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  • Can the Windows Indexing Service restart an app pool if it doesn't index the Web.Config?

    - by JamesEggers
    I am having a slight debate with a colleague of mine on this subject. Scenario: A web site has a sub directory that is indexed using the Windows Indexing Service. There is not a web.config in this directory and the indexing service is not indexing the parent directory which is the site root. Something is causing the app pool to restart at supposedly random times. From what I am finding online, the only time the Windows Indexing service would cause an app pool restart is if it's indexing the web.config (or machine.config). My colleague is saying that the indexing service is causing the restarts just because it's in a child folder of the root. So...does anyone have any information or experience on this? If the indexing service is indexing a child folder of the root but not the root directory itself, can it cause IIS to restart the site's app pool? EDIT: The sub directory in question is NOT the bin directory. I know it would cause such as well; however, the bin directory is not the target of the indexing service.

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  • Multiple update panels and multiple postbacks cause entire page to refresh...

    - by Matt
    I'm having the same problem I had yesterday... The solution Aristos provided helped solve the problem, but I have other places sending updatepanel postbacks causing the same problem. When an update panel is updated and another request for an update is called before it has a chance to render the first updates, the entire page refreshes instead of just the update panel. I used fiddler to see what was going on and here's what happens... If I wait for the request to return before doing another request I get this: 21443|updatePanel|dnn_ctr1107_CRM_SalesTool_LeadsUpdatePanel| But if I don't wait, I get this: 66|pageRedirect||http://mysite.com/salesdashboard.aspx| The code from the previous question is still the same except I added UpdateMode="Conditional" to the update panel. Any ideas? Or is the only solution to this making sure that 2+ updates for any number of update panels (as long as they're on the same page) never happen? Thanks, Matt

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  • Downloaded StructureMap but seems to be missing the Log4Net.Dll

    - by Rachel Shearer
    I am currently following instructions in a book to develop an application. It asks me to download StructureMap and then move the StructureMap.Dll file and the Log4Net.dll into the bin files. The problem is there doesnt seem to be a Log4Net.dll file in the StructureMap files, the only other dll apart from the StructureMap.dll is the Rhino.Mock.dll. can anyone help? Thanks Rachel

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  • MVC.NET project won't start under IIS 5.1 on Windows XP SP3

    - by mrjoltcola
    I've a MVC.NET 2 project that runs fine under Windows 7 and will start on Windows XP if I use the Visual Studio Development Server, however, starting under IIS generates an error: Unable to start debugging on the web server With the message The specified procedure could not be found No errors in the system event viewer. If I start without debugging I get an "HTTP 500 Internal Server Error" The reason I run it under IIS is the project also includes some WCF wsHttp web services that use certificates, so the VS Development Server is not adequate for hosting those. I have already seen the links on SO that talk about adding the wildcard mapping. I've already done that, just as I've done on Windows Server 2003 where I successfully host MVC.NET RC2 for quite a while.

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  • Validation on DropDownListFor not working with DataAnnotations

    - by Noel
    If I have a drop down list as follows <div class="editor-label"> <%= Html.DropDownListFor(model => model.CardDetail.SelectedCardSchemeId, Model.CardDetail.CardSchemes, "Select")%> </div> and in my model I am using DataAnnotations [Required(ErrorMessage = "* Required SelectedCardSchemeId Message")] public int SelectedCardSchemeId { get; set; } How can I get the message to appear in the view? In debug I can see the ModelState error is populated, but the message is not displayed on the view. I do not have issues with displaying error message for other controls (TextBoxFor)

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  • How to call RequiredFieldValidator on client before postback

    - by Si
    I've inherited some code which breaks a page up into tabs using divs. On the first page there are many required field and regex validators. The problem is a user can switch to another tab, trigger a postback and fail the validators on the first page, leaving things in a mess. What I want to be able to do is perform the validation on the first page as a user selects another tab, thus preventing them from moving to a new tab until the first page is valid. <ul> <li><a href="#tab1">Tab 1</a> </li> <li><a href="#tab2" onclick="return isValid();">Tab 2</a></li> <li><a href="#tab3" onclick="return isValid();">Tab 3</a></li> </ul> Where isValid needs to fire off the validators. Thanks!

