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• Efficiency Question for an Ajax App

  - by Kubi

  Hi, Currently I am dealing with a web application which uses a txt file as a database for testing for now. But we will connect it to a server later on. My question is, if there is a more efficient way to get my objects than the way I am using now. During the page_init I am getting all my objects into a Collection as List, then I am populating the ajax toolkit accordion objects in the page with that. I have some client side buttons which fires callbacks for getting some other objects to populate the accordions in an update panel. And I am using .net Collections too much like dictionary and list, I am wondering if using arrays is more efficient. Could you advise me about how to make this site better and faster ? Is it better or possible to initialize those TravelP objects in javascript at the beginning and use it like that ? Any comments would be greatly appreciated, Thanks

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• RenderAction not finding action method in current controller in current area

  - by Andrew Davey

  I'm creating an ASP.NET MVC 2 (RTM) project that uses areas. The Index action of the Home controller of one area needs to use RenderAction to generate a sub-section of the page. The action called is also defined in the same Home controller. So the call should just be: <% Html.RenderAction("List") %> However, I get an exception: A public action method 'List' was not found on controller 'RareBridge.Web.Areas.Events.Controllers.HomeController'. Note that I'm not in the "Events" area! I'm in a completely different area. If I remove the "Events" home controller, then the exception still occurs but names a different controller (still not the one I want it to call). I've also tried providing the controller name and area to the RenderAction method, but the same exception occurs. What is going on here? BTW: I am using Autofac as my IoC container

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• get current logged in userID in aspnet mvc membership

  - by FosterZ

  hi, i am trying to show a list of users of my application "school", when admin logs in then he can view all the users in list but when school principals logins, he should get only users of his school, So i thought to get the current loggedIn userId first and then by that userId i'll get schoolId since userId is foreign key in school table...once i'll get the schoolId i can show the members of that school. But my problem is how to get the UserID of currently loggedIn. I'm using MVC 1.0 Asp.Net -- "Membership" if my logic above is wrong then please tell me the alternate good idea, so that principal can see only his users list..

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• System.Threading.Tasks - Limit the number of concurrent Tasks

  - by James

  I have just started to look at the new "System.Threading.Tasks" goodness in .Net 4.0, and would like to know if there is any build in support for limiting the number of concurrent tasks that run at once, or if this should be manually handled. E.G: If I need to call a calculation method 100 times, is there a way to set up 100 Tasks, but have only 5 execute simultaneously? The answer may just be to create 5 tasks, call Task.WaitAny, and create a new Task as each previous one finishes. I just want to make sure I am not missing a trick if there is a better way to do this. Thanks for any help.

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• Will dbCommand.Close() close the connection as well?

  - by J.W.

  I have the following ado.net code, if I already use using to wrap my DBCommand, do I have to close the underneath connection explicitly? Thanks, public static void ExecuteSQL(int Id) { Database db; const string sqlCommand = "Stored Procedure Name"; try { db = DatabaseFactory.CreateDatabase(); using (DbCommand dbCommand = db.GetStoredProcCommand(sqlCommand)) { db.AddInParameter(dbCommand, "p_Id", DbType.Int32, Id); db.ExecuteNonQuery(dbCommand); **//do I have to close connection explicitely here??** if (dbCommand.Connection.State != ConnectionState.Closed) { dbCommand.Connection.Close(); } dbCommand.Connection.Dispose(); } } catch (Exception ex) { Logger.Log.Error(ex.StackTrace, ex); throw; } }

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• Collection of MVC CSS files available?

  - by Jaxidian

  Just curious - are there various customized Site.css files (and accompanying images) that work with the default ASP.NET MVC 2 templates? I'm a stereotypical developer who "doesn't do pretty" so I'd like to find a design that is good enough for me to use until I later have a designer come back and fix my design. Are there collections/libraries of various designs out there that work with the default templates? I did find this but the 2 popular ones I tried seem like they're for MVC 1, plus they in no way used the default tags with the MVC 2 templates.

