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• Ctrl+Click / Command+Click not working with analytics

  - by user347998

  Hi All, I created my own analytics for my site to track outbound click events using jquery. Now the thing with preventDefault() is that it does not allow for the Ctrl+Click or COmmand+click operation in the browser to open the link in new tab/window. So my solution was to detect e.metaKey || e.ctrlKey and use window.open. This does not work very great with safari unless the user changes browser behavior. I am wondering if anyone here knows what other analytics users do - like how does google etc deal with this problem in tracking outbound links? From this link: http://www.google.com/support/googleanalytics/bin/answer.py?hl=en&answer=55527 - looks like google will also face the same problem. Thoughts?

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• jQuery - Trigger click event on links with spacebar?

  - by Herb Caudill

  It looks like in most browsers, an <input type="submit"> treats both [spacebar] and [enter] as a click, but an <a> link only treats [enter] as a click. My app uses a number of links formatted to simulate buttons, so a user that is accustomed to tabbing to a button and pressing [spacebar] will be frustrated. This bit of jQuery solves the problem: $("a.Button").die("keypress").live("keypress", function(e) { if (e.which == 32) { $(this).trigger("click"); e.preventDefault(); } }); My question: Is this a reason not to do this? I'm a little reluctant to override the browser's default behavior on something as basic as this, but since I'm already abusing the link tag to make it look like a button, at least this way I'm not violating the user's expectations any further.

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• IVR-style dialog system / workflow / menu

  - by unbeli

  I need to build a dialog system similar to IVR used in call centers. My system is not phone-based, but the dialog is similar. Something like System: "Main menu: Enter [1] for menu1, [2] for menu2" User: [1] System: "menu1: enter [1] for apples, [2] for oranges, [3] for main menu" User: [7] System: "What??" System: "menu1: enter [1] for apples, [2] for oranges, [3] for main menu" User: [2] ... and so on I want to have a nice declarative description of all the possible options and a nice way to run through that tree, guided by user input. Already considered: ANTLR-generated lexer/parser (seems to be an overkill), SCXML-based state machine (seems like only transitions can be declared, the rest needs to be coded)

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• Could the assign function for containers possibly overflow?

  - by Kristo

  I ran into this question today and thought I should post it for the community's reference and/or opinions. The standard C++ containers vector, deque, list, and string provide an assign member function. There are two versions; I'm primarily interested in the one accepting an iterator range. The Josuttis book is a little ambiguous with its description. From p. 237... Assigns all elements of the range [beg,end); this is, is replaces all existing elements with copies of the elements of [beg,end). It doesn't say what happens if the size of the assignee container is different from the range being assigned. Does it truncate? Does it automagically expand? Is it undefined behavior?

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• Load HTML frames in a specific order without back button problems?

  - by Joergen Bech

  I have a web page that uses a frameset. Due to scripting and object dependencies, I need to load the frames in a specific order. I have used this example as a template: The JavaScript Source: Navigation: Frames Load Order This loads an empty page in place of the page I need to load last, then replaces it with the correct page after the first page has loaded. However: I also need to use the browser Back button. If you run the sample at the above link, let both frames load, then click the Back button, the top frame reverts to the temporary blank page. It is then necessary to click the Back button again to navigate to the page before the frameset. Is there a way to force frames to load in a specific order without this Back button behavior - or a way to force the Back button to skip the empty page? This needs to work with Internet Explorer 6 and 7 and preferably with Firefox 3 as well.

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• NSURLConnection on simulator and iphone performance issues

  - by Nava Carmon

  I'm experiencing a weird problem and i wonder if anybody else has noticed this: I'm using NSURLConnection as it appears in apple's examples to get xml files from a certain server - pretty straight forward. And most of time it works, but sometimes it's just stuck after initialing and don't get into connection's delegate methods. I'm working with WiFi & 3G and the same server all the time. When it comes to didFailWithError i see that mostly it was a timeout error. When I enter same link in Safari it takes a second to bring data. And after another trial I can access the link. What might be the reason for such a weird behavior? How can I improve it? What is the role of cache policy with NSURLConnection? Thanks, Nava

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• How do you use selected vertical blocks in Visual Studio 2008 and 2010?

