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• How can I perform action from ASP.NET MVC with different user credentials?

  - by Rob

  Hopefully this explanation will make sense, but what is the best way (if it is even possible) to pass along user credentials to preform a specific application from an ASP.NET MVC application. Currently I am working on trying to create directories on another server, we can't do this using the generic credentials that the application is running with; however, we have been told that we can if we pass the credentials of the user currently using the application along. Currently we are running on IIS 6.0 but will be moving to IIS 7.0 in the near future and likewise we are using Integrated Windows authentication for the web applications.

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• What is the reverse of GetVirtualPath for asp.net routing?

  - by Fredou

  From a virtualpath, I need to get his name. How can I do this? Since people think that I'm talking about file system here an example of what I need. With asp.net routing you can associate a name to a virtual file linked to a physical file. For an example, I can give the name homeEn to http://mysite.com/home which is linked to the physical file ~/homepage.aspx. What I need is from the virtual file http://mysite.com/home to get back homeEn name.

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• Why am I unable to Debug my ASP.NET website in Visual Studio?

  - by willem

  I used to be able to attach to my w3wp process and Debug my web application, but this is not working anymore. I have no idea what changed to break this. My breakpoints simply have the "breakpoint will currently not be hit. The source code is different from the original version." What I have tried: Did a solution Clean. Did a solution Rebuild. Deleted the bin folder Restarted Visual Studio Restarted IIS Restarted my Computer Added a simple Response.Write to ensure that the latest DLL is being used. It is. Made sure that Debug ASP.NET is checked in my project properties. It is. Made sure that all my projects are compiled in my build configuration. They are. But none of these help. I attach to w3wp, but my breakpoints never get hit. Any ideas?

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• Why does ASP.NET web site reference assembly from GAC, when adding local reference?

  - by Konstantin

  When you use ASP.NET web site (instead of web application model) and add reference to an assembly from local folder, Visual Studio, it seems, understands that this local assembly is also in GAC and so does NOT copy this assembly to bin folder (as it does with non-GAC assemblies), but simply adds new record in web.config file. Why such a behaviour? Is it possible to force copy to bin folder (I need this since .dll is not on target environment)? I can add assembly to bin folder as file and it will work, but in this case bin folder contents will be in source control, which is not good.

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• asp.net: Is it possible to have multiple login forms to access different subfolders?

  - by Anthony

  Hi, Is it possible to have multiple login pages for different folders within an asp.net application? Say I have this structure: /admin /customer /login-admin.aspx /login-customer.aspx I have 2 different login forms. One for the admin people and one for the customers (the forms are different as the customers need to provide extra information on their login page). In the authentication section of the webconfig file (which is at the root of the web app), I can only specify one Login page. So how can I make sure thaf if anyone tries to access a webpage in /admin they will be redirected to /login-admin.aspx and if they try to access a webpage in /customer they will be redirected to /login-customer.aspx ? Thanks, Anthony

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• [ASP.NET] Problems with error: "Access to the path <path> is denied."

  - by Tony

  Hi, I was looking for the the trick to resolve that error (google, stackoverflow.com etc) and every nothing works. I need to dinamically create an .aspx file via the asp.net application. What I've done to try fix it: 1) In the folder's Properties - Security, I've added IUSR_TONY and also IIS_IUSRS and allow them the Full control to the folder. Just to check if that will help. Nope, it won't. 2) in the IIS Manager, I tried to change the Application's Pool Defaults Identity (based on that) I checked all options, with no success I don't know what to do more to fix it. Any ideas ?

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• How do you implement paging in ASP.NET MVC?

  - by Kevin Pang

  Currently, I'm using a strategy found on many blog posts. Basically, the URL contains the page number (e.g. /Users/List/5 will give you the users on page 5 of your paged list of users). However, I'm not running into a situation where one page must list two separate paged lists. How do I go about doing this using ASP.NET MVC? Do I simply provide two url parameters (e.g. /Users/List?page1=1&page2=2)? Is there a better way by using partial views?