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• Debugging asp.net with firefox and visual studio.net - very slow compared to IE

  - by john

  Debugging asp.net websites/web projects in visual studio.net 2005 with Firefox is loads slower than using IE. I've read something somewhere that there is a way of fixing this but i can't for the life of me find it again. Does anyone know what i'm on about and can point me in the right direction please? Cheers John edit sorry rob i haven't explained myself very well(again). I prefer Firefox for debugging (firebug etc) hitting F5 when debugging with IE the browser launches really quickly and clicking around my web application is almost instant and when a breakpont is hit i get to my code straight away with no delays. hitting F5 when debugging with FireFox the browser launches really slowly (ok i have plugins that slow FF loading) but clicking around my web application is really really slow and when a breakpoint is hit it takes ages to break into code. i swear i've read something somewhere that there is a setting in Firefox (about:config maybe?) that when changed to some magic setting sorts all this out.

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• Custom Errors "Could no load type error"

  - by anil

  I am creating ASP.Net MVC application and want to handle errors globally. I have set web.config value as mode=On and defaulRedirect="Error.aspx". I have Error.aspx at two places. One at Views/Shared folder and one at project root folder level. But each time an unhandled error occurs, the error page at root level gets called. How can I make it redirect to the one at Shared folder level? I want to do this becasuse, currently I am getting error as "could not load type System.Web.Mvc.ViewPage" when any error is occuring. Regards, Anil

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• MVC: On partial page start validation from JS without postback

  - by dwilliams459

  How do I start validation from the client/javascript using the MS MVC Validation library? Using MS ASP.Net MVC, I have a page with a PartialView in a modal dialog (change password). When the user selects 'save', I need to validate this on the client side without a full page postback. I am able in JS to post and refresh the partialView, however I am unable to start client validation. The MS MVC validation starts on postback (Input type='submit'). How can I start this in JS? Validation on the full page with postback works. Thanks, d

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• Can't explain why not redirecting after login using RedirectFromLogin

  - by Blankman

  I am using ASP.NET MVC, on my login action I am doing: [AcceptVerbs("POST")] public ActionResult Login(FormCollection form) { User validatedUser = // tests username/pwd here. FormsAuthentication.RedirectFromLoginPage( validatedUser.ID.ToString(), rememberMe); if(String.IsNullOrEmpty(Request["ReturnUrl"])) string redirectUrl = Request["ReturnUrl"]; if (!String.IsNullOrEmpty(Request.QueryString["ReturnUrl"])) string redirectUrl = Request["ReturnUrl"]; } My url looks like this when I am on the login page: http://localhost:56112/user/login?ReturnUrl=/admin/settings Does anything look wrong here? My web.config: <authentication mode="Forms"> <forms loginUrl="/user/login" protection="All" timeout="30" name="SomeCookie" requireSSL="false" slidingExpiration="true" defaultUrl="default.aspx" />

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• entity framework, loadproperty not working - The selector expression for LoadProperty must be a Memb

  - by SLC

  The selector expression for LoadProperty must be a MemberAccess for the property. I'm converting some C# to VB, this is the C# line: entities.LoadProperty((MyType)MyTargetObject, c => c.MyProperty); I convert it to VB like so: entities.LoadProperty(DirectCast(MyTargetObject, MyType), Function(c) c.MyProperty) However I get the error above. I don't understand what the code is doing, or anything at all, I am simply converting it line by line into Visual Basic. When I run the project, the error I get is the one above. All I can see is that Entities is a class that inherits ObjectContext, which might mean something. Any help would be soooo good because I am stressing out big time. Thanks.

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• Review my ASP.NET Authentication code.

