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  • ASP.NET app never starts

    - by maxt3r
    Hi. After migrating my app to .NET 4 it's not starting. When i'm trying to load it in browser it endlessly loading it and nothing else happening. There is no errors or timeouts, just loading. Please help. What should i do? What reasons there might be? I'm using IIS6 btw.

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  • Show pdf in the browser in asp.net mvc

    - by Pankaj
    I have a tab on my page, when i click on this tab, i need to show a pdf file on page(browser). For this i am writing function on control like this public ActionResult PricedPdf(string projID,string fileName) { byte[] bArr = new byte[] { }; bArr =getdata(); return File(bArr, System.Net.Mime.MediaTypeNames.Application.Pdf, fileName+".pdf"); } Now my problem is when i render this, page only show some unreadable data not pdf.

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  • SQLite Asp.net Path Problem

    - by drorhan
    when using data source=|DataDirectory|\mydb.sqlite in visual studio 2008 i can not see the tables in query builder and in dataset designer. How can i fix this? it is a web application for .net 3.5 thanks a lot

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  • Take Control Of Web Control ClientID Values in ASP.NET 4.0

    Each server-side Web control in an ASP.NET Web Forms application has an ID property that identifies the Web control and is name by which the Web control is accessed in the code-behind class. When rendered into HTML, the Web control turns its server-side ID value into a client-side id attribute. Ideally, there would be a one-to-one correspondence between the value of the server-side ID property and the generated client-side id, but in reality things aren't so simple. By default, the rendered client-side id is formed by taking the Web control's ID property and prefixed it with the ID properties of its naming containers. In short, a Web control with an ID of txtName can get rendered into an HTML element with a client-side id like ctl00_MainContent_txtName. This default translation from the server-side ID property value to the rendered client-side id attribute can introduce challenges when trying to access an HTML element via JavaScript, which is typically done by id, as the page developer building the web page and writing the JavaScript does not know what the id value of the rendered Web control will be at design time. (The client-side id value can be determined at runtime via the Web control's ClientID property.) ASP.NET 4.0 affords page developers much greater flexibility in how Web controls render their ID property into a client-side id. This article starts with an explanation as to why and how ASP.NET translates the server-side ID value into the client-side id value and then shows how to take control of this process using ASP.NET 4.0. Read on to learn more! Read More >Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • Should one bind data with Eval on aspx or override ItemDataBound in code-behind?

    - by George Chang
    For data bound controls (Repeater, ListView, GridView, etc.), what's the preferred way of binding data? I've seen it where people use Eval() directly on the aspx/ascx inside the data bound control to pull the data field, but to me, it just seems so...inelegant. It seems particularly inelegant when the data needs to be manipulated so you wind up with shim methods like <%# FormatMyData(DataBinder.Eval(Container.DataItem, "DataField")) %> inside your control. Personally, I prefer to put in Literal controls (or other appropriate controls) and attach to the OnItemDataBound event for the control and populate all the data to their appropriate fields in the code-behind. Are there any advantages of doing one over the other? I prefer the latter, because to me it makes sense to compartmentalize the data binding logic and the presentation layer. But maybe that's just me.

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  • Fun Upgrading to .Net 4.0

    - by Sam Abraham
    We are currently in the process of upgrading one of our applications to .Net 4.0. Aside from us geeks wanting to always use latest and greatest technologies, an immediate business need for Silverlight 4.0 features justified our upgrade endeavor. The following is a summary of some issues we ran into with our web project:   For security purposes, the IIS 7 .Net 4.0 ISAPI filter is disabled. “Allow” it from the ISAPI and CGI Restrictions screen as shown:   Figure 1 - Allowing ASP.Net 4.0 ISAPI Filter   By default the Web Setup Project only requires the .Net Framework 4 Client Profile to be installed on target system, which offers a lighter weight install for client machines consuming .Net 4.0 applications. However, using certain .Net 4.0 features requires the full .Net 4.0 Framework as outlined in this link: http://msdn.microsoft.com/en-us/library/cc656912.aspx. We hence needed to update the installer to require the complete .Net 4.0 Framework on the target machine and to prompt for its installation if needed.   To accomplish this goal, we updated the installer’s launch conditions to check for .Net 4.0 as well as the installer prerequisites as shown:     Figure 2- Ensure Web Setup Project runs on full .Net 4.0 version Figure 3 - Launch Conditions screen Figure 4 - Set launch condition to .Net 4.0. Figure 5 -Changing installer prerequisites Figure 6 -Changing installer prerequisites

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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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  • Deployment Error: Silverlight 4.0 w/WCF RIA Services in ASP.NET MVC 2 App

