and application and log in appropriately.

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  • ASP.NET MVC Routing - Redirect to aspx?

    - by bmoeskau
    This seems like it should be easy, but for some reason I'm having no luck. I'm migrating an existing WebForms app to MVC, so I need to keep the root of the site pointing to my existing aspx pages for now and only apply routing to named routes. Here's what I have: public static void RegisterRoutes(RouteCollection routes) { routes.IgnoreRoute("{resource}.axd/{*pathInfo}"); routes.IgnoreRoute("{resource}.aspx/{*pathInfo}"); RouteTable.Routes.Add( "Root", new Route("", new DefaultRouteHandler()) ); routes.MapRoute( "Default", // Route name "{controller}/{action}/{id}", // URL with parameters new { controller = "Calendar2", action = "Index", id = "" } // Parameter defaults ); } So aspx pages should be ignored, and the default root url should be handled by this handler: public class DefaultRouteHandler : IRouteHandler { public IHttpHandler GetHttpHandler(RequestContext requestContext) { return System.Web.Compilation.BuildManager.CreateInstanceFromVirtualPath( "~/Dashboard/default.aspx", typeof(Page)) as IHttpHandler; } } This seems to work OK, but the resulting YPOD gives me this: Multiple controls with the same ID '__Page' were found. Trace requires that controls have unique IDs. which seems to imply that the page is somehow getting rendered twice. If I simply type in the url to my dashboard page directly it works fine (no routing, no error). I have no idea why the handler code would be doing anything differently. Bottom line -- I'd like to simply redirect the root url path to an aspx of my choosing -- can anyone shed some light?

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  • Site Security/Access management for asp.net mvc application

    - by minal
    I am trying to find a good pattern to use for user access validation. Basically on a webforms application I had a framework which used user roles to define access, ie, users were assigned into roles, and "pages" were granted access to a page. I had a table in the database with all the pages listed in it. Pages could have child pages that got their access inherited from the parent. When defining access, I assigned the roles access to the pages. Users in the role then had access to the pages. It is fairly simple to manage as well. The way I implemented this was on a base class that every page inherited. On pageload/init I would check the page url and validate access and act appropriately. However I am now working on a MVC application and need to implement something similar, however I can't find a good way to make my previous solution work. Purely because I don't have static pages as url paths. Also I am not sure how best to approach this as I now have controllers rather then aspx pages. I have looked at the MVCSitemapprovider, but that does not work off a database, it needs a sitemap file. I need control of changing user persmissions on the fly. Any thoughts/suggestions/pointers would be greatly appreciated.

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  • [Asp.Net MVC] Encoding a character

    - by Trimack
    Hi, I am experiencing some weird encoding behaviour in my ASP.NET MVC project. In my Site.Master there is <div class="logo"> <a href="<%=Url.Action("Index", "Win7")%>"><%= Html.Encode("Windows 7 Tutoriál") %></a></div> which translates to the resulting page as <div class="logo"> <a href="/">Windows 7 TutoriA?l</a></div> However, in the Index.aspx there is <h1> Windows 7 Tutoriál</h1> which translates correctly on the same resulting page. I do have <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> as my first line in <head>. Locally, both files are saved in UTF-8 encoding. Any ideas why is this happening and how to fix it? Thanks in advance.

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  • Optimizing C# code in MVC controller

    - by cc0
    I am making a number of distinct controllers, one relating to each stored procedure in a database. These are only used to read data and making them available in JSON format for javascripts. My code so far looks like this, and I'm wondering if I have missed any opportunities to re-use code, maybe make some help classes. I have way too little experience doing OOP, so any help and suggestions here would be really appreciated. Here is my generalized code so far (tested and works); using System; using System.Configuration; using System.Web.Mvc; using System.Data; using System.Text; using System.Data.SqlClient; using Prototype.Models; namespace Prototype.Controllers { public class NameOfStoredProcedureController : Controller { char[] lastComma = { ',' }; String oldChar = "\""; String newChar = "&quot;"; StringBuilder json = new StringBuilder(); private String strCon = ConfigurationManager.ConnectionStrings["SomeConnectionString"].ConnectionString; private SqlConnection con; public StoredProcedureController() { con = new SqlConnection(strCon); } public string do_NameOfStoredProcedure(int parameter) { con.Open(); using (SqlCommand cmd = new SqlCommand("NameOfStoredProcedure", con)) { cmd.CommandType = CommandType.StoredProcedure; cmd.Parameters.AddWithValue("@parameter", parameter); using (SqlDataReader reader = cmd.ExecuteReader()) { while (reader.Read()) { json.AppendFormat("[{0},\"{1}\"],", reader["column1"], reader["column2"]); } } con.Close(); } if (json.Length.ToString().Equals("0")) { return "[]"; } else { return "[" + json.ToString().TrimEnd(lastComma) + "]"; } } //http://host.com/NameOfStoredProcedure?parameter=value public ActionResult Index(int parameter) { return new ContentResult { ContentType = "application/json", Content = do_NameOfStoredProcedure(parameter) }; } } }

