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• Lock HTML select element, allow value to be sent on submit

  - by ILMV

  I have a select box (for a customer field) on a complex order form, when the user starts to add lines to the order they should not be allowed to change the customer select box (unless all lines are deleted). My immediate thought was that I could use the disabled attribute, but when the box is disabled the selected value is no longer passed to the target. When the problem arose a while ago one of the other developers worked around this by looping through all the options and disabling all but the selected option, and sure enough the value was passed to the target and we've been using since. But now I'm looking for a proper solution, I don't want to loop through all the options because are data is expanding and it's starting to introduce performance issues. I'd prefer not to enable this / all the elements when the submit button is hit. How can I lock the input, whilst maintaining the selected option and passing that value to the target script? I would prefer a non-JavaScript solution if possible, but if needed we are running jQuery 1.4.2 so that could be used.

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• Storyboard as timer in WPF

  - by Adrian

  Hi, I'm trying to do smooth animation in procedural code. For this (in Silverlight at least), it's recommended to use the Storyboard timer rather than a DispatcherTimer. So I use something like this: Storyboard _LoopTimer = new Storyboard(); public void StartAnimation() { _LoopTimer.Duration = TimeSpan.FromMilliseconds(0); _LoopTimer.Completed += new EventHandler(MainLoop); _LoopTimer.Begin(); } void MainLoop(object sender, EventArgs e) { // Do animation stuff here // Continue storyboard timer _LoopTimer.Begin(); } And in Silverlight, this works fine. But in WPF, I only hit MainLoop() once. Setting RepeatBehaviour to Forever doesn't help, either. So what's the right way to do this in WPF with a Storyboard? Thanks very much.

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• Auto update CSS from SASS/SCSS in Rails?

  - by Vulgrin

  Maybe I'm confused on how SASS/SCSS works within Rails (2.3.8.) but I was under the impression that if I included the option Sass::Plugin.options[:always_update] = true that whenever I changed my SCSS file and then hit the page (controller) again, the SCSS would recompile. I can't seem to get this to work, and can't seem to find a good tutorial / example for it. I've tried setting the above property in the Environment.rb file, but it didn't seem to do anything. I tried putting it in its own initializer with require 'sass' but that doesn't seem to work either. What am I missing? Or am i just forced to keep a terminal open with a sass --watch command running to be able to rapidly debug / change my styles? thx

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• Making form submissions unique using PHP and HTML

  - by canadiancreed

  Hello all I'm currently developing a page where the user fills out a form, and when submitted they are taken to the next page. When on the next page, I want to have it so that if the user went back to the previous page using the back button, or hit refresh, the submission will not be saved into the DB. Now I recall reading somewhere that if you had a way to make each submission unique, this issue is averted, but after screwing around for hours on end, for the life of me I cannot recall how this could be done (using PHP), so long story short has anyone ran into this, and if so, what was your solution?

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• ADT will not allow creation of Android Activity

  - by NewShelbyWoo

  I installed the ADT bundle from http://developer.android.com/sdk/index.html yesterday, and I was following a basic Hello World tutorial. I created a new Android Application Project with a Blank Activity named MainActivity. The resulting project has an empty src folder and empty res\layout folder. There is a R.java file in the gen folder but it has no reference to MainActivity. This is what the SDK manager says I have installed Android SDK Tools v 22.6 Android SDK Platform-tools v 19.0.1 Android SDK Build-tools v 19 SDK Platform v 3 ARM EABI v7a System Image v 2 Android Support Library v 19.0.1 Google USB Driver v 9 I also tried manually creating an activity by right clicking the src folder and going to Android Activity, but when I hit Finish on the creation wizard, nothing happens. Does anyone have any clues as to what's going on? Did I miss a key component to install or something?

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• ASP.NET MVC: run code after view has rendered (close db transaction)

  - by thermal7

  Hi, I am using ASP.NET MVC2 with NHibernate, but am facing an issue. All calls to the database via NHibernate should be inside a transaction, however code inside the view kicks off database calls in some instances. Thus there is a need to be able to commit the transaction after the view has rendered. For example displaying a list of users and their user roles you might show the user role using this code: <%: Model.UserRole.Name % This will cause a hit on the database as the UserRole is loaded using a NHibernate proxy. You can fetch the UserRole eagerly which circumvents the issue in this case, but there are cases where it is much faster to use lazy loading. Anyway, is there a way to run code after a view has rendered?

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• Does Google Analytics have peformance overhead?

  - by Mohit Nanda

  To what extent does Google Analytics impact performance? I'm looking for the following: Benchmarks (including response times/pageload times et al) Links or results to similar benchmarks One (possible) method of testing Google Analytics (GA) on your site: Serve ga.js (the Google Analytics JavaScript file) from your own server. Update from Google Daily (test 1) and Weekly (test 2). I would be interested to see how this reduces the communication between the client webserver and the GA server. Has anyone conducted any of these tests? If so, can you provide your results? If not, does anyone have a better method for testing the performance hit (or lack thereof) for using GA?