  - by Niels Bosma

  I have had some problems with authentication in ASP.NET. I'm not used most of the built in authentication in .NET. I gotten some complaints from users using Internet Explorer (any version - may affect other browsers as well) that the login process proceeds but when redirected they aren't authenticated and are bounced back to loginpage (pages that require authentication check if logged in and if not redirect back to loginpage). Can this be a cookie problem? Do I need to check if cookies are enabled by the user? What's the best way to build authentication if you have a custom member table and don't want to use ASP.NET login controls? Here my current code: using System; using System.Linq; using MyCompany; using System.Web; using System.Web.Security; using MyCompany.DAL; using MyCompany.Globalization; using MyCompany.DAL.Logs; using MyCompany.Logging; namespace MyCompany { public class Auth { public class AuthException : Exception { public int StatusCode = 0; public AuthException(string message, int statusCode) : base(message) { StatusCode = statusCode; } } public class EmptyEmailException : AuthException { public EmptyEmailException() : base(Language.RES_ERROR_LOGIN_CLIENT_EMPTY_EMAIL, 6) { } } public class EmptyPasswordException : AuthException { public EmptyPasswordException() : base(Language.RES_ERROR_LOGIN_CLIENT_EMPTY_PASSWORD, 7) { } } public class WrongEmailException : AuthException { public WrongEmailException() : base(Language.RES_ERROR_LOGIN_CLIENT_WRONG_EMAIL, 2) { } } public class WrongPasswordException : AuthException { public WrongPasswordException() : base(Language.RES_ERROR_LOGIN_CLIENT_WRONG_PASSWORD, 3) { } } public class InactiveAccountException : AuthException { public InactiveAccountException() : base(Language.RES_ERROR_LOGIN_CLIENT_INACTIVE_ACCOUNT, 5) { } } public class EmailNotValidatedException : AuthException { public EmailNotValidatedException() : base(Language.RES_ERROR_LOGIN_CLIENT_EMAIL_NOT_VALIDATED, 4) { } } private readonly string CLIENT_KEY = "9A751E0D-816F-4A92-9185-559D38661F77"; private readonly string CLIENT_USER_KEY = "0CE2F700-1375-4B0F-8400-06A01CED2658"; public Client Client { get { if(!IsAuthenticated) return null; if(HttpContext.Current.Items[CLIENT_KEY]==null) { HttpContext.Current.Items[CLIENT_KEY] = ClientMethods.Get<Client>((Guid)ClientId); } return (Client)HttpContext.Current.Items[CLIENT_KEY]; } } public ClientUser ClientUser { get { if (!IsAuthenticated) return null; if (HttpContext.Current.Items[CLIENT_USER_KEY] == null) { HttpContext.Current.Items[CLIENT_USER_KEY] = ClientUserMethods.GetByClientId((Guid)ClientId); } return (ClientUser)HttpContext.Current.Items[CLIENT_USER_KEY]; } } public Boolean IsAuthenticated { get; set; } public Guid? ClientId { get { if (!IsAuthenticated) return null; return (Guid)HttpContext.Current.Session["ClientId"]; } } public Guid? ClientUserId { get { if (!IsAuthenticated) return null; return ClientUser.Id; } } public int ClientTypeId { get { if (!IsAuthenticated) return 0; return Client.ClientTypeId; } } public Auth() { if (HttpContext.Current.User.Identity.IsAuthenticated) { IsAuthenticated = true; } } public void RequireClientOfType(params int[] types) { if (!(IsAuthenticated && types.Contains(ClientTypeId))) { HttpContext.Current.Response.Redirect((new UrlFactory(false)).GetHomeUrl(), true); } } public void Logout() { Logout(true); } public void Logout(Boolean redirect) { FormsAuthentication.SignOut(); IsAuthenticated = false; HttpContext.Current.Session["ClientId"] = null; HttpContext.Current.Items[CLIENT_KEY] = null; HttpContext.Current.Items[CLIENT_USER_KEY] = null; if(redirect) HttpContext.Current.Response.Redirect((new UrlFactory(false)).GetHomeUrl(), true); } public void Login(string email, string password, bool autoLogin) { Logout(false); email = email.Trim().ToLower(); password = password.Trim(); int status = 1; LoginAttemptLog log = new LoginAttemptLog { AutoLogin = autoLogin, Email = email, Password = password }; try { if (string.IsNullOrEmpty(email)) throw new EmptyEmailException(); if (string.IsNullOrEmpty(password)) throw new EmptyPasswordException(); ClientUser clientUser = ClientUserMethods.GetByEmailExcludingProspects(email); if (clientUser == null) throw new WrongEmailException(); if (!clientUser.Password.Equals(password)) throw new WrongPasswordException(); Client client = clientUser.Client; if (!(bool)client.PreRegCheck) throw new EmailNotValidatedException(); if (!(bool)client.Active || client.DeleteFlag.Equals("y")) throw new InactiveAccountException(); FormsAuthentication.SetAuthCookie(client.Id.ToString(), true); HttpContext.Current.Session["ClientId"] = client.Id; log.KeyId = client.Id; log.KeyEntityId = ClientMethods.GetEntityId(client.ClientTypeId); } catch (AuthException ax) { status = ax.StatusCode; log.Success = status == 1; log.Status = status; } finally { LogRecorder.Record(log); } } } }

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• Pop-up Window was moved but its image still left behind.