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  • Cascading DropDown List in MVC 4

    - by Misi
    I have a ASP.NET MVC 4 project with EF I have a table with Parteners. This table has 2 types of parteners : agents(part_type=1) and clients(part_type=2). In an Create view I have the first DropDownList that shows all my agents, a button and the second DDL that shows all my clients that correspond to the selected agent. Q1 : What button shoud I use ? , , @Html.ActionLink() ? Create.cshtml <div class="editor-field"> @Html.DropDownList("idagenti", ViewData["idagenti"] as List<SelectListItem>, String.Empty) </div> @*a button*@ <div class="editor-label"> @Html.LabelFor(model => model.id_parten, "Client") </div> <div class="editor-field"> @Html.DropDownList("id_parten", String.Empty) @Html.ValidationMessageFor(model => model.id_parten) </div> OrdersController.cs public ActionResult Create(int? id) // id is the selected agent { var agqry = db.partener.Where(p => p.part_type == 1).Where(p => p.activ == true); var cltqry = db.partener.Where(p => p.part_type == 2).Where(p => p.activ == true); List<SelectListItem> idagenti = new List<SelectListItem>(); foreach (partener ag in agqry) { idagenti.Add(new SelectListItem { Text = ag.den_parten, Value = ag.id_parten.ToString() }); } if (id != null) { cltqry = cltqry.Where(p => p.par_parten == id); } ViewData["idagenti"] = idagenti; ViewBag.id_parten = new SelectList(cltqry, "id_parten", "den_parten");// } Q: How can I pass the selected agent id from the first DDL to my controller ?

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  • ASP.NET MVC editor template for property

    - by Idsa
    Usually I render my forms by @Html.RenderModel, but this time I have a complex rendering logic and I render it manually. I decided to create a editor template for one property. Here is the code (copy pasted from default object editor template implementation): <%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl" %> <% var modelMetadata = ViewData.ModelMetadata; %> <% if (modelMetadata.HideSurroundingHtml) { %> <%= Html.Editor(modelMetadata.PropertyName) %> <% } else { %> <% if (!String.IsNullOrEmpty(Html.Label(modelMetadata.PropertyName).ToHtmlString())) { %> <div class="editor-label"><%= Html.Label(modelMetadata.PropertyName) %></div> <% } %> <div class="editor-field"> <%= Html.Editor(modelMetadata.PropertyName) %> <%= Html.ValidationMessage(modelMetadata.PropertyName) %> </div> <% } %> And here is how I use it: @Html.EditorFor(x => x.SomeProperty, "Property") //"Property" is template above But it didn't work: labels are rendered regardless of DisplayName and editors are not rendered at all (in Watches Html.Editor(modelMetadata.PropertyName shows empty string). What am I doing wrong?

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  • How to create Ror style Restful routing in Asp.net MVC Web Api

    - by Jas
    How to configure routing in asp.net web api, to that I can code for the following actions in my ApiController inherited class? |======================================================================================| |Http Verb| Path | Action | Used for | |======================================================================================| | GET | /photos | index | display a list of all photos | | GET | /photos/new | new | return an HTML form for creating a new photo | | POST | /photos/ | create | create a new photo | | GET | /photos/:id | show | display a specific photo | | GET | /photos/:id/edit | edit | return an HTML form for editing a photo | | PUT | /photos/:id | update | update a specific photo | | DELETE | /photos/:id | destroy | delete a specific photo |

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  • ViewData.* and TModel in asp.net MVC

    - by Quintin Par
    After a week of asp.net mvc2, I still haven’t understood the advantages of ViewData.model or rather how I can properly utilize Viewdata. Can some teach me how to use Viewdata properly? Also what’s TModel that’s associated with viewdata? How does one utilize TModel? The viewdata explanation in spark view engine talks about TModel and I couldn’t get a clue of how I can use it in my projects. Can someone help me?

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  • Why does not Asp.net mvc application work on Asp.Net Classic Application Pool?

    - by Amitabh
    I have an Asp.Net MVC 2 web application deployed on IIS 7.5 on .Net 4.0. When I select application pool as Asp.Net v4.0 Classic I get the following error. HTTP Error 403.14 - Forbidden The Web server is configured to not list the contents of this directory. The same application works fine when I select application pool as Asp.Net v4.0 Integrated. Does anyone know what is the reason for this?

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