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  • ASP.NET - Extend gridview to allow filtering, sorting, paging, etc...

    - by Zach
    I have seen threads on many sites regarding extending the gridview control so obviously this will be a duplicate. But I haven't found any that truly extend the control to the extent that you could have custom sorting (with header images), filtering by putting drop downs or textboxes in header columns (on a column by column basis) and custom paging (one that doesn't return all records but just returns the ones requested for the given page). Are there any good tutorials that show the inner-workings of the gridview and how to override the proper functions? I've seen several snippets here and there but none seem to really work and explain things well. Any links would be appreciated. Thanks!

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  • How to retrieve value from DropDownListFor html helper in ASP.NET MVC2?

    - by Eedoh
    Hello I know there was few similar questions here about DropDownListFor, but neither helped me... I use Entity Framework as ORM in my project. There's EF model called "Stete". Stete has Foreign on EF model called "Drustva" Now I'm trying to make a form for editing the data, for Stete model. I managed to display everything, including Stete.Drustva.Naziv property, but I can't get this last property in my handler method [HttpPost]. It always return 0, no matter what I select in drop down list. Here's the code: DrustvaController: public static IEnumerable<SelectListItem> DrustvaToSelectListItemsById(this KnjigaStetnikaEntities pEntities, int Id) { IEnumerable<Drustva> drustva = (from d in pEntities.Drustva select d).ToList(); return drustva.OrderBy(drustvo => drustvo.Naziv).Select(drustvo => new SelectListItem { Text = drustvo.Naziv, Value = drustvo.Id.ToString(), Selected = (drustvo.Id == Id)? true : false }); } SteteController: private IEnumerable<SelectListItem> privremenaListaDrustava(int Id) { using (var ctx = new KnjigaStetnikaEntities()) { return ctx.DrustvaToSelectListItemsById(Id); } } public ActionResult IzmijeniPodatkeStete(Int32 pBrojStete) { PretragaStetaModel psm = new PretragaStetaModel(); ViewData["drustva"] = privremenaListaDrustava(psm.VratiStetuPoBrojuStete(pBrojStete).Drustva.Id); ViewData.Model = new Models.Stete(); return View("EditView", (Stete.Models.Stete)psm.GetSteta(pBrojStete)); } EditView: <div class="editor-label"> <%: Html.Label("Društvo") %> </div> <div class="editor-field"> <%: Html.DropDownListFor(m => m.Drustva.Naziv, ViewData["drustva"] as IEnumerable<SelectListItem>) %> <%: Html.ValidationMessageFor(model => model.FKDrustvo) %> </div> I am sorry for not translating names of the objects into english, but they hardly have appropriate translation. If necessary, I can try creating similar example...

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  • ASP.NET MVC2 RC : How to intercept or trigger client-side validation before ajax request?

    - by jacko
    I have a username textbox on a form, that has a few validation rules applied to it via the DataAnnotation attributes: [Required(ErrorMessage = "FTP login is required")] [StringLength(15, ErrorMessage = "Must be 15 characters or fewer")] [RegularExpression(@"[a-zA-Z0-9]*", ErrorMessage = "Alpha-numeric characters only")] public string FtpLogin { get; set; } I also have a button next to this text box, that fires off a jQuery ajax request that checks for the existence of the username as follows: <button onclick="check(this);return false;" id="FtpLoginCheck" name="FtpLoginCheck">Available?</button> I'm looking for a way of tieing the two together, so that the client-side validation is performed before the call to the "check(this)" in the onclick event. Edit: To be more clear, I need a way to inspect or trigger the client-side validation result of the textbox, when I click the unrelated button beside it. Edit: I now have the button JS checking for $("form").validate().invalid, but not displaying the usual validation messages. Almost there Any ideas?

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  • ASP.NET MVC2 - Does Html.EnableClientValidation() work on the nested data model?

    - by warmcold
    I have seen the client side validation examples and videos on internet by using Html.EnableClientValidation(). But all target on the simple data model. Does the Html.EnableClientValidation() work on the nested data model like below? public class Person { public Name Name { get; set; } public string Gender { get; set; } } public class Name { public string First { get; set; } public string Last { get; set; } }

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  • Why are ASP.Net MVC2 area controller actions callable without including the area in the url path?

