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  • Keypress event on inserted span (jQuery)

    - by Coder
    Hi, I've been researching for a long time, and haven't found a possible solution. The problem I have is that I'm trying to attach an event handler to an span element just inserted. So basically the problem is, when a user performs a particular action that I set (clicking a button by example) I call this function: function AppendSpan() { $('#mydiv').append('<span id="someid" contenteditable="true">Some TExt</span>'); //Then I want to handle the keypress event on the inserted span $('#someid').keypress(function(event){//Do something here}); } The problem is that the keypress event is never triggered on the inserted span, I tried with the click event and it works fine, but not the keypress or keydown,keyup events. I also tried with $('span').live("keypress",function(event){//Do something}); but didn't work. Any suggestions would be appreciated, I need this to work only in FF, so no support for IE required.

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  • Using Sessions in WCF Services called from Silverlight

    - by Torbjörn Josefsson
    (Using Visual Studio 2008, and Silverlight 3) -I've really looked around for this one, and now I'm just confused by all the solutions that simply won't work for me. I'm trying to call a WCF service from a Silverlight client, which is no problem, but I can't get the service to handle sessions (I want to remember a few things about the callee between calls) I've gathered that basicHttpBinding is no good for sessions, and I haven't managed to make wsHttpBinding work... what's the matter? I would have thought this was a pretty basic thing people would want in their WCF services, or am I just completely muddle-headed not to see how it can be done?

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  • Getting publish_stream extended permission from the user

    - by José Joel.
    I was ussing Facbook connect in my iPhone app, but in december the posts stopped working. After some research I found that i'm supossed to use stream.publish, something like: NSString *att = @"{\"bob\":\"i\'m happy\",\"caption\": \"User rated the internet 5 stars\", \"description\": \"a giant cat\"}"; NSDictionary *attachment = [NSDictionary dictionaryWithObject:att forKey:@"attachment"]; [[FBRequest requestWithDelegate:self] call:@"facebook.stream.publish" params:attachment]; Which i think it's correct, but the posts still don't work. Someone told me that i need to get publish_stream extended permission from the user, but i dont know how to do that.

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  • Can an out-of-process COM object determine its parent process?

    - by Tom Williams
    From an out-of-process COM object (LocalServer32) can I determine the client process that requested the creation of the object? - to be specific I need to get hold of the client processes command line. This question arrises because (due to poor standardisation, implementation and support) the potential 3rd party clients of the object have a variety of idiosyncracies which the object needs to workaround. To do this the object needs to be able to identify its current client. Extending the interface of the COM object so that the client can identify itself is unfortunately not possible ... or to be more precise the interface can be extended but I won't be able to get the clients to call the extension.

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  • iOS Facebook SDK: FBRequestDelegate only works on AppDelegate??

    - by RMR
    Hi guys, I want to encapsulate all my Facebook interactions within a FacebookFacade class to keep things clean and tidy. I have an instance of the iOS SDK Facebook class within my FacebookFacade. My problem is that when I make a Graph API call within the facade, such as: [self.facebook requestWithGraphPath:@"me" andDelegate:self]; the only method of FBRequestDelegate that gets called is requestLoading: and nothing else. I have tried putting similar code in other places, like in controllers and other models, and there too not all of the FBRequestDelegate methods get called, only requestLoading:. In fact the only way I can get the other FBRequestDelegate methods to be called is to put all my Facebook logic in the AppDelegate and make my AppDelegate the FBRequestDelegate. Why is this the case? Am I missing something here? I definitely do not want to use the AppDelegate as my FBRequestDelegate as I don't want to confuse the purpose of the AppDelegate. Thanks.

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  • ValidatorEnable is not defined when rolled with AJAX

    - by tigermain
    I have some webforms which have been working fine with various static and dynamically generated validators. For some reason now that I have implemented UpdatePanels on the forms, when I manually call the ValidatorEnable() method on one of them (when I click a checkbox) I get the "ValidatorEnable is not defined" error message. I am passing the same clientID etc into the method that I was using before I implemented the AJAX.net controls It would seem .net isnt rendering the /WebResource.axd?d=aUu4P3dfjWWyw3KQ9t2ZdqxnzYhrtq9uWWiRZduXE-g1 script to the page, adding it manually I get other missing JS objects. So how can I force it to register the relevant scripts? N.B. The validators in question are being rendered in a repeater