    - by Dennis Ward
    I've got an MVC 2 App with an RIA Services link to a Silverlight Application. On my local machine, all is well, but when I deploy to Discount ASP servers, neither the MVC controller nor the WCF RIA services called from silverlight function: A silverlight datagrid gets a load error: System.ServiceModel.DomainServices.Client.DomainOperationException: Load operation failed for query... The remote server returned an error NotFound. In the MVC page where I had a simple table that worked prior to adding an EF model and DomainDataSource, I now get the error: Unable to load one or more of the requested types. Retrieve the LoaderExceptions property for more information. This is very similar to an issue I had before, but after upgrading from the betas of WCF/Silverlight 4, but the fix I had added there doesn't seem to work any longer. The link for that issue is: SL4/MVC2/WCF RIA Services = Load Error I'm really struggling with deploying, and could use some help if anybody can shed any light on this. Thanks! Dennis

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  • ASP.NET MVC Html.ActionLink Maintains Route Values

    - by Carl
    Hi, I have a question that has pretty much been asked here: http://stackoverflow.com/questions/780643/asp-net-mvc-html-actionlink-keeping-route-value-i-dont-want However, the final solution is a kludge, pure and simple and I really would like to understand why this happens, if someone can please explain it to me? For completeness, it is possible to recreate the scenario very easily: Create a new MVC web app. Run it up. Visit the About tab Modify the URL to read /Home/About/Flib - This obviously takes you to the action with an id of 'Flib' which we don't care about. Notice that the top menu link to About now actually links to /Home/About/Flib - this is wrong as far as I can see, as I now have absolutely no way of using site links to get back to /Home/About I really don't understand why I should be forced to modify all of my Html.ActionLinks to include new { id = string.Empty } for the routevalues and null for the htmlAttribs. This seems especially out of whack because I already specify id = 0 as part of the route itself. Hopefully I'm missing a trick here.

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  • "Place code in separate file" in Visual Studio 2008 with ASP.NET

    - by Ben McCormack
    I'm reading a book that recommends clicking a check box that says "Place code in separate file" when adding a new Web Form to an existing ASP.NET project. The book is using Visual Studio 2005 and there is a check box for "Place code in separate file" when you open the "Add New Item" dialog. I am using Visual Studio 2008 and I do not see the "Place code in separate file" checkbox when I try to add a new item. Is there something I need to do to enable this? Was this functionality no longer possible/important in VS 2008?

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  • ASP.NET MVC Custom Role Provider/RolePrincipal

    - by Keith K
    My asp.net MVC application is not caching roles instead it round tripping to the database every request. Also when I attempted to view the cookie I noticed it had not been written to the browser. Web.config: <roleManager defaultProvider="CustomRole" enabled="true" cacheRolesInCookie="true" cookiePath="/" cookieName="CustomRole" maxCachedResults="25" cookieSlidingExpiration="true" cookieProtection="All" cookieRequireSSL="false" createPersistentCookie="false"> <providers> <clear/> <add name="CustomRole" type="Membership.CustomRole, Membership" connectionString="MemberDB" applicationName="/"/> </providers> </roleManager>

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  • asp.net mvc enabling session state

    - by Erwin
    Hi fellow programmer I'd like to use session variables in my ASP.NET MVC application. I already added tag in my web.config file like this <sessionState mode="InProc" stateConnectionString="tcpip=127.0.0.1:2967" sqlConnectionString="data source=127.0.0.1;trusted_connection=true" cookieless="false" timeout="20" /> But I still can't use session variables in my application I set the var like this in my login method Session["username"] = userName; and retrieve it like this ba.user_id = (string)Session["username"]; I got null string when retrieving.

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  • How to get the checked checkbox from a ASP.NET MVC2 form

    - by JF
    I have a hard time in asp.net MVC2 trying to get the checked values of different checkbox. Here is my view <div id="RoleSelection"> <ul> <% foreach (var roles in Model.Roles) { %> <li> <input type="checkbox" id="roles" value="<%: roles %>" /> <%: roles %> </li> <% } %> </ul> </div> My model: [LocalizedDisplayName("Role", NameResourceType = typeof(UserResources))] public string Role { get; set; } public IEnumerable<string> Roles { get; set; } So basically here I'm trying to figure out how to get all the checked checkbox from my form! Thank you

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  • ASP.NET MVC FileContentResult IE 8.0 hangs on download

    - by marc.d
    some of my users are expieriencing problems when they try to download a report, the download just hangs on 0%, restarting IE usually fixes the problem. why does this happen? i am using ASP.NET MVC (v1), the my action looks like this <Authorize()> _ <AcceptVerbs(HttpVerbs.Get)> _ Function RenderReport(ByVal guid As Guid, ByVal anonym As Boolean) As FileContentResult ... Dim mimeType As String = String.Empty Dim renderedBytes() As Byte = EmployeePresentation.Render(guid, mimeType, Server.MapPath("~/Reports/..."), anonym) Return File(renderedBytes, mimeType, filename) End Function the filename is US-ASCII encoded, filesize is usally around 300Kb, mimeType is application/pdf tia

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  • ASP.NET: Dynamically enable or disable RequiredFieldValidator based on value of DropDownList

    - by Jeremy
    I have an ASP.NET form with three text inputs, one each for "Work Phone", "Home Phone" and "Cell Phone". Each of these text inputs has a RequiredFieldValidator associated with it. I also have a DropDownList where the user can select the preferred phone type. I want to only require the field that is selected in the DropDownList. For example, if the user selects "Work Phone" from the DropDownList, I want to disable the RequiredFieldValidator for "Home Phone" and "Cell Phone", thereby only making the "Work Phone" field required. I have a method that enables and disables these validators based on the value of the DropDownList, but I cannot figure out when to call it. I want this method to run before the validation takes place on the page. How would I do that? Let me know if you need any more information. Thanks.