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• Can a single solution hold projects from multiple repositories?

  - by cyclotis04

  I've begun setting up SVN repositories to store my code, and am wondering if a single Visual Studio solution can have projects from multiple repositories. I have a shared library with different helper functions, generic custom controls, etc, that are used by multiple projects, and hosted in its own repository. Then I have my project repository, which contains all of the program-specific code such as forms, etc. I know I could copy the shared library into the program's repository, then copy them back when I make changes, but I'd much rather keep them in different repositories so I can hit "Commit" and the general library commits to it's repository, and the program code commits to it. I'm currently using AnkhSVN, but if it's possible with other tools, I'll look into it. Preemptive clarification for all the "just use one repository" answers: The shared library is hosted in an online repository, viewable by anyone, but the program code is proprietary and resides on our office servers, so they need different repositories.

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• Differences between query using LINQ and IQueryable interface directly?

  - by JohnMetta

  Using Entity Framework 4, and given: ObjectSet<Thing> AllThings = Context.CreateObjectSet<Thing>; public IQueryable<Thing> ByNameA(String name) { IQueryable<Thing> query = from o in AllThings where o.Name == name select o; return query; } public IQueryable<Thing> ByNameB(String name) { return AllThings.Where((o) => o.Name == name); } Both return IQueryable< instances, and thus the query doesn't hit the server until something like ToList() is called, right? Is it purely readability that is the difference, or are the using fundamentally different technologies on the back-end?

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• MVVM-Light Loaded Evented Executing Twice

  - by user275561

  Let me show the code first, The Control <ItemsControl.ItemsPanel> <ItemsPanelTemplate> <Controls:MatrixGrid x:Name="matrixGrid"> <i:Interaction.Triggers> <i:EventTrigger EventName="Loaded"> <cmd:EventToCommand Command="{Binding MatrixLoaded}" CommandParameter="{Binding ElementName=matrixGrid}" /> </i:EventTrigger> </i:Interaction.Triggers> </Controls:MatrixGrid> <ItemsControl.ItemsPanel> <ItemsPanelTemplate> In The ViewModel Class I have public RelayCommand<MatrixGrid> MatrixLoaded { get; private set; } In The Constructor of the View Model I have MatrixLoaded = new RelayCommand<MatrixGrid>(MatrixGridAction); Now When I put a Breakpoint on the Function MatrixGridAction, The breakpoint is hit twice. Am I doing something wrong or is this a bug?

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• I get a 400 Bad Request error while using django-piston

  - by Cheezo

  Hello, I am trying to use Piston to provide REST support to Django. I have implemented my handlers as per the documentation provided . The problem is that i can "read" and "delete" my resource but i cannot "create" or "update". Each time i hit the relevant api i get a 400 Bad request Error. I have extended the Resource class for csrf by using this commonly available code snippet: class CsrfExemptResource(Resource): """A Custom Resource that is csrf exempt""" def init(self, handler, authentication=None): super(CsrfExemptResource, self).init(handler, authentication) self.csrf_exempt = getattr(self.handler, 'csrf_exempt', True) My class (code snippet) looks like this: user_resource = CsrfExemptResource(User) class User(BaseHandler): allowed_methods = ('GET', 'POST', 'PUT', 'DELETE') @require_extended def create(self, request): email = request.GET['email'] password = request.GET['password'] phoneNumber = request.GET['phoneNumber'] firstName = request.GET['firstName'] lastName = request.GET['lastName'] self.createNewUser(self, email,password,phoneNumber,firstName,lastName) return rc.CREATED Please let me know how can i get the create method to work using the POST operation?

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• Can only access asp.net app on localhost

  - by Kevin Donn

  I'm trying to get an asp.net application up on IIS on a Windows Server 2008 machine. I can hit the app from localhost, no problem. But I can't access the app using the server's domain name either locally or from another machine on the network. But here's the odd part. I can access a normal file on IIS using the domain name, both from a browser running on the server and from a browser running on another machine on the network. Here's a synopsis ("http" converted to "htp" below because I don't have enough points to have all these links in my message): From IE on the server itself: works htp://localhost/foo.htm works htp://localhost/App works htp://test.foo.com/foo.htm dead htp://test.foo.com/App From IE on another machine: works htp://test.foo.com/foo.htm dead htp://test.foo.com/App And when I say "dead" I mean the request times out. Any ideas?

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• How to stop an Android Service ONLY when there are no other activities in my app running?