  - by andrew

  Hi, I'm using VS 2005 and .NET framework 2.0 SP2 to build an application with a datagridview in it. I'm using Microsoft Word 11.0 Object Library to do the spelling checker on one of the field in datagridview. When it detected a spelling and grammar window would pop-up open on top of the datagridview. The problem I got was when I moved the pop-up window to the new location, there's still an image of the pop-up window left behind the previous location. The more I moved the more of those copied image would be created on screen. How I can overcome this problem? Thanks in advance, Andrew

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• Passing parameters to a flash movie inserted in a VB program

  - by Michael

  Hi! I need to insert a Flash movie in a Visual Basic 2008 express form and send parameters to the movie, but am a newbie to VB. The flash movie will plot points sent by VB in a graph. I tried to insert the Shockwave Flash control in the form but cannot find it anywhere. So I inserted the webbrowser control, which I understand can be used to a similar purpose. But how would I send the values of X and Y (coordinates to plot in Flash) to the flash swf? Thanks for any help!

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• How to prevent MSBUILD from copying dependent GAC assemblies to bin

  - by Matt Wrock

  I have a msbuild task that builds my solution and I am migrating it from .net 3.5 to 4.0. I have some dependent DLLs that have Local Copy set to true. The 4.0 version of msbuild is not only copying the dependent DLL (which I want), it is also copying all dependent assemblies of that DLL from the 32 bit version of the GAC to my bin. Not only do I not want these files being copied from the GAC, I especially do not want the 32 bit versions for this 64 bit build. Has the behavior changed in msbuild 4.0? And does anyone know how to force msbuild to use the behavior in 3.5?

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• Overriding SQLMembershipProvider in C#

  - by vikp

  Hi, Is there built in methods into .net framework to do the following: Get role GUID from user name/user GUID Get role name from role GUID So far I have been sending queries to the asp_roles and asp_users tables to obtain that information and I'm wondering if there is a nicer way of doing this? I have the following methods that I store in the ASPUtilities class: getRoleGUID(guid userGuid) { LINQ joins } getRoleGuid(string userName) { LINQ joins } getRoleName(guid roleGuid) { LINQ joins } Thank you EDIT: I have just looked into extending SQLMembershipProvider examples. Few examples completely override the SQLMembershipProvider, but I think what I'm interested is just adding few extra methods to deal with the roles by using LINQ. Is this feasible?

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• Software to simplify displaying build status on a big visible monitor for team?

  - by MikeJ

  I had a little bit of budget left at year end and I wanted to start a little skunk works project to display build status what everyone was working on (our team is aobut 10 folks all told). I am thinking to buy a 47" LCD HD TV and drive it from a small pc via a browser/.NET web application. I was going to build the software over the christmas break since we are closed for 2 weeks starting this Friday. I thought I would solicit advise/feedback on what other teams had done. a lot of the tools we use SVN, Mantis have RSS feeds that I was thinking to render. Is this the way to go ? Thanks for any feedback in advance.

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• Sitecore - Rich Text Editor field is not saving information but instead just copying old information

  - by Younes

  We are using Sitecore.NET 5.3.1 (rev. 071114) and we found out a problem. When we are trying to change information in a Rich Text Editor field on the Master database and save the information, this information is not stored and instead the old information appears back into the RTE field. I have been trying this on the Web database on which this is not happening. However, changing this information on the web database feels useless because a publish will just change every information that does not correspond to the data in the Master database in which i just can't edit this field. So I'm having big trouble at this point since this is for one of our bigger customers and they really want this fixxed asap. We (Estate Internet) already have had an open ticket for this problem, but never got the solution. Hope that someone here knows what the problem may be.