  - by jamesmoorecode

  I get that you can select a vertical block in Visual Studio 2008 (alt-drag), but I don't understand how you use it once it's selected. How do you: Move the selection point inside the block and have the text you're typing get inserted on every line simultaneously? Move the block one space to the right/left Or can you just copy/delete the selection? I assumed when I saw the ability to select that it was something like TextMate's vertical blocks, but maybe it's just not as advanced as that. New behavior (as of VS2010 RC - added 13 Feb 2010): You can now type in the selection and have the same thing show up on every line. Tab moves the selected block

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• CommandManager Executed Events don't fire for custom ICommands

  - by Andre Luus

  The WPF CommandManager allows you to do the following (pseudo-ish-code): <Button Name="SomeButton" Command="{Binding Path=ViewModelCommand}"/> And in the code-behind: private void InitCommandEvents() { CommandManager.AddExecutedEventHandler(this.SomeButton, SomeEventHandler); } The SomeEventHandler never gets called. To me this didn't seem like something very wrong to try and do, but if you consider what happens inside CommandManager.AddExecutedEventHandler, it makes sense why it doesn't. Add to that the fact that the documentation clearly states that the CommandManager only works with RoutedCommands. Nonetheless, this had me very frustrated for a while and led me to this question: What would you suggest is the best workaround for the fact that the CommandManager does not support custom ICommands? Especially if you want to add behavior around the execution of a command? For now, I fire the command manually in code behind from the button click event.

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• Difference between "traditional" COM and COM+ (in Component Services)

  - by kizzx2

  By the "traditional" way I mean registering the DLL in registry. There seems to be another method to set up it by going to mmc-Component Services-COM+ Applications and adding the .tlb file. I have a COM library that supports both methods. When it installs, it registers itself in the registry as a COM component and it works fine. However, when I added the .tlb file using the Component Services method, the behavior seems to be different and it starts giving out errors. I suspect it has something to do with marshaling and inter-process object transfer? (Sorry, I'm really a noob in the COM area) Can anyone point me to a good resource to clear my understanding?

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• android call log like design

  - by Alxandr

  I'm trying to create a design for a list that looks like (and mostly behaves like) the call log, like shown here: I don't need all the design, but what I'm trying to achieve is the two-columned design with the splitter in-between, and the behavior that if I click on the main item (the left part) one thing happens (in this case, you open some details about the call), and if you press the outer right part something else happens (you call the contact). I'm pretty new to android, but I've managed to do most of the designs I wanted so far, so I don't need the entire layout for this one, only the part that does the splitting and the splitter. And if possible it would be nice to know how to map the clicks appropriately, though I think I might be able to find that out by my self.

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• Non-interactive command-line FTP client alternative to weex

  - by Halfgaar

  Hi, I'm looking for a good non-interactive, command line FTP client to be run from a Rakefile. Like Weex, but better. Weex has different problems (for me): It stores its config file in my home dir. I want the FTP config to be part of my project and weex doesn't have a --config-file option or something. The behavior of ignoring files seems to be completely buggy. It doesn't remove files which it should, it doesn't let me specify relative paths, even though I do it according to the man page's instructions, etc. I've been struggling with it for an hour now and it is just completely inexplicable. I tried running rsync over FTPFS/FUSE, but that is dead slow because FTP doesn't store mtimes, which makes rsync diff every file. Plus, there are some refresh problems and other bugs that cause access failure (http://bugs.gentoo.org/208168). I'm stuck with FTP, unfortunately. Any help is appreciated.

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• How to make JQGrid scroll properly in IE6?

  - by mcv

  I've got a JQGrid that needs to scroll. It works fine in Firefox, but in IE6, the grid stays stationary while the rest of the content scrolls underneath it. What might be a complicating factor is that the grid is inside tabs, inside a dialog. I've googled all over the place, but I can't find a solution for this problem, so I turn to Stackoverflow. Does anyone here know what could cause this behavior? I'm using jqgrid 3.5.3, should that matter.

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• Drupal Customizing User Registration Form

  - by Asif Mulla

  Hi All, I am newbie in Drupal 6. I am looking for customizing User registration form. Apparently found that while adding user using Admin login allows registration form to have fields like email address, username, password,confirm password, etc with validations. But when anonymous use wants to register, then only fields like email address and username are displayed. I tried with Profile module available. But now how could I add some fields (password, confirm password, terms & condition check and receive news letter check box)and behavior (password, confirm password validation etc.)? If I am adding such fields they are also get visible in AdminAdd user form resulting duplicate fields like Password,Confirm password. Could you please suggest me how can I do this? I tried googling but confused me a lot as I am beginner to Drupal.