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  • Ninject.ActivationException: Error activating IMainLicense

    - by Stefan Karlsson
    Im don't know fully how Ninject works thats wye i ask this question here to figure out whats wrong. If i create a empty constructor in ClaimsSecurityService it gets hit. This is my error: Error activating IMainLicense No matching bindings are available, and the type is not self-bindable. Activation path: 3) Injection of dependency IMainLicense into parameter mainLicenses of constructor of type ClaimsSecurityService 2) Injection of dependency ISecurityService into parameter securityService of constructor of type AccountController 1) Request for AccountController Stack: Ninject.KernelBase.Resolve(IRequest request) +474 Ninject.Planning.Targets.Target`1.GetValue(Type service, IContext parent) +153 Ninject.Planning.Targets.Target`1.ResolveWithin(IContext parent) +747 Ninject.Activation.Providers.StandardProvider.GetValue(IContext context, ITarget target) +269 Ninject.Activation.Providers.<>c__DisplayClass4.<Create>b__2(ITarget target) +69 System.Linq.WhereSelectArrayIterator`2.MoveNext() +66 System.Linq.Buffer`1..ctor(IEnumerable`1 source) +216 System.Linq.Enumerable.ToArray(IEnumerable`1 source) +77 Ninject.Activation.Providers.StandardProvider.Create(IContext context) +847 Ninject.Activation.Context.ResolveInternal(Object scope) +218 Ninject.Activation.Context.Resolve() +277 Ninject.<>c__DisplayClass15.<Resolve>b__f(IBinding binding) +86 System.Linq.WhereSelectEnumerableIterator`2.MoveNext() +145 System.Linq.Enumerable.SingleOrDefault(IEnumerable`1 source) +4059897 Ninject.Planning.Targets.Target`1.GetValue(Type service, IContext parent) +169 Ninject.Planning.Targets.Target`1.ResolveWithin(IContext parent) +747 Ninject.Activation.Providers.StandardProvider.GetValue(IContext context, ITarget target) +269 Ninject.Activation.Providers.<>c__DisplayClass4.<Create>b__2(ITarget target) +69 System.Linq.WhereSelectArrayIterator`2.MoveNext() +66 System.Linq.Buffer`1..ctor(IEnumerable`1 source) +216 System.Linq.Enumerable.ToArray(IEnumerable`1 source) +77 Ninject.Activation.Providers.StandardProvider.Create(IContext context) +847 Ninject.Activation.Context.ResolveInternal(Object scope) +218 Ninject.Activation.Context.Resolve() +277 Ninject.<>c__DisplayClass15.<Resolve>b__f(IBinding binding) +86 System.Linq.WhereSelectEnumerableIterator`2.MoveNext() +145 System.Linq.Enumerable.SingleOrDefault(IEnumerable`1 source) +4059897 Ninject.Web.Mvc.NinjectDependencyResolver.GetService(Type serviceType) +145 System.Web.Mvc.DefaultControllerActivator.Create(RequestContext requestContext, Type controllerType) +87 [InvalidOperationException: An error occurred when trying to create a controller of type 'Successful.Struct.Web.Controllers.AccountController'. Make sure that the controller has a parameterless public constructor.] System.Web.Mvc.DefaultControllerActivator.Create(RequestContext requestContext, Type controllerType) +247 System.Web.Mvc.DefaultControllerFactory.GetControllerInstance(RequestContext requestContext, Type controllerType) +438 System.Web.Mvc.DefaultControllerFactory.CreateController(RequestContext requestContext, String controllerName) +257 System.Web.Mvc.MvcHandler.ProcessRequestInit(HttpContextBase httpContext, IController& controller, IControllerFactory& factory) +326 System.Web.Mvc.MvcHandler.BeginProcessRequest(HttpContextBase httpContext, AsyncCallback callback, Object state) +157 System.Web.Mvc.MvcHandler.BeginProcessRequest(HttpContext httpContext, AsyncCallback callback, Object state) +88 System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.BeginProcessRequest(HttpContext context, AsyncCallback cb, Object extraData) +50 System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +301 System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +155 Account controller: