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• Back button title not receiving previous view controller's title

  - by Prasanna

  I am pushing 2 view controllers in to navigation stack in ApplicationDidFinishLaunching. [navigationController pushViewController:favorites animated:NO]; [navigationController pushViewController:root animated:NO]; The app loads fine, but on the start screen, the back button title is simply "Back". I do have a title for the FavoritesViewController, and a navigationItem title setup to Favorites. Am I missing something? Appreciate your help.

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• ASP.NET MVC controllers with identical names

  - by Anton Gogolev

  Hi! Here's what I'm trying to do. I have an ASP.NET MVC web application, where I'd like to have a separate "admin" area (accessible via http://example.com/admin) and a regular area, available for all users. In both these parts of the site I have a /blogs section, but when accessing http://example.com/admin/blogs I want to be presented with admin interface for blogs, whereas usual http://example.com/blogs should just list all blogs. And the problem itself is: how do I get ASP.NET MVC to instantiate appropriate controllers, provided that there are two BlogsControllers: one in Site.Admin namespace, and the other is in Site.Sitefront namespace? Granted, I could rename admin controller to BlogsAdminController, but I'd like to keep the names as they already are.

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• Pop to top of Navigation View Controller

  - by Alavoil

  I am trying to set up a Navigation View where a user can enter in settings. Once a setting is finalized in the 3rd level (after a button press outside of the navigation bar), I would like to have the Navigation View popped back to the root. How can I do this?

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• Core-Data Can't pass managedObjectContext from app delegate to view controller

  - by yahuie

  I'm making a core-data application that is view based. I can create the managedObjectContext and 'use' it in the app delegate, but can not pass it to the mainviewcontroller. Probably something simple, but I can't find the problem after looking for quite a while. The managedObjectModel is nil in the mainviewcontroller. The log and error is here: 2010-06-02 11:01:10.504 TestCoreData[404:207] Could not make MOC in MainViewController implementation. 2010-06-02 11:01:10.505 TestCoreData[404:207] *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: '+entityForName: could not locate an NSManagedObjectModel for entity name 'Shelf'' 2010-06-02 11:01:10.506 TestCoreData[404:207] Stack: ( 30864475, 2452296969, 28852395, 12038, 3217218, 10258, 2700679, 2738614, 2726708, 2709119, 2736225, 38960473, 30649216, 30645320, 2702869, 2740143, 9704, 9558 ) (gdb) Code for app delegate here: -(BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { MainViewController *aController = [[MainViewController alloc] initWithNibName:@"MainView" bundle:nil]; self.mainViewController = aController; [aController release]; NSLog(@"before did finish launching"); if (self.managedObjectContext == nil) { NSLog(@"Could not make MOC in TestCoreDataAppDelegate implementation."); } //Just to see if I can access the here. NSFetchRequest* request = [[NSFetchRequest alloc] init]; NSEntityDescription* entity = [NSEntityDescription entityForName:@"Shelf" inManagedObjectContext:self.managedObjectContext]; [request setEntity:entity]; if (!entity) { NSLog(@"No Entity in TestCoreDataAppDelegate didfinishlaunching"); } NSLog(@"passed did finish launching"); NSManagedObjectContext *context = [self managedObjectContext]; self.mainViewController.view.frame = [UIScreen mainScreen].applicationFrame; self.mainViewController.managedObjectContext = context; [context release]; [window addSubview:[mainViewController view]]; [window makeKeyAndVisible]; return YES; } Code in MainViewController here: @implementation MainViewController @synthesize managedObjectContext; - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil { if ((self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil])) { // Custom initialization } return self; } - (void)viewDidLoad { [super viewDidLoad]; if (self.managedObjectContext == nil) { NSLog(@"Could not make MOC in MainViewController implementation."); } NSFetchRequest* request = [[NSFetchRequest alloc] init]; NSEntityDescription* entity = [NSEntityDescription entityForName:@"Shelf" inManagedObjectContext:self.managedObjectContext]; [request setEntity:entity]; } Thanks.