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• How do you read data from a ADODB stream in ASP as byte values?

  - by user89691

  I have an ASP routine that gets a binary file's contents and writes it to a stream. The intention is to read it from the stream and process it st the server. So I have: ResponseBody = SomeRequest (SomeURL) ; var BinaryInputStream = Server.CreateObject ("ADODB.Stream") ; BinaryInputStream.Type = 1 ; // binary BinaryInputStream.Open ; BinaryInputStream.Write (ResponseBody) ; BinaryInputStream.Position = 0 ; var DataByte = BinaryInputStream.Read (1) ; Response.Write (typeof (DataByte)) ; // displays "unknown" How do I get the byte value of the byte I have just read from the stream? Asc () and byte () don't work (JScript) TIA

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• Why would an ASP.NET site become veeeeeery slow after the network connection dropped?

  - by Joon

  I have an ASP.NET 3.5 site published in IIS 7.5 on Windows Server 2008 R2 64 bit. The pages are accessed over SSL One of our testers has determined that if, during a postback, he blocks network access on his PC, and then after a few seconds reconnects, our site becomes excruciatingly slow. Like 30 seconds per page load. If he hits the refresh button in his browser it stays slow. If he closes the tab, then re-opens it, it becomes fast again. This behavior happens with both IE 8 and the latest firefox. There are no event log entries on the server when this happens My question: - Has anyone seen this same behavior? - Does anyone have a theory as to what causes it?

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• How do you add a boolean attribute in asp.net mvc?

  - by bmavity

  I'm trying to output the following html using an html helper in asp.net mvc 2: <input type="text" id="Name" name="Name" value="" autofocus /> I'm using this code now: <%= Html.TextBoxFor(x => x.Name) %> and I've tried // results in <input ... autofocus="" /> <%= Html.TextBoxFor(x => x.Email, new { autofocus="" }) %> // does not compile <%= Html.TextBoxFor(x => x.Email, new { autofocus=null }) %> Is there any way to accomplish what I'm looking for using an html helper?

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• Hot to get custom http-header in asp.net?

  - by Sirius Lampochkin

  I have an asp.net appliction on the one server. There I've added code on server-side in Page_Load: Response.AddHeader("key", "password-key-from-hotel"); On the client side I have a form: $lt;form ... action="www.link-to-another-domaint" >   <input type="hidden" id="asd" value="fgh" > .... </form> <script type="text/javascript">   document.forms[0].submit(); </script> Then on the other domain - there is also my other application - I'm trying to get the hedaer "key" by this code: Request.Headers["key"].ToString(); But there is no such header. Is there is a desicion? Where is my mistake?

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• Can someone explain this block of ASP.NET MVC code to me, please?

  - by Pure.Krome

  Hi folks, this is the current code in ASP.NET MVC2 (RTM) System.Web.Mvc.AuthorizeAttribute class :- public virtual void OnAuthorization(AuthorizationContext filterContext) { if (filterContext == null) { throw new ArgumentNullException("filterContext"); } if (this.AuthorizeCore(filterContext.HttpContext)) { HttpCachePolicyBase cache = filterContext.HttpContext.Response.Cache; cache.SetProxyMaxAge(new TimeSpan(0L)); cache.AddValidationCallback( new HttpCacheValidateHandler(this.CacheValidateHandler), null); } else { filterContext.Result = new HttpUnauthorizedResult(); } } so if i'm 'authorized' then do some caching stuff, otherwise throw a 401 Unauthorized response. Question: What does those 3 caching lines do? cheers :)

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• How do I assign a non-persistent (in-memory) cookie in ASP.NET?

  - by Jørn Schou-Rode

  The following code will send a cookie to the user as part of the response: var cookie = new HttpCookie("theAnswer", "42"); cookie.Expires = DateTime.Now.AddDays(7); Response.Cookies.Add(cookie); The cookie is of the persistent type, which by most browsers will be written to disk and used across sessions. That is, the cookie is still on the client's PC tomorrow, even if the browser and the PC has been closed in between. After a week, the cookie will be deleted (due to line #2). Non-persistent/in-memory cookies are another bread of cookies, which have a lifespan determined by the duration of the client's browsing session. Usually, such cookies are held in memory, and they are discarded when the browser is closed. How do I assign an in-memory cookie from ASP.NET?