public class AccountController : Controller { private readonly ISecurityService _securityService; public AccountController(ISecurityService securityService) { _securityService = securityService; } // // GET: /Account/Login [AllowAnonymous] public ActionResult Login(string returnUrl) { ViewBag.ReturnUrl = returnUrl; return View(); } } NinjectWebCommon: using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.Http; using System.Web.Http.Dependencies; using Microsoft.Web.Infrastructure.DynamicModuleHelper; using Ninject; using Ninject.Extensions.Conventions; using Ninject.Parameters; using Ninject.Syntax; using Ninject.Web.Common; using Successful.Struct.Web; [assembly: WebActivator.PreApplicationStartMethod(typeof(NinjectWebCommon), "Start")] [assembly: WebActivator.ApplicationShutdownMethodAttribute(typeof(NinjectWebCommon), "Stop")] namespace Successful.Struct.Web { public static class NinjectWebCommon { private static readonly Bootstrapper Bootstrapper = new Bootstrapper(); /// <summary> /// Starts the application /// </summary> public static void Start() { DynamicModuleUtility.RegisterModule(typeof(OnePerRequestHttpModule)); DynamicModuleUtility.RegisterModule(typeof(NinjectHttpModule)); Bootstrapper.Initialize(CreateKernel); } /// <summary> /// Stops the application. /// </summary> public static void Stop() { Bootstrapper.ShutDown(); } /// <summary> /// Creates the kernel that will manage your application. /// </summary> /// <returns>The created kernel.</returns> private static IKernel CreateKernel() { var kernel = new StandardKernel(); kernel.Bind<Func<IKernel>>().ToMethod(ctx => () => new Bootstrapper().Kernel); kernel.Bind<IHttpModule>().To<HttpApplicationInitializationHttpModule>(); kernel.Load("Successful*.dll"); kernel.Bind(x => x.FromAssembliesMatching("Successful*.dll") .SelectAllClasses() .BindAllInterfaces() ); GlobalConfiguration.Configuration.DependencyResolver = new NinjectResolver(kernel); RegisterServices(kernel); return kernel; } /// <summary> /// Load your modules or register your services here! /// </summary> /// <param name="kernel">The kernel.</param> private static void RegisterServices(IKernel kernel) { } } public class NinjectResolver : NinjectScope, IDependencyResolver { private readonly IKernel _kernel; public NinjectResolver(IKernel kernel) : base(kernel) { _kernel = kernel; } public IDependencyScope BeginScope() { return new NinjectScope(_kernel.BeginBlock()); } } public class NinjectScope : IDependencyScope { protected IResolutionRoot ResolutionRoot; public NinjectScope(IResolutionRoot kernel) { ResolutionRoot = kernel; } public object GetService(Type serviceType) { var request = ResolutionRoot.CreateRequest(serviceType, null, new Parameter[0], true, true); return ResolutionRoot.Resolve(request).SingleOrDefault(); } public IEnumerable<object> GetServices(Type serviceType) { var request = ResolutionRoot.CreateRequest(serviceType, null, new Parameter[0], true, true); return ResolutionRoot.Resolve(request).ToList(); } public void Dispose() { var disposable = (IDisposable)ResolutionRoot; if (disposable != null) disposable.Dispose(); ResolutionRoot = null; } } } ClaimsSecurityService: public class ClaimsSecurityService : ISecurityService { private const string AscClaimsIdType = "http://schemas.microsoft.com/accesscontrolservice/2010/07/claims/identityprovider"; private const string SuccessfulStructWebNamespace = "Successful.Struct.Web"; private readonly IMainLicense _mainLicenses; private readonly ICompany _companys; private readonly IAuthTokenService _authService; [Inject] public IApplicationContext ApplicationContext { get; set; } [Inject] public ILogger<LocationService> Logger { get; set; } public ClaimsSecurityService(IMainLicense mainLicenses, ICompany companys, IAuthTokenService authService) { _mainLicenses = mainLicenses; _companys = companys; _authService = authService; } }