  - by johnrock

  Is there a way I can test if there are any other activities in my app still alive? I am looking to stop a service in an onDestroy method, but only want to do this if there are no other activities from my app still alive on the stack. I have the call stop the service in the main activity's onDestroy() method. This works perfect EXCEPT that if a user launches my app, then launches a few activities in my app, then hits the home screen and RELAUNCHES my app, they will subvert my order and the main activity will now be above other activities of my app. From this state, if they hit the back button and 'back out' of my home screen they will trigger the onDestroy() method and kill the service even though there are other activities open on the stack. I want to avoid this by stopping the service ONLY if I am sure there are no other activities of mine open on the stack. Possible?

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• transfer parameter to next request

  - by user234194

  I have a situation where clicking a link in one column on the datatable opens A update FORM in the same page. The problem is when I hit the submit button for update, the render is set to false again of that update panel which was previously set true by parameter passed clicking the link. I tried htmlhiddenInput and did setValue and getvalue but the value is lost. Is there any way I can save that parameter send from link, when clicked, even after submitting the form. I achieved it doing session but I dont wanna use session. Any help is appreciated, thanks.

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• Is Boost.Tuple compatible with C++0x variadic templates ?

  - by Thomas Petit

  Hi, I was playing around with variadic templates (gcc 4.5) and hit this problem : template <typename... Args> boost::tuple<Args...> my_make_tuple(Args... args) { return boost::tuple<Args...>(args...); } int main (void) { boost::tuple<int, char> t = my_make_tuple(8, 'c'); } GCC error message : sorry, unimplemented: cannot expand 'Arg ...' into a fixed-length argument list In function 'int my_make_tuple(Arg ...)' If I replace every occurrence of boost::tuple by std::tuple, it compiles fine. Is there a problem in boost tuple implementation ? Or is this a gcc bug ? I must stick with Boost.Tuple for now. Do you know any workaround ? Thanks.

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• Enable editing does not call didSelectRowAtIndexPath ??

  - by elementsense

  Hi I have a UITableViewController where the user should be able to edit the items. In order to enable editing i use this : self.navigationItem.rightBarButtonItem = self.editButtonItem; And for everyone, how does not know where self.editButtonItem comes from, it is predefined by the SDK. So, now when I press on any item, this method is called : - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath but as soon as I hit the edit button and while editing is active, this method does not seemed to be called. Any idea what I missing ? This is the rest of the code that is related to editing : // Override to support conditional editing of the table view. - (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath { // Return NO if you do not want the specified item to be editable. return YES; } - (UITableViewCellEditingStyle)tableView:(UITableView *)tableView editingStyleForRowAtIndexPath:(NSIndexPath *)indexPath { return UITableViewCellEditingStyleNone; } - (BOOL)tableView:(UITableView *)tableView shouldIndentWhileEditingRowAtIndexPath:(NSIndexPath *)indexPath { return NO; } Thanks for the help. mcb

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• C# Processing Enter Key on Custom Container

  - by tycobb

  I am currently building a custom container control. Everything was going along smoothly until I hit a snag during testing. I noticed that the Enter key is not getting processed to the control that has focus inside the container. Everything else works as expected though. I am able to click the button with either the mouse or space bar, but enter does not want to get processed. After doing endless searches on container controls and processing the enter key I have come up with no solution. I tried returning Enter as true in IsInputKey(Keys keyData) and that didn't work. Neither did setting KeyPreview on the form. I have tried it with my custom button and .NET's standard button. Like I mentioned earlier, spacebar will trigger the desired effect. Please tell me what I am missing. There has to be an easy / stupid simple way to get Enter to process over to the active child control.

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• Presta Shop Switching Domain Issue

  - by Hammad Khalid

  I have a website made on Presta Shop CMS. I had it on my trial server. The installation and everything. It works and runs fine. I then copied (using FTP) every file from my trial server to the main domain. I did not install it on the main domain (bought from network solutions), but copied everything there. The issue is when i hit the main domain, it somewhat redirects me back to the trial server. I have checked and changed many of the default values. and many values in the database. But still havent had luck. Also made changes in the .htaccess file, still without any luck. I do not want to go through the installation process again on my main domain. You can check the site (main domain :- www.myworld-myhome.com, it will redirect you to hrm.com/esol/ )

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• Optional attribute values in MappedField

  - by David Brooks

  I'm new to Scala and Lift, coming from a slightly odd background in PLT Scheme. I've done a quick search on this topic and found lots of questions but no answers. I'm probably looking in the wrong place. I've been working my way through tutorials on using Mapper to create database-backed objects, and I've hit a stumbling block: what types should be used to stored optional attribute values. For example, a simple ToDo object might comprise a title and an optional deadline (e.g. http://rememberthemilk.com). The former would be a MappedString, but the latter could not be a MappedDateTime since the type constraints on the field require, say, defaultValue to return a Date (rather than a Date or null/false/???). Is an underlying NULL handled by the MappedField subclasses? Or are there optional equivalents to things like MappedInt, MappedString, MappedDateTime that allow the value to be NULL in the database? Or am I approaching this in the wrong way?

