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  • MVVM Light with ASP.Net MVC ?

    - by Hasan
    Hello, I'm a big fan of MVVM Light and I use it in my WPF Application. It works Greeeeat. I have a new project in asp.net mvc. And I'm wondering : Is anyone already tried to use mvvm light and asp.net mvc ? I know that some components will obviously not work but maybe, someone has achieved to do a better job with it. Thanks for your feedback :) Hasan

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  • An Unusual UpdatePanel

    - by João Angelo
    The code you are about to see was mostly to prove a point, to myself, and probably has limited applicability. Nonetheless, in the remote possibility this is useful to someone here it goes… So this is a control that acts like a normal UpdatePanel where all child controls are registered as postback triggers except for a single control specified by the TriggerControlID property. You could basically achieve the same thing by registering all controls as postback triggers in the regular UpdatePanel. However with this, that process is performed automatically. Finally, here is the code: public sealed class SingleAsyncTriggerUpdatePanel : WebControl, INamingContainer { public string TriggerControlID { get; set; } [TemplateInstance(TemplateInstance.Single)] [PersistenceMode(PersistenceMode.InnerProperty)] public ITemplate ContentTemplate { get; set; } public override ControlCollection Controls { get { this.EnsureChildControls(); return base.Controls; } } protected override void CreateChildControls() { if (string.IsNullOrWhiteSpace(this.TriggerControlID)) throw new InvalidOperationException( "The TriggerControlId property must be set."); this.Controls.Clear(); var updatePanel = new UpdatePanel() { ID = string.Concat(this.ID, "InnerUpdatePanel"), ChildrenAsTriggers = false, UpdateMode = UpdatePanelUpdateMode.Conditional, ContentTemplate = this.ContentTemplate }; updatePanel.Triggers.Add(new SingleControlAsyncUpdatePanelTrigger { ControlID = this.TriggerControlID }); this.Controls.Add(updatePanel); } } internal sealed class SingleControlAsyncUpdatePanelTrigger : UpdatePanelControlTrigger { private Control target; private ScriptManager scriptManager; public Control Target { get { if (this.target == null) { this.target = this.FindTargetControl(true); } return this.target; } } public ScriptManager ScriptManager { get { if (this.scriptManager == null) { var page = base.Owner.Page; if (page != null) { this.scriptManager = ScriptManager.GetCurrent(page); } } return this.scriptManager; } } protected override bool HasTriggered() { string asyncPostBackSourceElementID = this.ScriptManager.AsyncPostBackSourceElementID; if (asyncPostBackSourceElementID == this.Target.UniqueID) return true; return asyncPostBackSourceElementID.StartsWith( string.Concat(this.target.UniqueID, "$"), StringComparison.Ordinal); } protected override void Initialize() { base.Initialize(); foreach (Control control in FlattenControlHierarchy(this.Owner.Controls)) { if (control == this.Target) continue; bool isApplicableControl = false; isApplicableControl |= control is INamingContainer; isApplicableControl |= control is IPostBackDataHandler; isApplicableControl |= control is IPostBackEventHandler; if (isApplicableControl) { this.ScriptManager.RegisterPostBackControl(control); } } } private static IEnumerable<Control> FlattenControlHierarchy( ControlCollection collection) { foreach (Control control in collection) { yield return control; if (control.Controls.Count > 0) { foreach (Control child in FlattenControlHierarchy(control.Controls)) { yield return child; } } } } } You can use it like this, meaning that only the B2 button will trigger an async postback: <cc:SingleAsyncTriggerUpdatePanel ID="Test" runat="server" TriggerControlID="B2"> <ContentTemplate> <asp:Button ID="B1" Text="B1" runat="server" OnClick="Button_Click" /> <asp:Button ID="B2" Text="B2" runat="server" OnClick="Button_Click" /> <asp:Button ID="B3" Text="B3" runat="server" OnClick="Button_Click" /> <asp:Label ID="LInner" Text="LInner" runat="server" /> </ContentTemplate> </cc:SingleAsyncTriggerUpdatePanel>

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  • ASP.NET MVC 2 - ViewModel Prefix