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  • MVC 2 JScript Runtime Error: FormContext is null

    - by Kenny
    When loading a page in my MVC project, I am getting a JScript runtime error that origininates in the MicrosoftMvcValidation.js file saying that Sys.Mvc.FormContext is null or not an object. The page includes a standard "Add" form and a partial view that shows a list of data items. I have the references to the js files in the master page as follows. What could be causing this and how might I be able to fix it?

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  • How to view Session Variables in Visual Studio 2008 Debugger?

    - by davemackey
    Usually using Visual Studio's debugger is a breeze. Scanning through Locals quickly shows the values of variables, etc. However, I'm at a loss how to find out the values contained in session state variables? Can anyone give me a hand? Lets say I put a breakpoint right after: Session("first_name") = "Rob Roy" How do I view the value contained in Session("first_name") from locals?

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  • how to set jqgrid cell color at runtime

    - by anil
    Hi, i am populating a jqgrid from database and one of its columns is a color column like red, blue, etc. Can i set the cell color of this column based on the value coming from database at run time? how should i set formatter in this case? i tried like this but do not work var colorFormatter = function(cellvalue, options, rowObject) { var colorElementString = ''; return colorElementString; colModel: [ { name: 'GroupName', index: 'GroupName', width: 200, align: 'left' }, { name: 'Description', index: 'Description', width: 300, align: 'left' }, { name: 'Color', index: 'Color', width: 60, align: 'left', formatter: colorFormatter}],

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  • How to use custom masks in MaskedEditExtender?

    - by bastos.sergio
    Hello, I need to create a textbox which accepts 3 chars and must follow the following format 1st char - only numbers 2nd char - only upper case letters 3rd char - numbers and upper case letters (except zero) This is what I have so far, but it's not working <ajaxToolkit:MaskedEditExtender ID="MaskedEditExtender1" runat="server" Mask="9L9" TargetControlID="txtNUIPC3" PromptCharacter=""> </ajaxToolkit:MaskedEditExtender>

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  • MVC2 Controller is passed a null object as a parameter

    - by Steve Wright
    I am having an issue with a controller getting a null object as a parameter: [HttpGet] public ActionResult Login() { return View(); } [HttpPost] public ActionResult Login(LoginViewData userLogin) { Assert.IsNotNull(userLogin); // FAILS if (ModelState.IsValid) { } return View(userLogin); } The LoginViewData is being passed as null when the HttpPost is called: Using MvcContrib.FluentHtml: <h2>Login to your Account</h2> <div id="contact" class="rounded-10"> <%using (Html.BeginForm()) { %> <fieldset> <ol> <li> <%= this.TextBox(f=>f.UserLogin).Label("Name: ", "name") %> <%= Html.ValidationMessageFor(m => m.UserLogin) %> </li> <li> <%= this.Password(u => u.UserPassword).Label("Password:", "name") %> <%= Html.ValidationMessageFor(m => m.UserPassword) %> </li> <li> <%= this.CheckBox(f => f.RememberMe).LabelAfter("Remember Me")%> </li> <li> <label for="submit" class="name">&nbsp;</label> <%= this.SubmitButton("Login")%> </li> </ol> </fieldset> <% } %> <p>If you forgot your user name or password, please use the Password Retrieval Form.</p> </div> The view inherits from MvcContrib.FluentHtml.ModelViewPage and is strongly typed against the LoginViewData object: public class LoginViewData { [Required] [DisplayName("User Login")] public string UserLogin { get; set; } [Required] [DisplayName("Password")] public string UserPassword { get; set; } [DisplayName("Remember Me?")] public bool RememberMe { get; set; } } Any ideas on why this would be happening? UPDATE I rebuilt the web project from scratch and that fixed it. I am still concerned why it happened.

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  • Ajax actionlinks straight from a DropDownList

    - by Ingó Vals
    I've got a small linkbox on the side of my page that is rendered as a PartialView. In it I have a dropDownlist the should change the routing value of the links in the box but I'm having difficulty doing so. My current plan is to call on something similar to a Ajax.ActionLink to reload the partial view into the with a different parameter based on the value of the dropdown selection. However I'm having multiple problems with this, for example as a novice in using dropdownlists I have no idea how to call on the selected value for example. <%= Html.DropDownList("DropDownList1", new SelectList(Model, "ID", "Name"), "--Pick--", new { AutoPostBack = "true", onchange = "maybe something here" })%> I tried putting in the sys.mvc.AsyncHyperlink into the onchange attribute and that worked except I don't know how to put in the route value for it. Sys.Mvc.AsyncHyperlink.handleClick(this, new Sys.UI.DomEvent(event), { insertionMode: Sys.Mvc.InsertionMode.replace, updateTargetId: 'SmallMenu' } Is there no straight Ajax drop down list that fires events onchange? Any way this is possible? I have later in the Partial view the Ajax actionlinks but they need to have their id's updated by the value in the dropdownlist and if I could do that somehow else I would appreciate a suggestion.