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• Visual Studio detaches from application as soon as debugging starts

  - by rwmnau

  I have a web application that I've always been able to run in Visual Studio and it debugs just fine (breakpoints work, I can pause execution, etc). Recently, the behavior changed suddenly, and a few things happen: I start debugging, it lauches IE and loads the application, but after a few seconds (sometimes the page hasn't even displayed yet), Visual Studio acts as if debugging has stopped - I'm able to edit code in VS again, and the "Play" button on the toolbar is enabled. The application continues to run in the IE window just spawned, but I'm not attached to it During this few seconds that VS is "debugging", because it detaches, my breakpoints show as hollow - as if I'm set to "Release" mode and they won't be hit. In fact, I have a breakpoint set in Page_Load, and it skips right by. I've checked, and I'm set to debug mode, though the compile mode dropdown is missing from my toolbar (I checked in the build properties to ensure I was in debug mode). Can anybody shed some light here?

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• Does ActiveState PerlApp have a problem binding ico files as "Bound Files"

  - by Lozzer

  I posted this question at ActiveState but got no reply from support or in a discussion forum. Here is probably better. I'm a long time user of PerlApp (ver. 8.2.1 Build 292072) and I have experienced very few problems. But just recently, I've been creating a new Tkx app and hit a problem. Tkx allows ico files to be used in the application (replacing the Tk icon) and this works perfectly in development. But, when I have tried binding my ico file in "Bound Files" of PerlApp it refuses to work and the only way to get my app to run is by putting the original ico file in the same folder as the exe. I have tried changing the name of the "Icon Sources" ico file, removing the "Icon Sources" ico file completely, but the "Bound Files" ico file refuses to be bound. Any suggestions?

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• First Fluent NHibernate Project

  - by Andy

  I'm trying to follow the "Your first project" tutorial at http://wiki.fluentnhibernate.org/Getting_started and have hit a roadblock. When I try to run the console application, I'm getting this error: An invalid or incomplete configuration was used while creating a SessionFactory. Check PotentialReasons collection, and InnerException for more detail. I have created a SQLite database "firstProject.db" and referenced the full path to the file in the call to: return Fluently.Configure() .Database(SQLiteConfiguration.Standard .UsingFile(DbFile)) .Mappings(m => m.FluentMappings.AddFromAssemblyOf<Program>()) .ExposeConfiguration(BuildSchema) .BuildSessionFactory(); so I don't know what I'm doing wrong. What/where is this "PotentialReasons" collection? Thank you for the help. Andy

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• Most efficient way to update a MySQL Database on a Linux host with that of an ASP.Net Form on Window

  - by NJTechGuy

  My kind webhost (1and1) royally asked me to go elsewhere to do something like this. I have 2 sites. One of them was developed by a .Net programmer. Now I am contracted to implement a PHP site and fetch data from the .Net site. There is an ASP.Net form that a customer fills and when they hit submit, the data gets stored in SQL Server DB. How do I also store the same data in MySQL parallelly? I cannot directly use some database connectors with ASP.Net since MySQL connectivity is not supported on 1and1 Windows hosting (biz account, no less!). What I thought of is to publish an RSS feed of entries in ASP.Net site and routinely scrape that data into MySQL on Linux host. It is an overkill, I know. Not efficient. I thought I would pick the best brains on SOF to get a different, efficient opinion. Thanks in advance guys...

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• How do I get property injection working in Ninject for a ValidationAttribute in MVC?

  - by jaltiere

  I have a validation attribute set up where I need to hit the database to accomplish the validation. I tried setting up property injection the same way I do elsewhere in the project but it's not working. What step am I missing? public class ApplicationIDValidAttribute : ValidationAttribute { [Inject] protected IRepository<MyType> MyRepo; public override bool IsValid(object value) { if (value == null) return true; int id; if (!Int32.TryParse(value.ToString(), out id)) return false; // MyRepo is null here and is never injected var obj= MyRepo.LoadById(id); return (obj!= null); } One other thing to point out, I have the Ninject kernel set up to inject non-public properties, so I don't think that is the problem. I'm using Ninject 2, MVC 2, and the MVC 2 version of Ninject.Web.MVC. Thanks!

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• Safari javascript cookie issue

  - by Aaron Moodie

  I've hit a bit of a weird issue in Safari in regards to setting a js cookie. The cookie itself is just a rgb colour value, which gets set using .click(), and is working fine in Chrome and Firefox, yet in Safari the value of the cookie is incomplete, showing up as rgb(193 instead of rgb(193, 184, 76) as the other browsers do. The jQuery function I'm using to set the cookie is: $('.project_link a').click(function() { var link_colour = $(this).css("color"); document.cookie = "colour="+link_colour+";expires=;path=/"; });

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