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• How to organized page specific CSS link tags with spark view pages and application.spark

  - by dbr

  I'm currently using ASP.NET MVC 2 and the spark view engine. The main master page (application.spark) contains all of the CSS link tags that need to be present for all pages (global stuff). However, I have some content pages that have page specific CSS tags and currently I'm just sticking the link tag in the body as something like: <content name="MainContent"> <!-- page specific csss --> <link rel="stylesheet" href="/Content/css/page_specific.css" /> My problem is that when the page renders, this tag ends up in the which is not where it needs to be. Is there a solution for this? One idea I had was to check the controller in the Application.spark page and write out which page specific css file is required for that particular controller, however, that solution doesn't seem to scale well and I would imagine there is some way of creating the link in the child page and having it render where it's supposed to by the browser.

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• Need Users to Re-authenticate with NTLM

  - by Trey Carroll

  I'm NTLM (authenication="windows" in the web.config) with an asp.net mvc 2.0 site. Right now once a user logs in it keeps them logged in for weeks at a time. The use of the application is being opened up to users who share computers that use logged in service accounts. I need the site to reprompt each user for their AD credentials each time in order to handle these users. (Activity on the site must be linked to a uniquely identified user.) Thanks for any help that you can provide. Trey Carroll

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• What is CDbl doing?

  - by Dan Tao

  I had until recently been under the impression that the CDbl(x) operation in VB.NET was essentially a cast (i.e., the VB equivalent of (double)x in C#); but a recent discovery has revealed that this is not the case. If I have this string: Dim s As String = "12345.12345-" And I do this: Dim d As Double = CDbl(s) d will be set to the value -12345.12345! Now, don't get me wrong, this is kind of convenient in my particular scenario; but I have to admit I'm confused as to why this works. In particular, I'm confused because: Double.Parse does not work with the above input. Double.TryParse does not work. Convert.ToDouble does not work. How is CDbl so clever?

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• Problems publishing website

  - by Oxymoron

  Recently I've began experimenting with ASP.NET MVC and the Entity Framework. Since my hostingprovider only provides me with MySQL I've been trying to set that up. Locally everything works fine, but after I publish it I get the following error: [ProviderIncompatibleException: The store provider factory type 'MySql.Data.MySqlClient.MySqlClientFactory' does not implement the IServiceProvider interface. Use a store provider that implements this interface.] Since I'm rather inexperienced with the configuring this and google is lacking a good answer I thought I'd try here. My best guess is something missing in the web.config file, but can't really make out what it is. Any help would be greatly appreciated!

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• Best strategy for HTML partial rendering based on multiple dropdown values

  - by pv2008

  I have a View that renders something like this: "Item 1" and "Item 2" are <tr> elements from a table. After the user change "Value 1" or "Value 2" I would like to call a Controller and put the result (some HTML snippet) in the div marked as "Result of...". I have some vague notions of JQuery. I know how to bind to the onchange event of the Select element, and call the $.ajax() function, for example. But I wonder if this can be achieved in a more efficient way in ASP.NET MVC2.

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• request query convert from vb to c#

  - by hossam

  this code is made by vb,page name:main.aspx when i type the url like that main.aspx?sStyle=0 it type word Yes in the page and if i type the url like that main.aspx?sStyle=0 it type word No in the page <%@ Page Language=VB Debug=true %> <% Dim sStyle If Request.QueryString("sStyle") = "0" Or Len(Request.QueryString("sStyle")) = 0 Then Me = 0 ElseIf Request.QueryString("sStyle") = "1" Then Me = 1 End If %> <%If sStyle = "0" Then%> Yes <%End If%> <%If sStyle = "1" Then%> No <%End If%> ========================================================= my question is how do i make the exact same page using c# Regards

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• pass other value than #VALX and #VALY in postback of series to get value on chart click event

  - by rahularyansharma

  I am using asp.net chart control and i want to use chart click event to get the deptId value of bar click in bar chart . <Series> <asp:Series Name="Tour" ChartType="Column" ChartArea="MainChartArea" PostBackValue="#VALX"> </asp:Series> <asp:Series Name="Inspection" ChartType="Column" ChartArea="MainChartArea" PostBackValue="#VALX"> </asp:Series> <asp:Series Name="NightHalt" ChartType="Column" ChartArea="MainChartArea" PostBackValue="#VALX"> </asp:Series> </Series> I am using department name to show on X axis but i want to capture deptid on chart click event . In above markup i use #VALX in series postback event but its give me deptname in click event protected void AllDepartmentComparisonBarChart_Click(object sender, ImageMapEventArgs e) { e.PostBackValue; }

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