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  • jQuery, insertBefore, validation, Placement of error message

    - by Steve
    I am using insertBefore under errorplacement to add validation messages, each one below each other as I want the order of the messages to go from top to bottom. I am using a hidden input at the very bottom of a parent element in order to supply an element for the insertBefore argument. Is there a way to insert from the bottom without using the dummy hidden element? If I use absolute positioning, there is a possibility for white space, for example 3 stacked messages, the middle one missing since there is no collapsing with absolute positioning.

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  • Hide editor-label for public property when calling EditorFor(...)?

    - by FreshCode
    When calling Html.EditorFor(m => m), where m is a public class with public properties, a hidden input and a label are displayed for properties with the [HiddenInput] attribute. How can I hide the label without making it private or creating an editor template? Example public class User { [HiddenInput] public Guid ID { get; set; } // should not be displayed in editor template public string Name { get; set; } // should be editable } Undesired result for ID property by EditorFor(...) with label <div class="editor-label"> <label for="ID">ID</label> <!-- Why is this here? --> </div> <div class="editor-field"> <input id="ID" name="ID" type="hidden" value=""> </div>

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  • Invalid length for a Base-64 char array.

    - by Code Sherpa
    As the title says, I am getting: Invalid length for a Base-64 char array. I have read about this problem on here and it seems that the suggestion is to store ViewState in SQL if it is large. I am using a wizard with a good deal of data collection so chances are my ViewSate is large. But, before I turn to the "store-in-DB" solution, maybe somebody can take a look and tell me if I have other options? I construct the email for delivery using the below method: public void SendEmailAddressVerificationEmail(string userName, string to) { string msg = "Please click on the link below or paste it into a browser to verify your email account.<BR><BR>" + "<a href=\"" + _configuration.RootURL + "Accounts/VerifyEmail.aspx?a=" + userName.Encrypt("verify") + "\">" + _configuration.RootURL + "Accounts/VerifyEmail.aspx?a=" + userName.Encrypt("verify") + "</a>"; SendEmail(to, "", "", "Account created! Email verification required.", msg); } The Encrypt method looks like this: public static string Encrypt(string clearText, string Password) { byte[] clearBytes = System.Text.Encoding.Unicode.GetBytes(clearText); PasswordDeriveBytes pdb = new PasswordDeriveBytes(Password, new byte[] { 0x49, 0x76, 0x61, 0x6e, 0x20, 0x4d, 0x65, 0x64, 0x76, 0x65, 0x64, 0x65, 0x76 }); byte[] encryptedData = Encrypt(clearBytes, pdb.GetBytes(32), pdb.GetBytes(16)); return Convert.ToBase64String(encryptedData); } On the receiving end, the VerifyEmail.aspx.cs page has the line: string username = Cryptography.Decrypt(_webContext.UserNameToVerify, "verify"); And the decrypt method looks like: public static string Decrypt(string cipherText, string password) { **// THE ERROR IS THROWN HERE!!** byte[] cipherBytes = Convert.FromBase64String(cipherText); Can this error be remedied with a code fix or must I store ViewState in the database? Thanks in advance.

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  • jQuery not loading on Master Page when the Content Page is in a child folder.

    - by ProfK
    I have a site where I am trying to implement a jQuery UI based MessageBox in my master page. Content pages are arranged accoring to business area folders, i.e. '~/Branding/Contracts.aspx'. I find that when I load such a content page, jQuery, which is referenced in the master page as below, does not load. I assume that this is because the browser is requesting 'Branding/Scripts/jQuery '. What can I do about this? I don't have the 'root' operator in a plain 'script' tag. <script src="/Scripts/jquery-1.3.2.js" type="text/javascript"></script> <script src="Scripts/jquery-1.3.2.js" type="text/javascript"></script> <script src="Scripts/jquery-ui-1.7.2.custom.min.js" type="text/javascript"></script>

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  • How to call SQL Function with multiple parameters from C# web page