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  • ActionBarSherlock + ViewPager caching more then just prev/next view

    - by miroslavign
    on the page: onCreate called for two tabs each time one tab is selected there is explained how the ABS(actually ViewPager) is working in order for ViewPager to be able to do a scrolling. It is clear that at least a prev/next page need all to be created at the same time. Would it be possible to "cache" more than just prev/next Views(Fragments), in a way: I am on Page 1 and there I have a network call to fetch some data(doing this in Activity, not in Fragment - btw. is this OK?) switch to Page 2, and then switch to Page 3, and then switch to Page 1 = Here my page is recreated (using some caching though, BUT, I do not need any recreation if possible) So, it would be nice to cache all the pages. How to accomplish this If possible in current version (4), or this would be some new feature? Or even better question, how to postpond/disable destroying of views?

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  • Is a Service Bus a good option to communicate with multiple external servers?

    - by PFreitas
    We are developing an application that communicates, via web services or TCP/IP sockets, with multiple servers (up to 50 different external companies). Basically, the exchanged messages are the same (XML), but depending on the inputs of our application we should call 1 or more external servers. The benefits we would expect of introducing a Service Bus in the architecture would be: 1- Remove the need to manage all point-to-point configurations (all the 50 endpoints); 2- Simplify the communication layer of our application by having only one server to talk to; Is a Service Bus a good architectural option for this scenario? What is the best (simplest) Service Bus for this kind of communication? I read a few MSDN articles on Azure Service Bus Relay, but it didn’t seem to fit our needs. Am I wrong? Thanks for your help.

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  • Why not speed up testing by using function dependency graph?

    - by Maltrap
    It seems logical to me that if you have a dependency graph of your source code (tree showing call stack of all functions in your code base) you should be able to save a tremendous amount of time doing functional and integration tests after each release. Essentially you will be able to tell the testers exactly what functionality to test as the rest of the features remain unchanged from a source code point of view. If for instance you change a spelling mistake in once piece of the code, there is no reason to run through your whole test script again "just in case" you introduced a critical bug. My question, why are dependency trees not used in software engineering and if you use them, how do you maintain them? What tools are available that generate these trees for C# .NET, C++ and C source code?

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  • Cocoa : Remove Item from NSArrayController

    - by Holli
    I have a NSArrayController bound to a NSTableView. With this I have the typical Add/Remove buttons. While Adding an item is very straight forward (I call a method, create an object with default values and add it) I have problems deleting objects from the controller. I know I can do this the easy way when connecting the button with the remove action from the ArrayController. But this is not what I want. I need to remove the object manually because I have some additional code to process. Anway, removing objects seems far more complcated then I expected. It already tried: NSArray *items = [doToItemsArrayController selectedObjects]; [doToItemsArrayController removeSelectedObjects:items]; or NSIndexSet *iSet = [doToItemsArrayController selectionIndexes]; [doToItemsArrayController removeSelectionIndexes:iSet]; None of them seems to work. How do I remove the selected Object from an NSArrayController with Objective-C code?

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  • Does UIActivityIndicator require manual threading on iPhone

    - by Akusete
    I am running creating an iPhone application which performs a costly operation and I wanted to create an activityIndicator to let the user know the application has not frozen. The operation is performed entirely in one event call... so there is no chance for the UI framework to receive control to actually display and animate this indicator. The sample apps which use the UIActivityIndicator (or any other similar animation) start and stop the animation in different events, triggered separately at different stages of the program. Do I need to manually create a separate thread to run my operation in, or is there already default support for this kind of behavior?

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  • Can I make pdb start debugging right away?

    - by hasen j
    I want to debug a python project The problem is, I don't know where to set a break point, what I want to do, is be able to call a method SomeClass( some_ctor_arguments ).some_method()` and have the debugger be fired right away How do I do that? I tried pdb.run( string_command ) but it doesn't seem to work right >>> import pdb >>> import <some-package> >>> pdb.run( .... ) > <string>(1)<module>() (Pdb) s NameError: "name '<some-package>' is not defined"

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  • javascript script innerhtml

    - by Sanjay
    hi i want to call function changeDivHTML which pass the image <a href="javascript:void(0)" onclick="changeDivHTML(<img src='.DIR_WS_IMAGES .$addimages_images[$item]['popimage'].'>)"> and the function add this images to particular id's div. function is this <script language="javascript" type="text/javascript"> function changeDivHTML(item) { alert(item); previousInnerHTML = 'item'; alert(previousInnerHTML); document.getElementById('image').innerHTML = previousInnerHTML; } </script> but when i click on images browser showas the javascript error. Error: invalid XML attribute value Source File: http://xxx.xxx.xxx.xxx:xxx/product_info.php?products_id=31 Line: 1, Column: 23 Source Code: changeDivHTML(<img src=images/products/top/product_big1.jpg>) plsease help how to remove this error.