    - by Cosmo
    I want to use RenderPartial twice in my view with different models associated. The problem is that some properties are present in both models (nickname, password). They have no prefix, so even the id's or names are equal in the output. Now, if I have model errors for nickname or password, both fields get highlighted. Main View: <div> <% Html.RenderPartial("Register", Model.RegisterModel); %> </div> <div> <% Html.RenderPartial("Login", Model.LoginModel); %> </div> Login PartialView: <% using (Html.BeginForm("Login", "Member")) { %> <fieldset> <legend>Login</legend> <p> <%= Html.LabelFor(x => x.Nickname) %> <%= Html.TextBoxFor(x => x.Nickname) %> </p> <p> <%= Html.LabelFor(x => x.Password) %> <%= Html.PasswordFor(x => x.Password) %> </p> <input type="submit" value="Login" /> </fieldset> <% } % Register PartialView: <% using (Html.BeginForm("Register", "Member")) { %> <fieldset> <legend>Register</legend> <p> <%= Html.LabelFor(x => x.Nickname) %> <%= Html.TextBoxFor(x => x.Nickname) %> </p> <p> <%= Html.LabelFor(x => x.Email) %> <%= Html.TextBoxFor(x => x.Email) %> </p> <p> <%= Html.LabelFor(x => x.Password) %> <%= Html.PasswordFor(x => x.Password) %> </p> <p> <%= Html.LabelFor(x => x.PasswordRepeat) %> <%= Html.PasswordFor(x => x.PasswordRepeat) %> </p> <input type="submit" value="Register" /> </fieldset> <% } % How can I change this?

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  • Altering the ASP.NET MVC 2 ActionResult on HTTP post

    - by Inge Henriksen
    I want to do some processing on a attribute before returning the view. If I set the appModel.Markup returned in the HttpPost ActionResult method below to "modified" it still says "original" on the form. Why cant I modify my attribute in a HttpGet ActionResult method? [HttpGet] public ActionResult Index() { return View(new MyModel { Markup = "original" }); } [HttpPost] public ActionResult Index(MyModel appModel) { return View(new MyModel { Markup = "modified" }); }

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  • Asp.Net MVC ActionLink

    - by Pino
    Can anyone explain why the following happens? And how to resolve, Visual Studio 2010 and MVC2 <%= Html.ActionLink("Add New Option", "AddOption", "Product", new { @class = "lighbox" }, null)%> Results in /Product/AddOption?class=lightbox <%= Html.ActionLink("Add New Option", "AddOption", "Product", new { @class = "lighbox" })%> Results in /Product/AddOption?Length=7 Thanks

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  • why can't asp.net find my textbox?

    - by phunehehe
    Hello, I'm trying to add more fields to the CreateUserWizardStep, here is what I added: <asp:CreateUserWizardStep ID="CreateUserWizardStep1" runat="server"> <ContentTemplate> <table border="0"> <tr> <td align="right"> <asp:Label ID="NickNameLabel" runat="server" AssociatedControlID="NickName">Nick Name:</asp:Label> </td> <td> <asp:TextBox ID="NickName" runat="server"></asp:TextBox> <asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" ControlToValidate="NickName" ErrorMessage="Nick Name is required." ToolTip="Nick Name is required." ValidationGroup="CreateUserWizard1">*</asp:RequiredFieldValidator> </td> </tr> <%-- The default code is left unchanged, but not shown here --%> </table> </ContentTemplate> </asp:CreateUserWizardStep> Then I tried to reference the objects like this protected void NewUserWizard_CreatedUser(object sender, EventArgs e) { CreateUserWizardStep step = NewUserWizard.FindControl("CreateUserWizardStep1") as CreateUserWizardStep; TextBox nickName= step.FindControl("NickName") as TextBox; // insert additional information to the database } The problem is, I'm getting nulls for nickName. Am I using FindControl("") incorrectly?

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  • ASP.NET custom templates, still ASP.NET controls possible?

    - by Sha Le
    Hello: we currently do not use asp.net controls (no web forms). The way we do is: 1 Read HTML file from disk 2 lookup database, parse tags and populate data finally, Response.Write(page.ToString()); here there is no possibility of using asp.net controls. What I am wondering is, if we use asp.net controls in those HTML files, is there way to process them during step 2? Thanks and appreciate your response.

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  • MVC view engine that can render classic ASP?

    - by David Lively
    I'm about to start integrating ASP.NET MVC into an existing 200k+ line classic ASP application. Rewriting the existing code (which runs an entire business, not just the public-facing website) is not an option. The existing ASP 3.0 pages are quite nicely structured (given what was available when this model was put into place nearly 15 years ago), like so: <!--#include virtual="/_lib/user.asp"--> <!--#include virtual="/_lib/db.asp"--> <!--#include virtual="/_lib/stats.asp"--> <!-- #include virtual="/_template/topbar.asp"--> <!-- #include virtual="/_template/lftbar.asp"--> <h1>page name</h1> <p>some content goes here</p> <p>some content goes here</p> <p>.....</p> <h2>Today's Top Forum Posts</h2> <%=forum_top_posts(1)%> <!--#include virtual="/_template/footer.asp"--> ... or somesuch. Some pages will include function and sub definitions, but for the most part these exist in include files. I'm wondering how difficult it would be to write an MVC view engine that could render classic ASP, preferably using the existing ASP.DLL. In that case, I could replace <!--#include virtual="/_lib/user.asp"--> with <%= Html.RenderPartial("lib/user"); %> as I gradually move existing pages from ASP to ASP.NET. Since the existing formatting and library includes are used very extensively, they must be maintained. I'd like to avoid having to maintain two separate versions. I know the ideal way to go about this would be to simply start a new app and say to hell with the ASP code, however, that simply ain't gonna happen. Ideas?

