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• Are there predifined styles for making arrow buttons in windows phone 7?

  - by Micah

  I want to make some buttons in my app that look like the common round buttons with the arrows found all over the win 7 apps. Anyone know where I can find resources for these? UPDATE Here's a great tutorial on creating round buttons in WP7. This is exactly what I was trying to do, but I will use the images mentioned by John Gardner below: http://blogs.msdn.com/b/priozersk/archive/2010/08/13/creating-round-button-for-wp7-part-1.aspx http://blogs.msdn.com/b/priozersk/archive/2010/08/14/creating-round-image-button-for-wp7-part-1.aspx Thakns!

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• Best way to integrate searching with pagination

  - by Vijay Choudhary

  I have a web application build on cakephp 2.x. I have integrated pagination on my data. Now i want to implement searching on that data also, and pagination should work according to search result. Now my question is: Should i use a form to post my search string. If so, then which method should i use, GET or POST. OR, should i use javascript window.location method, and append the search string to it. If we use this method then search string can append more than once to url. Or any other best way to implement this. Can anybody give the best solution for this as it is a common task for each application to have.

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• Gradient boosting predictions in low-latency production environments?

  - by lockedoff

  Can anyone recommend a strategy for making predictions using a gradient boosting model in the <10-15ms range (the faster the better)? I have been using R's gbm package, but the first prediction takes ~50ms (subsequent vectorized predictions average to 1ms, so there appears to be overhead, perhaps in the call to the C++ library). As a guideline, there will be ~10-50 inputs and ~50-500 trees. The task is classification and I need access to predicted probabilities. I know there are a lot of libraries out there, but I've had little luck finding information even on rough prediction times for them. The training will happen offline, so only predictions need to be fast -- also, predictions may come from a piece of code / library that is completely separate from whatever does the training (as long as there is a common format for representing the trees).

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• exactly what does rake db:migrate do?

  - by happythenewsad

  Does rake db:migrate only add new migrations, or does it drop all migrations/changes and build everything new? I think rake is throwing an error because it is trying to access a table attribute in migration 040 that was deleted in migration 042. somehow my DB and rake are out of synch and I want to fix them. for you experts out there - is it common for rake to get out of synch with migrations? how can I avoid this (no, I do not hand-edit my schema or rake files).

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• SQL: Interrupting a query

  - by NoozNooz42

  I've worked on a project using a proprietary non-SQL DB where queries could be interrupted and in the codebase there were quite some spots where that functionnality was used and made perfect sense (for example to stop a long running query that gets cancelled by the user, or when a more recent query takes place and renders the previous query obsolete, etc.) and I realized I never really saw that kind of "interrupted queries" previously and thought it could make a good SO question (several questions, but they're all related to exactly the same thing): can SQL queries be interrupted? is this part of the SQL standard? if it's not part of the SQL standard, which SQL DBs allow queries to be interrupted (any example most welcome)? is it common to interrupt a DB query (SQL or not) which you'll know you won't care about the result anymore? (in the codebase I've worked on, it sure helps lighten the server's load)

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• Multiple Concurrent Changes Using SVN, GIT, and CVS

  - by KlaxSmashing

  At work, we are using SVN, CVS, and GIT because there any many projects that were started at various times. Anyway, a common sequence that occurs is as follows: Working on task A, making changes to project Has new task B, some bug or functionality needs to be done on project, independent of task A but may affect same set of files Check in task B Check in task A Unfortunately, what I do at this time is two maintain 2 working copies of each project. So I can always work on task B from a clean copy. As you can imagine, this is wasteful and also, does not scale well (task C, D, E, etc.) For each of these versioning systems, are there commands that can help me do the following: "Save" task A, reverting working copy to current repository Work on task B, check in changes "Restore" task A changes back to working copy

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• Way of knowing who called a singleton - objective C

  - by Cyril

  Hello, I am designing a game with several levels. I have a CCLayer defined as a singleton (called MasterScene) where I handle the pause page, transition page, player's score banner,... all the things common to all levels. So in each level, when the user pushes the pause button, a call is made to the singleton to display the CClayer corresponding to the pause page. My problem is that I want to know who called the singleton (which level) t. Is there a way of doing that ? Thanks

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• JMS On demand Support Active MQ with Spring

  - by user345275

  Hi Team I am involving in SMS Gate way project. The Very Base function is our system have couple of Customers They will send their request to our gateway in a form of XML. Those request is Process first and send it to a common out bound JMS(ActiveMQ 5.3 ) There is an listener running on which should be capable of doing the following 1. Retrive Bunch of Messages(Let say 5 ) on retrieval. 2. The retival should be on demand .It means ,once the listeners triggers only those bunch of message should return . Guys i really need ur help.If you have any idea please help me ou