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  • Handling multiple exceptions

    - by the-banana-king
    Hi there, I have written a class which loads configuration objects of my application and keeps track of them so that I can easily write out changes or reload the whole configuration at once with a single method call. However, each configuration object might potentially throw an exception when doing IO, yet I do not want those errors to cancel the overall process so that the other objects are still given a chance to reload/write. Therefore I collect all exceptions which are thrown while iterating over the objects and store them in a super-exception, which is thrown after the loop, since each exception must still be handled and someone has to be notified of what exactly went wrong. However, that approach looks a bit odd to me. Someone out there with a cleaner solution? Here is some code of the mentioned class: public synchronized void store() throws MultipleCauseException { MultipleCauseException me = new MultipleCauseException("unable to store some resources"); for(Resource resource : this.resources.values()) { try { resource.store(); } catch(StoreException e) { me.addCause(e); } } if(me.hasCauses()) throw me; }

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  • how to start animation using MVVM?

    - by Kishore Kumar
    I am converting my exising Application using WPF using MVVM pattern. I have different storyboards in my view . eg. 1. showing splashscreen while loading the app 2. while clicking Menu Toggle button/Radio Button to show the slide in and Slide out animation effect 3. And different mouseover effect for different elements available in the View. How will i call the storyboard using MVVM and which is the best method?. To show the mouse over effect do we really have to use MVVM or code behind?

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  • Top tips for designing GUIs?

    - by oxbow_lakes
    A while back I read (before I lost it) a great book called GUI Bloopers which was full of examples of bad GUI design but also full of useful tidbits like Don't call something a Dialog one minute and a Popup the next. What top tips would you give for designing/documenting a GUI? It would be particularly useful to hear about widgets you designed to cram readable information into as little screen real-estate as possible. I'm going to roll this off with one of my own: avoid trees (e.g. Swing's JTree) unless you really can't avoid it, or have a unbounded hierarchy of stuff. I have found that users don't find them intuitive and they are hard to navigate and filter. PS. I think this question differs from this one as I'm asking for generalist tips

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  • Why doesn't ConcurrentQueue<T>.Count return 0 when IsEmpty == true?

    - by DanTup - Danny Tuppeny
    I was reading about the new concurrent collection classes in .NET 4 on James Michael Hare's blog, and the page talking about ConcurrentQueue<T> says: It’s still recommended, however, that for empty checks you call IsEmpty instead of comparing Count to zero. I'm curious - if there is a reason to use IsEmpty instead of comparing Count to 0, why does the class not internally check IsEmpty and return 0 before doing any of the expensive work to count? E.g.: public int Count { get { // Check IsEmpty so we can bail out quicker if (this.IsEmpty) return 0; // Rest of "expensive" counting code } } It seems strange to suggest this if it could be "fixed" so easily with no side-effects?

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  • require_owner code to limit controller actions not recognizing current user as owner

    - by bgadoci
    I am trying to restrict access to certain actions using a before_filter which seems easy enough. Somehow the ApplicationController is not recognizing that the current_user is the owner of the user edit action. When I take the filter off the controller correctly routes the current_user to their edit view information. Here is the code. Link to call edit action from user controller (views/questions/index.html.erb): <%= link_to "Edit Profile", edit_user_path(:current) %> ApplicationController (I am only posting the code that I think is affecting this but can post the whole thing if needed). class ApplicationController < ActionController::Base def require_owner obj = instance_variable_get("@#{controller_name.singularize.camelize.underscore}") # LineItem becomes @line_item return true if current_user_is_owner?(obj) render_error_message("You must be the #{controller_name.singularize.camelize} owner to access this page", root_url) return false end end and the before_filter class UsersController < ApplicationController before_filter :require_owner, :only => [:edit, :update, :destroy] #... end I simply get the rendering of the error message from the ApplicationController#require_owner action.