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• How can i look at a controller property to assign a classBinding in EmberJS Dynamically

  - by j_mcnally

  So far this is not working. Althrough the property should return true on my first page Props form GWVideoApp.VideosController isFirst: function() { return this.currentPage == 1; }.property(), isLast: function() { return this.currentPage == this.pages; }.property(), View: {{#view Ember.Button target="GWVideoApp.VideosController" classBinding="GWVideoApp.VideosController.isFirst:hide" tagName="li" action="prevPage"}}Prev{{/view}} When currentPage value changes the classBindings to do not

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• Cast MyEntity To LinqEntity throw a base controller class

  - by Mohammad Kani

  hi there i design a multilayer we appliction andusing LINQ a my data provider i need to user my own Entites instead o LINQ etities. so i created Entities Project and create my entities in it. when i get data from contex and cast them to my entities , everything is ok. but when i want to cast on of my entities to linq entity , an exception thrown. in my linq entity i add CTYPE operator from and to my entities Exp : Public Class BaseController(Of LinqEntity As {BaseEntity, New}, MyEntity As ModuleEntities.BaseEntityInfo) Implements Interfaces.Base(Of ServiceEntity) 'This methd work fine and cast LinqEntity to MyEntity Public Function GetAll() As List(Of MyEntity ) Dim q = (From x In Context.GetTable(Of LinqEntity)() _ Select x).Cast(Of MyEntityBase) End Function Public Sub Update(ByVal entity As MyEntity) 'here is problem 'cast , direct cast , or anything not work Dim x as LinqEntity = entity Me.Context.GetTable(Of LinqEntity).InsertOnSubmit(entity) Me.Context.SubmiChanges() End Sub

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• Is this a valid jquery getJSON call?

  - by Pandiya Chendur

  I am using jquery getJSON with asp.net mvc controller... I cant able to get it work.... public JsonResult GetMaterials(int currentPage,int pageSize) { var materials = consRepository.FindAllMaterials().AsQueryable(); var results = new PagedList<MaterialsObj>(materials, currentPage-1, pageSize); return Json(results); } and i am calling this with, $.getJSON('Materials/GetMaterials', "{'currentPage':1,'pageSize':5}", function(data) { }); This call doesn't seem to work.... when inspected through firebug i found this, The parameters dictionary contains a null entry for parameter 'currentPage' of non-nullable type 'System.Int32' for method 'System.Web.Mvc.JsonResult GetMaterials(Int32, Int32)' in 'CrMVC.Controllers.MaterialsController'. To make a parameter optional its type should be either a reference type or a Nullable type.<br> Parameter name: parameters

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• Visual Studio Game Controller

  - by Pythonator

  I'm making a program to improve your gaming skills, so its not a hacking program!! Now, i'm stuck on 1 thing, i need sort of a keylogger, that will logg what you do, For example, when you press space, it has to put Jumped in a Rich Text Box. When you left mouse click, it has to add Shots Fired to the Rich Text Box, and then , when right mousebutton is clicked, add Aiming Down Sights, but when its released it should also add something like Stopped Aiming Down Sights Can anyone help me on this? Greets

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• Dismiss iPhone Mail View Controller Keyboard with Return Key

  - by Cirrostratus

  How do I dismiss the keyboard in the MFMailComposeViewController when the user hits the return key?

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• Accessing functions in a parent controller

  - by meridimus

  I have made a ViewController in XCode for an iPhone project I'm working on, but I have a question about nested ViewControllers and what the best way to access a parents ViewController functions? Essentially, at the moment I have a SwitchViewController with MenuViewController (nested) and GameViewController (nested, which renders OpenGL ES). At the moment, I have animated view switching controlled in the SwitchViewController which works. But I want to call it after a player has selected the level from the MenuViewController and run the appropriate level in GameViewController. Not rocket science, I know. What's the best way to call parent functions?