    - by Nathan Ridley
    I've just installed Visual Studio 2010 and have created a new MVC2 project so that I can learn about the changes and updates and have discovered an issue with areas that I'm not sure what to make of. I created a new EMPTY MVC2 project I right clicked the project and, from the context menu, added a new area called "Test" In the new test area, I added a controller called "Data". The code is: public class DataController : Controller { // // GET: /Test/Data/ public ActionResult Index() { Response.Write("Hi"); return new EmptyResult(); } } Now, I compile and call this address: http://localhost/mytest/test/data and get the output: Hi All good. Now I call this: http://localhost/mytest/data and get the same response! I thought routing was supposed to take care of this? Am I overlooking something? Or has the default project setup for MVC2 overlooked something?

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  • ASP.Net: Writing chunks of file..HTTP File upload with resume..

    - by Manish
    Please refer to question: http://stackoverflow.com/questions/2062852/resume-in-upload-file-control Now to find a solution for the above question, I want to work on it and develop a user control which can resume a HTTP File Upload process. For this, I'm going to create a temporary file on server until the upload is complete. Once the uploading is done completely then will just save it to the desired location. The procedure I have thought of is: Create a temporary file with a unique name (may be GUID) on the server. Read a chunk of file and append it to this temp file on the server. Continue step 1 to 3 until EOF is reached. Now if the connection is lost or user clicks on pause button, the writing of file is stopped and the temporary file is not deleted. Clicking on resume again or uploading the same file again will check on the server if the file exists and user whether to resume or to overwrite. (Not sure how to check if it's the same file. Also, how to step sending the chunks from client to server.) Clicking on resume will start from where it is required to be uploaded and will append that to the file on the server. (Again not sure how to do this.) Questions: Are these steps correct to achieve the goal? Or need some modifications? I'm not sure how to implement all these steps. :-( Need ideas, links... Any help appreciated...

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  • How to make ASP.NET authentication persist the Url Fragment when redirecting to the login page?

    - by estourodepilha.com
    After I inserted the configuration below in my Web.Config <authentication mode="Forms"> <forms name="appNameAuth" path="/" loginUrl="login.aspx" protection="All" timeout="30"> <credentials passwordFormat="Clear"> <user name="user" password="password" /> </credentials> </forms> </authentication> <authorization> <deny users="?" /> </authorization> All requests to Menu.aspx#fragment are redirected to login.aspx?ReturnUrl=/Menu.aspx and I expected it to be redirected to login.aspx?ReturnUrl=/Menu.aspx#fragment How to achieve the desired behavior?

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  • ASP.NET MVC 2: How do I make the Ajax.Form to fire the Client Side Validation with Data Annotation?

    - by Methee
    Here is the code I have so far: <% Html.EnableClientValidation(); %> <% using (Ajax.BeginForm("Address", "Accounts", FormMethod.Post, new AjaxOptions(){}, new { id="dialog-form"} )){ %> <div> <label for="address">Address Name:</label> </div> <div> <%= Html.TextBoxFor(m => m.Name)%> <div> <%= Html.ValidationMessageFor(m => m.Name)%> </div> </div> <input type="submit" value="OK" /> <% } %> When I click submit, It does the validation on the server side, I kinda like it to validate on the Client instead of taking a trip to the server right away.

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  • Can you precompile and merge part of an ASP.NET website and then continue development?

    - by michielvoo
    A big part of the web site is precompiled and merged, since it's almost never going to change. The precompiled bits can be replaced in case of updates to the original. I want to continue development of new pages, but when I browse to a new page I get the following error: The file '/Website/Test/Default.aspx' has not been pre-compiled, and cannot be requested. Is there any way around this? Edit: If I remove the precompileApp.config file I get the contents of the marker files when I browse them: This is a marker file generated by the precompilation tool, and should not be deleted!

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  • VB.NET: How to know time for which system is idle?

    - by Daredev
    I'm making an application in which I'm implementing auto-monitor turn off when system is idle, i.e. when user is not interacting with the system. I found a link: http://www.codeproject.com/KB/system/SystemIdleTimerComponent.aspx it does provides the componenent to know when system is idle. But when I include: Public WM_SYSCOMMAND As Integer = &H112 Public SC_MONITORPOWER As Integer = &Hf170 <DllImport("user32.dll")> _ Private Shared Function SendMessage(hWnd As Integer, hMsg As Integer, wParam As Integer, lParam As Integer) As Integer End Function Private Sub button1_Click(sender As Object, e As System.EventArgs) SendMessage(Me.Handle.ToInt32(), WM_SYSCOMMAND, SC_MONITORPOWER, 2) End Sub It shows this error: Cross-thread operation not valid: Control 'Form1' accessed from a thread other than the thread it was created on.