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• SELinux, Fedora, and Trusted Applet crashing?

  - by Stefan Kendall

  For some reason, if I run Firefox 3.5.x under Fedora 11 with SELinux enabled, my browser crashes when I attempt to embed the applet dynamically. Under Windows, Ubuntu, and Mac, the user is prompted to trust the signer and then trust the executing java applet, but under Fedora, I never see this prompt. If I disable SELinux, I get NO prompting, and the applet embeds without any notice whatsoever! Remembering that trusted applets can execute user programs and manipulate user data, this becomes quite a nightmare. Has anyone else had to deal with SELinux and Fedora/SuSE/Linux and trusted applets before? If so, how did you overcome this broken behavior?

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• Git tutorial: Understanding git pull and branches (using a specific example repo)

  - by dreftymac

  Backround: Suppose I have the following Git URLs (hosted on github) http://github.com/mikl/drupal.git git://github.com/mikl/drupal.git (Git read-only) I am interested in having a local copy of this repository so I can pratice working with branches in git and see how my local working tree can change depending on which branch I am working with. Questions: To get started, I set up a local directory and do git clone git://github.com/mikl/drupal.git ... Will this clone all of the branches? Or will it only clone master? The web front-end for github gives me a "drop down" menu that allows me to switch branches ... Does changing this drop-down actually change which branch I will be grabbing when I run git clone? If I want a new copy of this repository on my local machine, but I am interested in only two branches of this repository and I want to ignore all the rest, what command do I use to ensure I clone only those two branches and nothing else (assume one of the branches is master)?

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• How do I change a Git remote HEAD to point to something besides "master"

  - by jhs

  Short version: How do I set a Git remote's HEAD ref to point to something besides "master"? My project has a policy not to use a "master" branch (all branches are to have meaningful names). Furthermore, the canonical master repository is only accessible via ssh://, with no shell access (like GitHub or Unfuddle). My problem is that the remote repository still has a HEAD reference to refs/heads/master, but I need it to point to a different branch. This is causing two problems: When cloning the repo, there this, warning: remote HEAD refers to nonexistent ref, unable to checkout. That's confusing and inconvenient. The web-based code browser depends on HEAD as a basis for browsing the tree. I need HEAD to point to a valid branch, then.

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• python socket.recv/sendall call blocking

  - by fsm

  Hi everyone. This post is incorrectly tagged 'send' since I cannot create new tags. I have a very basic question about this simple echo server. Here are some code snippets. client while True: data = raw_input("Enter data: ") mySock.sendall(data) echoedData = mySock.recv(1024) if not echoedData: break print echoedData server while True: print "Waiting for connection" (clientSock, address) = serverSock.accept() print "Entering read loop" while True: print "Waiting for data" data = clientSock.recv(1024) if not data: break clientSock.send(data) clientSock.close() Now this works alright, except when the client sends an empty string (by hitting the return key in response to "enter data: "), in which case I see some deadlock-ish behavior. Now, what exactly happens when the user presses return on the client side? I can only imagine that the sendall call blocks waiting for some data to be added to the send buffer, causing the recv call to block in turn. What's going on here? Thanks for reading!

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• Using interface classes and non-virtual interface idiom in C++

  - by andreas buykx

  Hi all, In C++ an interface can be implemented by a class with all its methods pure virtual: class IFoo { public: virtual void method() = 0; }; Now I want to implement this interface by a hierarchy of classes: class FooBase : public IFoo // implement interface IFoo { public: void method(); // calls methodImpl; private: virtual void methodImpl(); }; For the class hierarchy I would like to use the non-virtual interface (NVI) idiom, to deny derived classes the possibility of overriding the common behavior implemented in FooBase::method(), but it seems that all derived classes have the opportunity to override the FooBase::method() because it is declared in the interface class. Is my observation correct? And if so are there other options to both use interface classes and the NVI idiom?

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• Binding Linq To Entities query results to a datagridview

  - by Nickson

  I just started playing with Linq to entities in a windows forms application and am not understanding one behavior that looks so simple though. If i type code below, i get ReadOnly records in my dataGridView Dim x = From n in Table1 _ Select n.FirstName, n.LastName, N.Department DataGridView1.DataSource = x But if i type the following code, i get editable rows in my dataGridView Dim x = From n in Table1 _ Select n DataGridView1.DataSource = x So, basically if i specify the column names to select and databind to my DataGridView1, the rows are readonly but if i do not specify the column names and databind to the DataGridView, the rows are editable and i don't understand why.