    - by Marshall
    I have an MS SQL function that is called with the following syntax: SELECT Field1, COUNT(*) AS RecordCount FROM GetDecileTable('WHERE ClientID = 7 AND LocationName = ''Default'' ', 10) The first parameter passes a specific WHERE clause that is used by the function for one of the internal queries. When I call this function in the front-end C# page, I need to send parameter values for the individual fields inside of the WHERE clause (in this example, both the ClientID & LocationName fields) The current C# code looks like this: String SQLText = "SELECT Field1, COUNT(*) AS RecordCount FROM GetDecileTable('WHERE ClientID = @ClientID AND LocationName = @LocationName ',10)"; SqlCommand Cmd = new SqlCommand(SQLText, SqlConnection); Cmd.Parameters.Add("@ClientID", SqlDbType.Int).Value = 7; // Insert real ClientID Cmd.Parameters.Add("@LocationName", SqlDbType.NVarChar(20)).Value = "Default"; // Real code uses Location Name from user input SqlDataReader reader = Cmd.ExecuteReader(); When I do this, I get the following code from SQL profiler: exec sp_executesql N'SELECT Field1, COUNT(*) as RecordCount FROM GetDecileTable (''WHERE ClientID = @ClientID AND LocationName = @LocationName '',10)', N'@ClientID int,@LocationID nvarchar(20)', @ClientID=7,@LocationName=N'Default' When this executes, SQL throws an error that it cannot parse past the first mention of @ClientID stating that the Scalar Variable @ClientID must be defined. If I modify the code to declare the variables first (see below), then I receive an error at the second mention of @ClientID that the variable already exists. exec sp_executesql N'DECLARE @ClientID int; DECLARE @LocationName nvarchar(20); SELECT Field1, COUNT(*) as RecordCount FROM GetDecileTable (''WHERE ClientID = @ClientID AND LocationName = @LocationName '',10)', N'@ClientID int,@LocationName nvarchar(20)', @ClientID=7,@LocationName=N'Default' I know that this method of adding parameters and calling SQL code from C# works well when I am selecting data from tables, but I am not sure how to embed parameters inside of the ' quote marks for the embedded WHERE clause being passed to the function. Any ideas?

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  • SOAP-ERROR: Encoding: object hasn’t ‘website_ids’ property

    - by Shane van Wyk
    i am struggling to get the products listed/called from magneto via SOAP. I am using the following statement please help, tell me what i am doing wrong. I am sending down the username and apikey vi the “LogInSession.Session()” method, it just keeps the connection info. string sessionId = LogInSession.Session(); MagentoSOAPv2.MagentoService ms = new MagentoSOAPv2.MagentoService(); var productList = ms.catalogProductList(sessionId, new MagentoSOAPv2.filters(), storeView: "1"); foreach (var pi in productList) { Response.Write("category_ids" + pi.category_ids + "<br/>"); Response.Write("name" + pi.name + "<br/>"); Response.Write("product_id" + pi.product_id + "<br/>"); Response.Write("set" + pi.set + "<br/>"); Response.Write("sku" + pi.sku + "<br/>"); Response.Write("type" + pi.type + "<br/>"); Response.Write("website_ids" + pi.website_ids + "<br/>"); }

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  • Linq filtering an IQueryable<T> (System.Data.Linq.DataQuery) object by a List<T> (System.Collection.

    - by Klaptrap
    My IQueryable line is: // find all timesheets for this period - from db so System.Data.Linq.DataQuery var timesheets = _timesheetRepository.FindByPeriod(dte1, dte2); My List line is: // get my team from AD - from active directory so System.Collection.Generic.List var adUsers = _adUserRepository.GetMyTeam(User.Identity.Name); I wish to only show timesheets for those users in the timesheet collection that are present in the user collection. If I use a standard c# expression such as: var teamsheets = from t in timesheets join user in adUsers on t.User1.username equals user.fullname select t; I get the error "An IQueryable that returns a self-referencing Constant expression is not supported" Any recommendations?

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  • How can I create a generaic ValidationAttribute in C#?