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  • ASP.NET Routing : RouteCollection class missing

    - by Shyju
    I am developing a website(web forms , not MVC) in VS 2008(with SP1 ).I am trying to incorporate the ASP.NET Routing.I am following the MSDN tutorial to do it. http://msdn.microsoft.com/en-us/library/cc668201.aspx I have added the below items to my glbal.asax.cs file as per the tutorial protected void Application_Start(object sender, EventArgs e) { RegisterRoutes(RouteTable.Routes); } public static void RegisterRoutes(RouteCollection routes) { routes.Add(new Route ( "Category/{action}/{categoryName}" , new CategoryRouteHandler() )); } When trying to build it is telling like "The type or namespace name 'RouteCollection' could not be found (are you missing a using directive or an assembly reference?) I have System.web imported to my global.asax file Any Idea how to get rid of it ?

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  • Authenticate into asp.net app from a winforms app

    - by tempid
    Hi there! We have 2 applications - 1 windows and 1 web (asp.net). Winforms runs on the customer's machine where as the website is hosted within our company. The winforms has a link which opens the web app in a browser window. The web app is secured so the login page is shown. The username and password is the same as the windows app login. How do I auto-login to the web app so the user will not see the login screen? The web app uses FormsAuthentication.SetAuthCookie to create an encrypted cookie on the user's machine. How do I create the same from the winforms app so the user will not see the login screen? Thanks.

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  • ASP.NET 4 - IIS 7 - Request timed out - Request timed out

    - by sharru
    My website is running on Asp.net v4 , IIS 7 , Windows server 2008. My cpu is running on 20-30% and the site is responding quickly. Every 2-5 mins i'm receiving the following error: Event code: 3001 Event message: The request has been aborted. Exception type: HttpException Exception message: Request timed out. , Request information: Request URL: http://www.xxxx.com/Services/AxRefresh.asmx/AxUpdate Request path: /Services/AxRefresh.asmx/AxUpdate User host address: 84.110.251.198 User: Is authenticated: False Authentication Type: Thread account name: NT AUTHORITY\NETWORK SERVICE i read that the error is related to the maximum concurrent requests limit http://support.microsoft.com/kb/821268 but then i found out that on IIS 7 this limitation is changed and not relevant. http://msdn.microsoft.com/en-us/library/dd560842(VS.100).aspx Any other ideas what can be the problem or where to start looking ? Thx!

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  • Fiddler not sniffing SOAP traffic from ASP.NET website

    - by JohnIdol
    So far I've been successfully using fiddler to sniff web service traffic from both test fixtures, console apps and web projects. Today I noticed I am not able anymore to sniff that kind of traffic if I am running my web application (it's a ASP.NET website, hosted locally on IIS). I see all the local traffic but the web service traffic is just gone (the service is being hit as I do see the response debugging into the code). I am still able to successfully sniff soap requests and responses from test fixtures or console apps in the same solution (exact same environment). If it was a windows (I am on Win7) security update or the likes it would never work I guess (unless it affects only traffic routed through IIS). What should I be looking for that could cause the emergence this behavior? Any pointers appreciated!

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  • ASP.NET MVC: AuthorizeAttribute on default page

    - by AlexB
    The default controller in my ASP.NET MVC project is decorated with the [Authorize] attribute. When I deploy the website on my development machine and access the website, I am redirected to the login page (defined in forms loginUrl section of the Web.Config). Result: everything works as expected. When I publish the website on our production server (Windows Server 2008, IIS 7, DefaultAppPool) and access the website, the expected address shows in the address bar (/Account/LogOn?ReturnUrl=*my_expected_return_url*), but the page displays "You do not have permission to view this directory or page." instead of the login page. If I remove the [Authorize] attribute on the default controller/action, the page displays correctly. My Web.Config file: sessionState mode="InProc" timeout="30" authentication mode="Forms" forms loginUrl="~/Account/LogOn" timeout="2880"

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  • How to prevent Project ASP.NET Configuration and Team Foundation Server from fighting

    - by Brian
    So, I am using visual studio 2005 (and team explorer 2005) with tfs 2008. I have installed both Visual Studio 2005 SP1 and VS80sp1-KB932544-X86-ENU.exe. I perform the following steps: Select Project-ASP.NET Configuration within Visual Studio 2005. Within Visual Studio 2005, attempt to perform either a check-in or a checkout. The following happens: The local server started by Visual Studio starts closing itself. I suspect it is crashing; the systray icons are not properly disposed of. It then reopens itself. It does this over and over again, maybe once every second or two. The TFS progress meter doesn't even budge, it just sits there. Canceling out of the checkout does not work; it says it is cancelling and does nothing. Any suggestions?

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