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  • Auto update the content in ASP.NET

    - by Zerotoinfinite
    I have to design a website where user can update their status, just like facebook and twitter and other social networking sites. Now my requirement is to refresh the feed with new user updates. Ex: when the new status comes facebook automatically add that on the top of the feed. on the other hand twitter shows the number of updates which is ready to be load. both ways are acceptable to me Now, I have to decide what is the best way to achieve this functionality. I am open to use ASP.NET. So I am confused that regular repeater control with timer and auto refresh or any other way? (I am wondering that if I set repeater for auto update and meanwhile if user is performing some action on any status it will lost). or do I need to change my framework from ASP.NET to ASP.NET MVC (I am little afraid with MVC as I have very less knowledge regarding it and I know it has a learning curve to master ajax/Jquery things) Any suggestion how I can I achieve it in a better and feasible way? EDIT1 I am not looking for a code but I want advice to achieve this. Supporting URL's would be appreciated. EDIT2 I am open to JQuery which can regularly check the database and fill the section. But my concern is this that if user is updating any comment and want to load/feed is automatically generated. his textbox text shouldn't be disappear (just like facebook, twitter or Linkedin) EDIT3 I have seen that on Stack overflow when any other user has modified the question/answer, I got notification like this question/answer is modified. and when I clicked on that notification only that section got reloaded. I am curious to know how to achieve this functionality. So that when user is commenting on a status/post and if meanwhile someone has updated the content then it would show the other user comment. Edit4 Could someone please recommend me an example of ASP.NET MVC 3+ which can do similar kind of activity (i.e. one input box and once user insert an text it will add the item in the list (with JQuery).

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  • CheckBox in asp.net mvc

    - by Xulfee
    i have two options One <%= Html.CheckBox("postType", false, new { @id = item.int_PostTypeId.ToString() })%> Second <input type="checkbox" name="postType" value="<%= item.int_PostTypeId.ToString() %> 1st question: what is differenct between these two method of check box declaration. 2nd question: and how can we get value of checked checkbox?

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  • Is using jquery to call a WCF Data Service from the UI violating the MVC pattern.

    - by Lee Dale
    I'm fairly new to ASP.Net MVC 2 and understand the MVC pattern in itself. But my question is what's the best way to populate dropdownlists in the UI sticking to the MVC pattern. Should I be going through the controller? Every article I've seen to do this shows how to do it using javascript and jquery. I have a test application that I'm re-writing in MVC2 I have my dropdowns working with jquery basically calling a WCF Data Service that returns JSON which populates the dropdowns. Seems to me though that this is bypassing the controller and going straight to the model therefore strictly violating the MVC pattern. Or am I missing something obvious here. You thoughts or best practices would be greatly welcome here. Thanks

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  • Multiple Default Routes in ASP.NET MVC to different Default Actions

    - by Alex
    I have multiple controllers with different actions (no "Index" actions). The actions I consider "default" actions, are named differently. I want to create default routes for their names and have the first available action (from my list of default actions) executed if only the controller name is provided in the route. So, for example, I have the following actions which I want to consider default and want checked for their existence in a controller in this order: List() Draw() ViewSingle() The routing should somehow search for /{controller} and then take the first available action from the list above as default action, e.g.: /ControllerA -> ControllerA.List() /ControllerB -> ControllerB.Draw() /ControllerC -> ControllerC.ViewSingle() /ControllerD -> ControllerD.Draw() /ControllerE -> ControllerE.List() Is this possible? I tried creating additional Default actions like this but couldn't get it to work: routes.MapRoute("Default1", "{controller}/{action}", new { controller = UrlParameter.Optional, action = "List" } routes.MapRoute("Default2", "{controller}/{action}", new { controller = UrlParameter.Optional, action = "Draw" } routes.MapRoute("Default3", "{controller}/{action}", new { controller = UrlParameter.Optional, action = "ViewSingle" } Help?