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  • How to bind form collection back to custom model object that uses 2 custom objects in asp.net mvc?

    - by baijajusav
    What I'm trying to do is rather basic, but I might have my facts mixed up. I have a details page that has a custom class as it's Model. The custom class uses 2 custom objects with yet another custom object a property of one of the 2. The details page outputs a fair amount of information, but allows the user to post a comment. When the user clicks the post button, the page gets posted to a Details action that looks something like this: [AcceptVerbs(HttpVerbs.Post)] public ActionResult Details(VideoDetailModel vidAndComment) { ....} The only fields on the form that is posted are CommentText and VideoId. Here is what the VideoDetailModel looks like. public class VideoDetailModel { public VideoDetailModel() { Video = new VideoDTO(); Comment = new CommentDTO(); } public VideoDetailModel(VideoDTO vid) { Video = vid; Comment = new CommentDTO(); } public VideoDTO Video { get; set; } public CommentDTO Comment { get; set; } } VideoDTO has a few properties, but the ones I need are VideoId. CommentDTO's pertinent properties include CommentText (which is posting correctly) and a UserDTO object that contains a userId property. Everything other than the CommentText value is not being posted. I also have the following line on the ascx page, but the model value never gets posted to the controller. Html.Hidden("Model.Video.VideoId", Model.Video.VideoId); I'm really not sure what I'm missing here. I suppose if I added more form fields for the properties I need, they would get posted, but I only need 1 form entry field for the CommentText. If I could get the same Model objects value that were sent to the page to post with the page, that would help. I'll be happy to make any clarifications needed here. I'm just at loss as to what's going on.

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  • How do I subscribe to a MSMQ queue but only "peek" the message in .Net?

    - by lemkepf
    We have a MSMQ Queue setup that receives messages and is processed by an application. We'd like to have another process subscribe to the Queue and just read the message and log it's contents. I have this in place already, the problem is it's constantly peeking the queue. CPU on the server when this is running is around 40%. The mqsvc.exe runs at 30% and this app runs at 10%. I'd rather have something that just waits for a message to come in, get's notified of it, and then logs it without constantly pooling the server. Dim lastid As String Dim objQueue As MessageQueue Dim strQueueName As String Public Sub Main() objQueue = New MessageQueue(strQueueName, QueueAccessMode.SendAndReceive) Dim propertyFilter As New MessagePropertyFilter propertyFilter.ArrivedTime = True propertyFilter.Body = True propertyFilter.Id = True propertyFilter.LookupId = True objQueue.MessageReadPropertyFilter = propertyFilter objQueue.Formatter = New ActiveXMessageFormatter AddHandler objQueue.PeekCompleted, AddressOf MessageFound objQueue.BeginPeek() end main Public Sub MessageFound(ByVal s As Object, ByVal args As PeekCompletedEventArgs) Dim oQueue As MessageQueue Dim oMessage As Message ' Retrieve the queue from which the message originated oQueue = CType(s, MessageQueue) oMessage = oQueue.EndPeek(args.AsyncResult) If oMessage.LookupId <> lastid Then ' Process the message here lastid = oMessage.LookupId ' let's write it out log.write(oMessage) End If objQueue.BeginPeek() End Sub

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  • ASP.NET MVC2: Can you get ModelMetadata.ContainerType from within a collection?

    - by CodeSponge
    I'm trying to call DisplayFor and DisplayForModel to iterate an IEnumerable< with various element types from within a view. I have Templates defined for each element/Model type. What I would like to do is check the ViewData.ModelMetadata.ContainerType from within the Template so that Template can determine if it was called as part of a collection. A simple example: Index1.aspx: To render a collection of Foos. <%@ Page Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage<IEnumerable<Foo>>" %> <asp:Content ContentPlaceHolderID="MainPlaceHolder" runat="server"> <ul><%:Html.DisplayForModel()%></ul> </asp:Content> Index2.aspx: To render a Foo. <%@ Page Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage<Foo>" %> <asp:Content ContentPlaceHolderID="MainPlaceHolder" runat="server"> <%:Html.DisplayForModel()%> </asp:Content> Shared\DisplayTemplates\Foo.ascx: A context aware Template for Foo. <%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl<Foo>" %> <% var tag = typeof(IEnumerable).IsAssignableFrom(ViewData.ModelMetaData.ContainerType) ? "li" : "div"; %> <<%:tag%>><%:Model.Name%></<%:tag%>> The problem with this example is that ViewData.ModelMetaData.ContainerType is null in the Template when resolved though Index1.aspx. From what I've read on Brad Wilson post and others it has to do with the use of IEnumerable and its being an interface. Is there a way to insure that the ContainerType is set? Perhaps by creating a ModelMetadataProviders? I looked into that breifly but it appears the ContainerType value is determined before and then passed to the Provider. Any suggestions would be appreciated.