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• ASP .net MVC Invoking default controller and action vs Setting a startup page

  - by SARAVAN

  Hi, I am developing code on the sample ASP .net MVC template provided by VS2010. The first time I ran the code without adding anything, the index.aspx page was invoked which is expected. But for some reasons I added a login.aspx and then accidentally set that as a startup page. Now when I ran the application the default startup url look like http://localhost/Views/login.aspx. I am thinking this is not a valid MVC routing path and I get the requested resource cannot be found error. I am not sure how to revert this back and make sure the default ../home/index is invoked. Can any one throw some light on this? Also should I not set the startup page as we do in asp .net webforms?

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• Loading contents of TableView Controller after showing Tab

  - by Teo

  Hello, I have a 4 tabbar application. The second tab has a tableviewController. When i select the second tab the tableview is displayed with it's contents and it works fine. The problem is that that data is comming from the network and it talks 2-3 seconds to load. So when i press the second tab it goes there after the contents have been loaded. How can i show an empty tableview (i'll put an activity indicator) and then load and show the contents? Teo

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• RSpec: Expectation on model's not working while testing controller

  - by gmile

  I'm trying to write a functional test. My test looks as following: describe PostsController do it "should create a Post" do Post.should_receive(:new).once post :create, { :post => { :caption => "ThePost", :category => "MyCategory" } } end end My PostsController (a part of it actually) looks as following: PostController < ActiveRecord::Base def create @post = Post.new(params[:post]) end end Running the test I'm always receiving a failure, which says that the Post class expected :new but never got it. Still, the actual post is created. I'm a newbie to RSpec. Am I missing something?

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• rspec and ruby 1.9.1: problem with dummy controller and routes

  - by giorgian

  I want to test a module that basically executes some verify statements, to ensure that actions are invoked with the correct method. # /lib/rest_verification.rb module RestVerification def self.included(base) # :nodoc: base.extend(ClassMethods) end module ClassMethods def verify_rest_actions verify :method => :post, :only => [:create], :redirect_to => { :action => :new } ... end end end I tried this: describe RestVerification do class FooController < ActionController::Base include RestVerification verify_rest_actions def new ; end def index ; end def create ; end def edit ; end def update ; end def destroy ; end end # controller_name 'foo' # this only works with ruby 1.8.7 : 1.9.1 says "uninitialized constant FooController" tests FooController # this works with both before(:each) do ActionController::Routing::Routes.draw do |map| map.resources :foo end end after(:each) do ActionController::Routing::Routes.reload! end it ':create should redirect to :new if invoked with wrong verb' do [:get, :put, :delete].each do |verb| send verb, :create response.should redirect_to(new_foo_url) end end ... end When testing: $ ruby -v ruby 1.8.7 (2010-01-10 patchlevel 249) [i486-linux] $ rake RestVerification :create should redirect to :new if invoked with wrong verb Finished in 0.175586 seconds $ rvm use 1.9.1 Using ruby 1.9.1 p378 $ rake RestVerification :create should redirect to :new if invoked with wrong verb (FAILED - 1) 1) 'RestVerification :create should redirect to :new if invoked with wrong verb' FAILED expected redirect to "http://test.host/foo/new", got redirect to "http://test.host/spec/rails/example/controller_example_group/subclass_1/foo/new" Is this a known issue? Is there a workaround?