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  • Avoiding string copying in Lua

    - by Matt Sheppard
    Say I have a C program which wants to call a very simple Lua function with two strings (let's say two comma separated lists, returning true if the lists intersect at all, false if not). The obvious way to do this is to push them onto the stack with lua_pushstring, which works fine, however, from the doc it looks like lua_pushstring but makes a copy of the string for Lua to work with. That means that to cross over to the Lua function is going to require two string copies which I could avoid by rewriting the Lua function in C. Is there any way to arrange things so that the existing C strings could be reused on the Lua side for the sake of performance (or would the strcpy cost pale into insignificance anyway)? From my investigation so far (my first couple of hours looking seriously at Lua), lite userdata seems like the sort of thing I want, but in the form of a string.

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  • How does Linux blocking I/O actually work?

    - by tgguy
    In Linux, when you make a blocking i/o call like read or accept, what actually happens? My thoughts: the process get taken out of the run queue, put into a waiting or blocking state on some wait queue. Then when a tcp connection is made (for accept) or the hard drive is ready or something for a file read, a hardware interrupt is raised which lets those processes waiting to wake up and run (in the case of a file read, how does linux know what processes to awaken, as there could be lots of processes waiting on different files?). Or perhaps instead of hardware interrupts, the individual process itself polls to check availability. Not sure, help?

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  • How modify ascii table in C?

    - by drigoSkalWalker
    like this: My ASCII Chart 0 1 2 3 4 5 6 7 8 9 A B C D E F 0 NUL SOH STX ETX EOT ENQ ACK BEL BS HT LF VT FF CR SO SI 1 DLE DC1 DC2 DC3 DC4 NAK SYN ETB CAN EM SUB ESC FS GS RS US 2 SP ! " # $ % & ' ( ) * + , - . / 3 0 1 2 3 4 5 6 7 8 9 : ; ? 4 @ A B C D E F G H I J K L M N O 5 P Q R S T U V W X Y Z [ \ ] ^ _ 6 ` a b c d e f g h i j k l m n o 7 p q r s t u v w x y z { | } ~ DEL I want to call a function, alter the ascii sequence in this function and when it return, the ascii sequence back to the original. thanks in advance!

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  • "Temporary object" warning - is it me or the compiler?

    - by Roddy
    The following snippet gives the warning: [C++ Warning] foo.cpp(70): W8030 Temporary used for parameter '_Val' in call to 'std::vector<Base *,std::allocator<Base *> >::push_back(Base * const &)' .. on the indicated line. class Base { }; class Derived: public Base { public: Derived() // << warning disappears if constructor is removed! { }; }; std::vector<Base*> list1; list1.push_back(new Base); list1.push_back(new Derived); // << Warning on this line! Compiler is Codegear C++Builder 2007. Oddly, if the constructor for Derived is deleted, the warning goes away... Is it me or the compiler?

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  • Integrating my new program with Windows

    - by Carlos
    I've written a log parser, with some generous and insightful help from the SO community: http://stackoverflow.com/questions/2906630/keeping-the-ui-responsive-while-parsing-a-very-large-logfile Now, I'd like to be able to right click one of these logs, select "MyNewLogParser" from "Open With.." and see it open in my new program. This would require me to Change something about my XP installation to show my program in the dropdown list Change the program so that it knows to open the selected file and run the parsing. What do you call these things, and how is it done? I don't know what to search for...

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  • Ant database rebuild script, avoiding interactive prompting

    - by fras85
    Hi Guys. I'm writing an ant script to rebuild our database i.e. dropping everything and rebuilding from scratch. The problem our DBA adds a Y/N prompt before executing the rest of the script, and therefore we can't call this from an automated build process. Does anyone have any suggestions to circumvent the Y/N prompt? Obviously we could create seperate scripts, one for the DBA's and one for the automated build - but this requires maintaning both. We're running on Windows so it's not as easy as using sed to strip out the prompt...but i'm thinking something along those lines. Not sure if that's clear enough but hope you can help. Cheers.

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  • DotNetOpenAuth for previously authorized site

    - by Burke Holland
    I've had great luck with DotNetOpenAuth to do 3 legged authorization. Currently, I am connecting and pulling in some Google data. My question is that apparently, if you have already auth'd my web application to your Google account, when I call var accessTokenResponse = google.ProcessUserAuthorization(); It basically does nothing. How do I get the token for an account that has already auth'd my application? I see no callback of any kind. I'm chocking this up to my ignorance about OAuth in general.

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