    - by sabbour
    I'm trying to create a UniqueAttribute using the System.ComponentModel.DataAnnotations.ValidationAttribute I want this to be generic as in I could pass the Linq DataContext, the table name, the field and validate if the incoming value is unique or not. Here is a non-compilable code fragment that I'm stuck at right now: using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.ComponentModel.DataAnnotations; using System.Data.Linq; using System.ComponentModel; namespace LinkDev.Innovation.Miscellaneous.Validation.Attributes { public class UniqueAttribute : ValidationAttribute { public string Field { get; set; } public override bool IsValid(object value) { string str = (string)value; if (String.IsNullOrEmpty(str)) return true; // this is where I'm stuck return (!Table.Where(entity => entity.Field.Equals(str)).Any()); } } } I should be using this in my model as follows: [Required] [StringLength(10)] [Unique(new DataContext(),"Groups","name")] public string name { get; set; }

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  • Problem converting a byte array into datatable.

    - by kranthi
    Hi, In my aspx page I have a HTML inputfile type which allows user to browse for a spreadsheet.Once the user choses the file to upload I want to read the content of the spreadsheet and store the content into mysql database table. I am using the following code to read the content of the uploaded file and convert it into a datatable in order into insert it into database table. if (filMyFile.PostedFile != null) { // Get a reference to PostedFile object HttpPostedFile myFile = filMyFile.PostedFile; // Get size of uploaded file int nFileLen = myFile.ContentLength; // make sure the size of the file is > 0 if (nFileLen > 0) { // Allocate a buffer for reading of the file byte[] myData = new byte[nFileLen]; // Read uploaded file from the Stream myFile.InputStream.Read(myData, 0, nFileLen); DataTable dt = new DataTable(); MemoryStream st = new MemoryStream(myData); st.Position = 0; System.Runtime.Serialization.IFormatter formatter = new System.Runtime.Serialization.Formatters.Binary.BinaryFormatter(); dt=(DataTable)formatter.Deserialize(st); } } But I am getting the following error when I am trying to deserialise the byte array into datatable. Binary stream '0' does not contain a valid BinaryHeader. Possible causes are invalid stream or object version change between serialization and deserialization. Could someone please tell me what am I doing wrong? I've also tried converting the bytearray into string ,then converting the string back to byte array and convert into datatable.That is also throwing the same error. Thanks.

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  • How to build library from source (ajax control toolkit)

    - by maxp
    The latest version of Microsoft's ajax library is only available as source code (not a dll). It can be downloaded here: http://ajax.codeplex.com/sourcecontrol/network/Show?projectName=Ajax&changeSetId=49157 Does anyone know how i can actually go about building this into a library like the older (buggy) version? All of the sln files throw errors in visual studio, and after trying to copy the contents of Server\AjaxControlToolkit into a class library im now getting the error Could not find any resources appropriate for the specified culture or the neutral culture.

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  • MVC2 DataAnnotations validation with inheritance

    - by bhiku
    Hi, I have a .NET 2.0 class the properties of which are marked virtual.I need to use the class as a model in a MVC2 application. So, I have created a .NET 3.5 class inheriting from the .NET 2.0 class and added the DataAnnotations attributes to the overriden properties in the new class. A snippet of what I have done is below // .NET 2.0 class public class Customer { private string _firstName = ""; public virtual string FirstName { get { return _firstName; } set { _firstName = value; } } } // .NET 3.5 class public class MVCCustomer : Customer { [Required(ErrorMessage="Firstname is required")] public override string FirstName { get { return base.FirstName; } set { base.FirstName = value; } } } I have used the class as the model for a MVC2 view using the HtmlFor helpers. Serverside validation works correctly but the client side validation does not. Specifically the validation error is not displayed on the page. What am I missing, or is it only possible to do this using buddy classes. Thanks.

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  • Store and retrieve images from file system instead of database

    - by Karsten
    Hi I need a place to store images. My first thought was to use the database, but many seems to recommend using the filesystem. This seems to fit my case, but how do I implement it? The filenames need to be unique, how to do that. Should I use a guid? How to retrieve the files, should I go directly to the database using the filename, make a aspx page and passing either filename or primary key as a querystring and then read the file. What about client side caching, is that enabled when using a page like image.aspx?id=123 ? How do I delete the files, when the associated record is deleted? I guess there are many other things that I still haven't thought about. Links, samples and guidelines are very welcome!

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