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• ASP.NET MVC: How to Display custom object properties in View page

  - by Shyju

  I am trying to add ASP.NET MVC features(Especially Routing) to my already existing ASP.NET Web application.I added a Controlled and View (an asp.net page) .Now i want to know how can i display the details of object of my custom class( Ex : User) in the view ? Can assign the object in ViewData collection and render it in the view ? Hows that ? I already have a Datalayer (in ADO.NET) which is running for the the current ASP.NET web app.So i want to use that. I tried this in my controller public ActionResult Index() { BusinessObject.User objUser = new BusinessObject.User(); objUser.EmailId = "[email protected]"; objUser.ProfileTitle = "Web developer with 6 yrs expereince"; ViewData["objUser"] = objUser; ViewData["Message"] = "This is ASP.NET MVC!"; return View(); } How can i use this in the view page to display the user details ? Thanks in advance

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• Cannot render javascript from controller

  - by Ermin

  I want to display a modal window with an error message, when the user has entered something invalid in a form, but render another action if everything is ok. However, when I try to display the modal window with render :js => "jQuery.facebox(#{...})" only the actual javascript called is displayed: try { jQuery.facebox(...) } catch (e) { alert('RJS error:\n\n' + e.toString()); alert('jQuery.facebox(\"<div class=\'error\'>Error</div>\")'); throw e }

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• Reading int from a hidden field in .aspx

  - by vikp

  Hi, I'm struggling to read an int from the hidden field on aspx page. <input type = "hidden" id = "myIntegerId" name = "integerId" value= "<%: Model.MyObjectId %>" runat = "server" /> The value is definately on the form, I can see it in the debugger and print it with <%: % When I read the form values in the controller, instead of an int I recieve a following string: <%: Model.MyObjectId % I have tried casting data in the hidden field to string and calling ToString() method on that field, neither has worked. The data is submitted using the post event. I have a feeling that I'm missing something very basic... Any help is greately appreciated. Thanks

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• Is there a method I can use across controllers and if so, how do I use it?

  - by Angela

  I have several controllers that take an instance of different classes each (Email, Call, Letter, etc) and they all have to go through this same substitution: @email.message.gsub!("{FirstName}", @contact.first_name) @email.message.gsub!("{Company}", @contact.company_name) @email.message.gsub!("{Colleagues}", @colleagues.to_sentence) @email.message.gsub!("{NextWeek}", (Date.today + 7.days).strftime("%A, %B %d")) @email.message.gsub!("{ContactTitle}", @contact.title ) So, for example, @call.message for Call, @letter.message for Letter, etcetera. This isn't very dry. I'd like to have something like def messagesub(asset) @asset.message.gsub.... end or something like that so I can just use messagesub method in each controller.

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• skip after_filter in controller before_filter

  - by Rafael Carício

  I'm using Intercom rails in my application and I would like to not include intercom script in a certain situation. So, I would like to skip the intercom after_filter when a value is set in the user session. I tried that, but it didn't worked: class ApplicationController < ActionController::Base before_filter :verify_session def verify_session if skip_intercom? self.class.skip_after_filter :intercom_rails_auto_include end end end Any idea if it's possible?

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• Tableview with sections managed by fetched results controller

  - by Matthes

  Hi, I'm quite new to CoreData and need help with one issue. I have tableview which simply lists cities stored in SQLite db. City is defined by "cityId" and "name" attributes. Data are fetched using NSFetchedResultsController and everything works fine except that I can't figure out how to make FetchedResultsController to group cities by first letter of city names. When I supply "name" for sectionNameKeyPath argument of initWithFetchRequest:managedObjectContext:sectionNameKeyPath:cacheName: method, it creates section for each city, which is obviously something I don't want. I can't figure out how to create an expression which would make it work in way I need. thanks for any tips and/or advices on this Matthes

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• How can I support conditional validation of model properties

  - by Jeff

  I currently have a form that I am building that needs to support two different versions. Each version might use a different subset of form fields. I have to do this to support two different clients, but I don't want to have entirely different controller actions for both. So, I am trying to come up with a way to use a strongly typed model with validation attributes but have some of these attributes be conditional. Some approaches I can think of is similar to steve sanderson's partial validation approach. Where I would clear the model errors in a filter OnActionExecuting based on which version of the form was active. The other approach I was thinking of would to break the model up into pieces using something like class FormModel { public Form1 Form1Model {get; set;} public Form2 FormModel {get; set;} } and then we would validate appropriately depending on

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• How to redirect user to another page from view after it was loaded is ASP .NET MVC?