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  • How to handle relative paths in ASP.NET MVC?

    - by AngryHacker
    I have a master page which references a style in the following manner: <link rel="stylesheet" type="text/css" href="../../Content/Style.css" /> All my pages inherit from this master page. And this works well when the URL is http://www.domain.com/home/details/5, however the URL is http://www.domain.com/home/create, then, of course, Style.css cannot be found because `../../Content/Style.css' resolves to a directory one higher where there is nothing there. How is this typically handled?

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  • ASP.Net MVC2 Client and Server Validation sharing the same code - is it possible?

    - by RemotecUk
    With the excellent XVal by Steve Sanderson, it is possible to tell the client side validation to post the value being validated to the server using jquery. A method on the server then uses the same server side code you use for your server side validation, and returns simply a true or false to determine if the field is valid. The advantage of this method is that you write your complex validation logic once in C# code and then put some JQuery plumbing in to tell your client page where to go to access your server validation. I have been reading some blogs on MVC2 but no one seems to mention this functionality. Is it possible to tell the Microsoft MVC validation javascript to call a url validate data? Or do you have to write your own client side validation routines. I should note that using the xVal method a custom validation to say if an email address is in use or not can be run from the client via a JQuery post which accesses the server side validation logic.

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  • ASP.NET MVC Users unable to login after password change, and being locked out.

    - by Russell Kay
    All, I have a website that is in use and has several users, using the MySqlMembershipProvider. We have had a few users that have been locked out (for some reason) and recently I unlocked them and reset the passwords, using the MembershipUser.UnlockUser and MembershipUser.ResetPassword methods. Now they are definitely marked in the database as Unlocked and the password has been reset, but they still cannot log in. Does anyone have any ideas why this might happen?

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  • ASP.NET MVC - Data Annotations - Why add a default RequiredAttribute?

    - by redsquare
    Can anyone explain why it is assumed that a non nullable type property should always have a RequiredAttribue? I am trying to write a label helper that will auto append * or change the css class so that I can indicate to the user that the field is required. However when querying the metadata the non nullable properties end up with a required attribute. MVC Source Code: protected override IEnumerable<ModelValidator> GetValidators( ModelMetadata metadata, ControllerContext context, IEnumerable<Attribute> attributes) { _adaptersLock.EnterReadLock(); try { List<ModelValidator> results = new List<ModelValidator>(); if (metadata.IsRequired && !attributes.Any(a => a is RequiredAttribute)) { //******* Why Do this? attributes = attributes.Concat(new[] { new RequiredAttribute() }); } foreach (ValidationAttribute attribute in attributes.OfType<ValidationAttribute>()) { DataAnnotationsModelValidationFactory factory; if (!_adapters.TryGetValue(attribute.GetType(), out factory)) factory = _defaultFactory; results.Add(factory(metadata, context, attribute)); } return results; } finally { _adaptersLock.ExitReadLock(); } }

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  • Asp.net HttpWebResponse - how can I not depend on WebException for flow control?

    - by Campos
    I need to check whether the request will return a 500 Server Internal Error or not (so getting the error is expected). I'm doing this: HttpWebRequest request = WebRequest.Create(url) as HttpWebRequest; request.Method = "GET"; HttpWebResponse response = request.GetResponse() as HttpWebResponse; if (response.StatusCode == HttpStatusCode.OK) return true; else return false; But when I get the 500 Internal Server Error, a WebException is thrown, and I don't want to depend on it to control the application flow - how can this be done?

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  • A good way in .NET Winforms to have user entered time frame?

    - by Ben
    Hi, Does anyone know of a good way to have a user enter an amount of time (hours and minutes) using winforms controls? At the moment I have two numeric up downs, one for time and one for minutes that I then parse to create a timespan. The only other idea I have is a text box that a user can enter a "00:00" time in, and validate the input. Both of these ways seem a bit bad (in UI terms) though. Any ideas? Thanks

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