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• How to handle concurrency control in ASP.NET Dynamic Data?

  - by Andrew

  I've been quite impressed with dynamic data and how easy and quick it is to get a simple site up and running. I'm planning on using it for a simple internal HR admin site for registering people's skills/degrees/etc. I've been watching the intro videos at www.asp.net/dynamicdata and one thing they never mention is how to handle concurrency control. It seems that DD does not handle it right out of the box (unless there is some setting I haven't seen) as I manually generated a change conflict exception and the app failed without any user friendly message. Anybody know if DD handles it out of the box? Or do you have to somehow build it into the site?

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• Resize an asp.net panel width based on a checkboxlist?

  - by larryq

  Hi everyone, I have an asp.net panel that contains a checkboxlist. I'd like to resize it so that its width fits the list's contents snugly. Right now I'm handling the panel's pre rendering event, setting its width to match that of the checkboxlist. However it appears the checkboxlist's width property reads zero (at least in this pre render method) so the panel's width is set identically, which leads to inconsistent renderings in Firefox vs IE. Does anyone have a better approach to doing what I'm attempting here? Many thanks.

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• How to insert bulk data into mysql table from asp.net at once.

  - by kranthi

  Hi, I have a requirement that I need to read an excel sheet using asp.net/C# and insert all the records into mysql table.The excel sheet consists of around 2000 rows and 50 columns. Currently,upon reading the excel records ,I am inserting the records one by one using a prepare statement into mysql table.But its taking around 70 secs to do so because of the huge data. I've also thought of creating a new datarow, assigning values to each cell,adding the resulting datarow to datatable and finally calling dataadapter.update(...).But it seems to be complex because I got around 50 columns and hence I'll have to assign 50 values to the datarow. Could someone please suggest if there is an alternate to improve the performance of the insertion? Thanks

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• Can I fire a Text Changed Event for an asp.net Text Box before it loses focus?

  - by Xaisoft

  I have an asp.net TextBox in which I want to check if the text entered into the TextBox is > 0. It works once I tab out or click out of the TextBox, but if I keep focus on the TextBox, it won't fire the Text Changed Event, so I have the following scenario, I want to enable something if and only if the TextBox.Text.Length = 0. Now, if I put my caret in the TextBox and delete all the characters and then leave the caret in the TextBox so it still has focus and take my mouse and click a button, it will not do what it was supposed to do because it never fired the Text Changed Event. How would something like this be handled?

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• How can I get the Values of a CheckBoxList Made through Below code in asp.net MVC?

  - by SAHIL SINGLA

  I have Made the CheckboxList like this? <%foreach(ListItem m in bootcamp.STPs.ProjectManagement.Controllers.MemberController.JALLMembers()){%> <label for=""><%= m.Text %></label> <input id="Mana" type="checkbox" value="<%= m.Value %>" name="chkbx" /> <%}%> How can I get the Values of selected checkboxes through ajax script in controller? I am using Asp.net MVC?

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• How to pass special characters so ASP.NET MVC can handle correctly query string data?

  - by labilbe

  Hello, I am using a route like this one: routes.MapRoute("Invoice-New-NewCustomer", "Invoice/New/Customer/New/{*name}", new { controller = "Customer", action = "NewInvoice" }, new { name = @"[^\.]*" }); There is an action which handles this route: public ActionResult NewInvoice(string name) { AddClientSideValidation(); CustomerViewData viewData = GetNewViewData(); viewData.InvoiceId = "0"; viewData.Customer.Name = name; return View("New", viewData); } When I call return RedirectToAction("NewInvoice", "Customer", new {name}); and name is equal to "The C# Guy", the "name" parameter is truncated to "The C". So my question is : What is the best way to handle this kind of special character with ASP.NET MVC? Thanks!