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  • Working with images in asp.net MVC ViewMasterPage in design mode

    - by amit.codename13
    While designing a master page i am adding a number of images to it. I have an image tag inside the master page, <img src="../../Content/Images/img19.jpg" class="profileImage" /> When i run my app, the image doesn't show up in the browser because the src path in the page that browser gets is same as in the master page. ie. "../../Content/Images/img19.jpg" But it should have been "Content/Images/img19.jpg" If i correct the src path in master page as <img src="Content/Images/img19.jpg" class="profileImage" /> Then I can see the image in the browser but not in design mode. Any help is appreciated.

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  • asp.net mvc making delete usercontrol information passing on and off

    - by mazhar kaunain baig
    i am creating a generalize deleteusercontrol , my aim is that on the listing page where all the records are listed when the delete is pressed i want to display the acknowledgment on the same page up the list. I had little idea to do that q1) first of all where will i place my deleteusercontrol(in the shared folder?). q2) on and off the deleteusercontrol as the acknowledgment will not be there all the time how would i be doing that on delete press. i don't want to pass any data in the querystring. q3)how would i be passing the records list id and listname to the general deleteusercontrol as it would be same for all the listing

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  • overriding Method asp.net mvc

    - by parminder
    Hi Experts, Can I override an ActionResult method. Say I have a method Index in AccountController like this public ActionResult Index() { return View(); } Can I have one more method with same name but with differnt parameters like public ActionResult Index(int userid) { return View(); } what will be the entries in the global.asax Regards Parminder

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  • ASP.NET MVC Catch All

    - by rkrauter
    The ignore route is defined like this: routes.IgnoreRoute("{resource}.axd/{*pathInfo}"); Why not routes.IgnoreRoute("{resource}.axd/{*}"); What is the significance of pathInfo? Thanks.

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  • Proper way to build a data Repository in ASP.NET MVC

    - by rockinthesixstring
    I'm working on using the Repository methodology in my App and I have a very fundamental question. When I build my Model, I have a Data.dbml file and then I'm putting my Repositories in the same folder with it.... IE: Data.dbml IUserRepository.cs UserRepository.cs My question is simple. Is it better to build the folder structure like that above, or is it ok to simply put my Interface in with the UserRepository.cs? Data.dbml UserRepository.cs              which contains both the interface and the class Just looking for "best practices" here. Thanks in advance.

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  • Saving contents of ApplicationState in ASP.Net (MVC)

    - by Saqib
    I have an internal app used to edit XML files on disk. The XML files are loaded into an object model which is stored in ApplicationState. I need to save this data. The one option is to do this every time the user changes some data. However, this seems a bit inefficient - writing the data out to disk each time a change is made. Instead, is it possible to be notified whenever the user closes their browser, plus just before the web server exits? Thus, the data would be saved each time a session ends, plus when the computer shuts down, etc. I thought that Application_End(), Application_Error() and Session_End() in Global.asax would provide this, but these methods don't seem to be called.

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  • Asp.Net MVC Handle Drop Down Boxes that are not part of the Model

    - by Pino
    I have a small form which the user must fill in and consists of the following fields. Name (Text) Value (Text) Group (Group - Is a list of option pulled from a database table) Now the Model for this View looks like so, public string Name { get; set; } public string Value { get; set; } public int GroupID { get; set; } Now the view is Strongly Typed to the above model. What method would one use to populate the drop down list? Since the data is not contained within the Model (It could be contained in the Model) should we be using Temp/View data? A HTML Helper? What would be the ideal way to achieve this.

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  • Binding in the view or the controller?

    - by da_b0uncer
    I've seen 2 different approaches with MVC on the web. One, like in ExtJS, is to bind the callbacks to the view via the controller. Finding every element on the view and adding the functionallity. The other, like in angular.js and in the lift-framework server-side, too, is to bind in the views and just write the functionallity in the controller. Which is better and cleaner? The ExtJS approach has dumb views and all the logic in the controller. Which seems clean to me. I had problems with global IDs for GUI-elements or relative navigation to GUI-elements in this approach. When I changed the view, the controller couldn't find the buttons anymore or I had multiple instances of one button with the same ID on a single application, because of the global ID. But I solved this with IDs that are only global in a view and can be on the application multiple times. So I could mess with the (dumb) views layout and design and the functionallity wouldn't break. The angular.js approach with the bindings in the view don't has the problem with global IDs. Also, the person who changes something in the view layout has to know the IDs anyway, so the controller can put the data at the right spot. So if I write <a ng-click="doThis()" /> for angular.js and implement doThis() or <a lid="buttonwhichdoesthis" /> for extjs and find the element with the local id and add doThis() as handler on the controller side, seems to be not so different. The only thing is, the second one has one more layer of indirection, which seems cleaner. The first one seems somehow to cost less effort.

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