  - by Dmytro Tsiniavsky

  For example I have some view with action link: @Html.ActionLink("Action", "Controller") Action action returns some view: public ActionResult Action() { string someModelForView = "some url i need to redirect after view was fully loaded"; return View("SomeView", someModelForView); } What I need is to redirect user to url, defined in someModelForView model after view was fully loaded, and all javascripts on this page were executed. This view might be empty, without any content, I just need to execute some javascript, and after that redirect user to external page. How can accomplish that?

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• iPhone crashing when presenting modal view controller

  - by Michael Waterfall

  I'm trying to display a modal view straight after another view has been presented modally (the second is a loading view that appears). - (void)viewDidAppear:(BOOL)animated { [super viewDidAppear:animated]; // Show load LoadViewController *loader = [[LoadViewController alloc] init]; [self presentModalViewController: loader animated:NO]; [loader release]; } But when I do this I get a "Program received signal: "EXC_BAD_ACCESS"." error. The stack trace is: 0 0x30b43234 in -[UIWindowController transitionViewDidComplete:fromView:toView:] 1 0x3095828e in -[UITransitionView notifyDidCompleteTransition:] 2 0x3091af0d in -[UIViewAnimationState sendDelegateAnimationDidStop:finished:] 3 0x3091ad7c in -[UIViewAnimationState animationDidStop:finished:] 4 0x0051e331 in run_animation_callbacks 5 0x0051e109 in CA::timer_callback 6 0x302454a0 in CFRunLoopRunSpecific 7 0x30244628 in CFRunLoopRunInMode 8 0x32044c31 in GSEventRunModal 9 0x32044cf6 in GSEventRun 10 0x309021ee in UIApplicationMain 11 0x00002154 in main at main.m:14 Any ideas? I'm totally stumped! The loading view is empty so there's definitely nothing going on in there that's causing the error. Is it something to do with launching 2 views modally in the same event loop or something? Thanks, Mike Edit: Very strange... I have modified it slightly so that the loading view is shown after a tiny delay, and this works fine! So it appears to be something within the same event loop! - (void)viewDidAppear:(BOOL)animated { [super viewDidAppear:animated]; // Show load [self performSelector:@selector(doit) withObject:nil afterDelay:0.1]; } - (void)doit { [self presentModalViewController:loader animated:YES]; }

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• Computer Invisible On Domain

  - by Giawa

  Good afternoon, I'm sorry that this isn't a programming question specifically, but stackoverflow has been great at answering questions in the past, so I thought I'd give it a shot. One of our Linux users attempted to install Cygwin on our Windows Server 2008 Domain Controller. Now it is no longer possible to browse the domain and see all of the computers. For example, \\my_domain_name will just bring up a username/password dialog box (that will not accept any username or password, even the domain administrator) and no computers will ever be listed. However, I can still connect to computers based on their name or IP address. So \\eridanus or \\192.168.1.85 still work to connect to the shared directories of computers on our network. Does anyone know where I can find these settings? and how I can fix this problem? Thanks, Giawa

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• UINavigation controller problem

  - by VansFannel

  Hello. I'm developing an iPhone application and I'm trying to do this: I want an application with tree views. The view shown first, doesn't have a navigation bar. If the user tap on a button, I need to open the second view with a navigation bar and a table view. The user can also add new items to the table view. If the user do so, the application will show the third view where the user can add fields (this view has also a navigation bar). It may seem simple, but for me it is not. I don't know how to use the UINavigationController and have not found yet a similar example for what I do (paragraph translated by google). UPDATE I don't know how where to put UINavigationController. How can I do that? Can I use a UIViewController to call a UINavigationController? Thank you.

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