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• ASP.NET: Why is my JavaScript object set to null?

  - by Giffyguy

  I have a <script> that contains this line: var tbl = document.getElementById("<%= this.tblSelection.ClientID %>"); ... but tbl always ends up being set to null. The table is declared like this: <asp:Table ID="tblSelection" runat="server" CellPadding="2" CellSpacing="0" cols="1" style="position: absolute; top: 0%; right: 0%"> Both the script and the table are in the same master page file. What could be causing this? EDIT: I should mention that this script is executed on onload

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• In an asp.net, how to get a reference of a custom webcontrol from a usercontrol?

  - by AJ

  Hi I have a page which holds a custom webcontrol and a usercontrol. I need to reference of webcontrol in usercontrol class. So, I make the declaration of webcontrol as public in page class. But, when I do “this.Page.”, I don’t see the webcontrol listed in list provided by intellisense. Most probably, I am missing something. In an asp.net page, how to get a reference of a custom webcontrol from a usercontrol? Please advise. Thanks Pankaj

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• How do I fire an asynchronous call in asp classic and ignore the response?

  - by Hexate

  Here's the gist: I have a call I want to make in asp, and I do not care about the response. I just want to fire the call and I do not want the page to wait for the response. According to the documentation, it should look something like this: dim xmlhttp : set xmlhttp = Server.CreateObject("MSXML2.ServerXMLHTTP") xmlhttp.Open "POST", url, true '' setting the 'asynchronous' option to 'true' xmlhttp.setRequestHeader "Content-Type", "application/soap+xml; charset=utf-8" xmlhttp.setRequestHeader "Content-Length", Len(XMLData) xmlhttp.send XMLData This works peachy when calling synchronously, but when I flip the ansynchronous option to 'true', nothing fires. What I can gather from the internet is that users do something like the following: While xmlhttp.readyState <> 4 xmlhttp.waitForResponse 1000 Wend Am I crazy in that this does not really seem like an asynchrous call anymore though if you are waiting for a response? putting the line xmlhttp.waitForResponse 1 right after the send will cause the request to fire, but again, I don't want to wait a second. Any thoughts?

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• Can someone give me an overview of ASP.net and how it's different from technologies such as php?

  - by DavidR

  I've been doing the html and css for a site, sending it off to a guy to implement in a web server. I get a call from the designer freaking out about the progress, saying the clients aren't happy. He wants me to personally integrate my css with what's on the site. The site is done in ASP.net, time is short, and I'm a little in over my head. I have an understanding of how php works, but have never worked extensively with it. Looking at the stuff on the ftp, I can't even find equivalent of the index.html file (I know that when I go to the site itself, there is nothing after the base url, i.e., www.site.com/ brings me to the homepage.) Can anyone give me a few tips or links as to what I am to do with this, or where to even being navigating this site?

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• Most flexible minimizer/compressor for ASP.NET MVC 2?

  - by AlexanderN

  From your experience, what's the most flexible minimizer/compressor (JS+CSS) for ASP.NET MVC you've dealt with? So far mbcompress doesn't seem to be too MVC friendly weboptimizer.codeplex.com lacks documentation clientdependency.codeplex.com is still in beta compress2 seems like a good candidate, but haven't tried it yet mvcscriptmanager only combines and compresses javascript but not CSS By flexible I mean Choose what should be compressed, minified, and combined Add exceptions. E.g. if debug don't compress XYZ.JS or don't minify ABC.CSS Caching In the end, it should help offer the best YSLOW score. If you know of any other assemblies out there, please list them also.

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• Asp .Net MVC Viewmodel should be class or struct?

  - by Jonas Everest

  Hey guys, I have just been thinking about the concept of view model object we create in asp.net MVC. Our purpose is to instantiate it and pass it from controller to view and view read it and display the data. Those view model are usually instantiated through constructor. We won't need to initialize the members, we may not need to redefine/override parameterless constructor and we don't need inheritance feature there. So, why don't we use struct type for our view model instead of class. It will enhance the performance.

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