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• Performance logging tips

  - by Germstorm

  I am developing large data collecting ASP.Net/Windows service application-pair that uses Microsoft SQL Server 2005 through LINQ2Sql. Performance is always the issue. Currently the application is divided into multiple larger processing parts, each logging the duration of their work. This is not detailed and does not help us with anything. It would be nice to have some database tables that contain statistics that the application itself collected from its own behavior. What logging tips and data structures do you recommend to spot the parts that cause performance problems?

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• ng-grid get filtered column count after filtering

  - by Ryan Langton

  I'm using ng-grid with filtering. Any time the filter updates I want to get the filtered item count. I have been able to do this using the filteredRows property of ngGrid. However I'm getting the rows BEFORE the filtering occurs and I want them AFTER the filtering occurs. Here is a plunker to demonstrate the behavior: http://plnkr.co/edit/onyE9e?p=preview Here is the code where filtering is occuring: $scope.$watch('gridOptions.filterOptions.filterText2', function(searchText, oldsearchText) { if (searchText !== oldsearchText) { $scope.gridOptions.filterOptions.filterText = "name:" + searchText + "; "; $scope.recordCount = $scope.gridOptions.ngGrid.filteredRows.length; } });

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• How to call a WCF singleton service within a WCF singleton service without hanging?

  - by Michael Hedgpeth

  I have two services, one that calls another. Both are marked as singletons as follows: [ServiceBehavior(InstanceContextMode = InstanceContextMode.Single, ConcurrencyMode = ConcurrencyMode.Multiple)] public class Service : IService And I set these up with a ServiceHost as follows: ServiceHost serviceHost = new ServiceHost(singletonElement); serviceHost.Open(); When the parent service tries to call the child service on the same machine, the parent service hangs, waiting for the child service. I'm already considering moving away from the singleton model, but is there anything wrong with my approach? Is there an explanation for this behavior and a way out of it?

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• Playing around with Eclipse features - Project files are now hidden?

  - by Daddy Warbox

  I don't even remember how, but somehow I managed to make all of my project's source files hidden in Eclipse's Package and Project Explorer panels. Go figure. 'Show Filtered Children (alt+click)' temporarily reveals the files, and only in Package Explorer can I double-click to reopen them from this view. They go back into hiding after I select another item, though. Plus, now I'm getting other annoyances, such as all of the folded non-hidden trees altogether expanding when I click on any item, and the entire file folder tree of my project now being shown in these panels (including my .svn subversion folders... which shouldn't be any of Eclipse's business, presently). Long story short, my Package/Project Explorers' just blew up on me, and I want to know how to fix this. Thanks in advance. P.S. What's a good guide I can use to learn my way around this silly contraption, anyway?

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• A tool to find and fix incomplete source code documentation

  - by Pekka

  I have several finished, older PHP projects with a lot of includes that I would like to document in javadoc/phpDocumentor style. While working through each file manually and being forced to do a code review alongside the documenting would be the best thing, I am, simply out of time constraints, interested in tools to help me automate the task as much as possible. The tool I am thinking about would ideally have the following features: Parse a PHP project tree and tell me where there are undocumented files, classes, and functions/methods (i.e. elements missing the appropriate docblock comment) Provide a method to half-way easily add the missing docblocks by creating the empty structures and, ideally, opening the file in an editor (internal or external I don't care) so I can put in the description. Optional: Automatic recognition of parameter types, return values and such. But that's not really required. The language in question is PHP, though I could imagine that a C/Java tool might be able to handle PHP files after some tweaking. Thanks for your great input!

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• How can I store data in a table as a trie? (SQL Server)

  - by Matt

  Hi, To make things easier, the table contains all the words in the English dictionary. What I would like to do is be able to store the data as a trie. This way I can traverse the different branches of the trie and return the most relevant result. First, how do I store the data in the table as a trie? Second, how do I traverse the tree? If it helps at all, the suggestion in this previous question is where this question was sparked from. Please make sure it's SQL we're talking about. I understood the Mike Dunlavey's C implementation because of pointers but can't see how this part (The trie itself) works in SQL. Thanks, Matt

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