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• Installed service starting and then stopping immediatly

  - by djerry

  Hey guys, I am trying to install a service with a setup project. So through a normal setup/msi file, the service should be installed in services. So it works, but when i press start, i get the error/fault shown in the picture below. Does anyone know what causes it and most of all how i can solve it? I've read the message, but can't seem to find the origin. I don't know the most common things that would cause this error. Thanks in advance. ps: Other post is not helping to solve the problem

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• Distribution of many small classes

  - by Moo-Juice

  Hi All, I have a base class called EventArgs. Derived from this are many, many specializations that represent event arguments for a particular kind of event. Consumers of these events may need some, many, or very few of these argument classes. My question is, would you provide a header file for each type (e.g, 50+ header files for the varying ones), would you try to group them in to families and have a 'common' header file for those, or would you throw caution to the window and throw them in to one easy-of-use header file that can just be included? Another approach might be to have 50 header files, and then I could introduce some "family" header files that included particular ones. Not sure about the naming conventions for these kinds of things so it is obvious what is where. I know there may not be a hard and fast rule, but wondering what other developers have done when they find themselves writing many little classes. Thanks in advance.

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• [Javascript] Retrieve a URL of a frame

  - by Ricky

  Hi, guys: If I get a link <a href="/Users/ChangePassword.aspx" target="mainFrame"> in fraTopMenu, what (1) javascript can I add to get the current mainFrame's URL upon clicking the link and (2) append the URL to the querystrings? <frameset rows="60,*" cols="*" frameborder="no" border="0" framespacing="0"> <frame src="/Common/Manager/TopMenu.aspx" name="fraTopMenu" scrolling="no" noresize="noresize" id="fraTopMenu" title="" /> <frameset rows="*" cols="185,*" framespacing="0" frameborder="no" border="0"> <frame src="..." name="leftFrame" id="leftFrame" title="" /> <frame src="..." name="mainFrame" id="mainFrame" title="" /> </frameset> </frameset> Thank you.

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• Continue Drupal processing after page send.

  - by David

  I need to do some additional processing after a Drupal page has been sent. I know I could fire a background shell command, but I need the current Drupal execution context to be maintained. I've spent a lot of time looking, but I can't find any documentation in this regard. This is surprising because it must surely be a common requirement. The only real idea I have is to fire up Drupal (again) via a shell command (exec, etc) and supply it with a pseudo path which would invoke the continued processing. But this seems unnecessarily complex/wasteful. Any pointers greatly appreciated, tks.

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• objective-c - calling one constructor from another

  - by synic

  Say you had the following two constructors: - (id)initWithTitle:(NSString *)title; - (id)initWithTitle:(NSString *)title page:(NSString *)page; The second constructor is no different from the first, except that it sets up the member variable "page". Since it basically has to do the same thing, is there a way to call the first one from the second one to reduce code duplication, or do you have to set up a third method to do the common tasks? I'm talking about something similar to this, though I doubt this will work: - (id)initWithTitle:(NSString *)_title { if(self = [super init]) { self.title = _title; } return self; } - (id)initWithTitle:(NSString *)_title page:(NSString *)_page { if(self = [self initWithTitle:_title]) { self.page = _page; } return self; }

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• I'm maintaining a java class that's 40K lines long.. problem?

  - by Billworth Vandory

  This may be a subjective question leading to deletion but I would really like some feedback. Recently, I moved to another very large enterprise project where I work as a C++ developer. I was aghast to find most classes in the project are anywhere from 8K to 50K lines long with methods that are 1K to 8K lines long. It's mostly business logic dealing with DB tables and data management, full of conditional statements to handle the use cases. Are classes this large common in large enterprise systems? I realize without looking at the code it's hard to make a determination, but have you ever worked on a system with classes this large?

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• Is it possible to get the current request that is being served by node.js?

  - by user420504

  I am using express.js. I have a need to be able to log certain request data whenever someone tries to log a message. For this I would like to create a helper method like so function log_message(level, message){ winston.log(level, req.path + "" + message); } I would then use the method like so. exports.index = function(req, res){ log_message("info", "I'm here"); } Note that I am not passing the req object to the log_message function. I want that to be transparently done so that the log_message API user does not need to be aware of the common data that is being logged. Is there a way to achieve this with express.js/node.js. Is the request object available from a global variable of some sort?

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• What Android version to target?

  - by Richard Eng

  I'm about to write my first Android app. It's a fairly basic app that doesn't use any special features beyond being able to schedule notifications and read/write image files to the device's local storage. Reaching the broadest audience is my top priority. If I target Android 1.5, is the app guaranteed to run fine all the way up to ICS? Should I target Android 2.1, which seems to be the new baseline for common phones in use? Since the app is fairly basic, if I target ICS, would it run on versions going all the way back to 2.1? Maybe this is a stupid question.

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• Can hash tables really be O(1)

  - by drawnonward

  It seems to be common knowledge that hash tables can achieve O(1) but that has never made sense to me. Can someone please explain it? A. The value is an int smaller than the size of the hash table, so the value is its own hash, so there is no hash table but if there was it would be O(1) and still be inefficient. B. You have to calculate the hash, so the order is O(n) for the size of the data being looked up. The lookup might be O(1) after you do O(n) work, but that still comes out to O(n) in my eyes. And unless you have a perfect hash or a large hash table there are probably several items per bucket so it devolves into a small linear search at some point anyway. I think hash tables are awesome, but I do not get the O(1) designation unless it is just supposed to be theoretical.

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• centering image vertically in all resolutions

  - by gnomixa

  I need to be able to center the image vertically for all the common resolutions. A lot of ppl here on SO have already asked this question before, and 90% of then give this tutorial http://www.jakpsatweb.cz/css/css-vertical-center-solution.html as an answer. However, when viewed at my 1280 by 1024 res monitor in FF, it's not centered. And worse yet, it breaks horribly in IE7. So, it's definitely NOT the answer. Am I chasing the impossible dream? The solution has to work for FF and IE 6/7 the solution can be anything that would work, though being a bit of a purist, I would prefer a div over table:)

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• How would you find the height of objects given an image?

  - by Ram Bhat

  Heyguys.. This isn't exactly a programming question exactly. I just want to know what your approach would be to a common problem in Digital image processing. Lets say you have an image of a a few trees in say jpg format. How would you go about finding the heights of each of these trees. The photo is the only input you have. I want to know the approaches you have not code. So it doesnt matter if your answers are vague, or non DIP-ish.

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• Java inheritance question

  - by user247866

  So I have 3 classes. Abstract class A Class B extends class A independent Class C In class D that contains the main method, I create a list of instances of class B List<B> b = method-call();` // the method returns a list of instances of class B Now in class C I have one method that is common to both A and B, and hence I don't want to duplicate it. I want to have one method that takes as input an instance of class A, as follows: public void some-method(LIst<A> a) However, when I do: C c = new C(). c. some-method(b) I get an error that some-method is not applicable for the argument List, instead it's expecting to get List. Is there a good way to fix this problem? Many thanks!

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• Some tables mixed together

  - by DJPython

  Hello. I have 2 different tables in my database. They have some variables common and some different. For example: Table1: ID Date Name Address Fax Table2: ID Date Name e-mail Telephone number I want to display data together sorted by date & ID but from both tables. For example, first displayed will be the newest record from first table, but the second one will be the record from another table posted right after first one. Hope everybody understand, sorry for my English. Cheers.

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• Run ajaxed javascript

  - by user1905698

  I know this has been covered a few times, but I'm completely a noob when it comes to javascript so I have no idea what I'm doing. I am running a javascript that sends variables to a php file and that info is ajaxed into the current page using innerhtml. Here is that part of the code... `function givingHistory(dyear,did) { var divname="giving" + dyear; $.ajax({ url: 'finance/givinghistory.php', type: 'POST', data: { year: dyear, id: did }, success: function(givedata) { document.getElementById(divname).innerHTML = givedata; } }); } ` In the givedata function response from the php file there is a call to another javascript function that is already loaded in my common .js file (so both javascript functions are loaded when the page loads). How do I get the onClick that is added via innerhtml to work? Inside the php file, I check to see if id = a php session variable. If it does it spits out the text that includes the onClick.

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• mod_perl2 send original requested url

  - by spoier

  Hello all, I have a mod_perl module to intercept the http response fase but I just want to intercept it and satisfy that request... In other words, I want to get the request and return what the client requested... I have something like this: use strict; use Apache2::RequestRec (); # for $r->content_type use Apache2::RequestIO (); # for $r->puts use Apache2::Const -compile => qw(:common); sub handler { my $r = shift; $r->content_type('text/html'); return Apache2::Const::OK; } 1; Apparently it doesn't work...

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• .net File.Copy very slow when copying many small files (not over network)

  - by Guavaman

  I'm making a simple folder sync backup tool for myself and ran into quite a roadblock using File.Copy. Doing tests copying a folder of ~44,000 small files (Windows mail folders) to another drive in my system, I found that using File.Copy was over 3x slower than using a command line and running xcopy to copy the same files/folders. My C# version takes over 16+ minutes to copy the files, whereas xcopy takes only 5 minutes. I've tried searching for help on this topic, but all I find is people complaining about slow file copying of large files over a network. This is neither a large file problem nor a network copying problem. I found an interesting article about a better File.Copy replacement, but the code as posted has some errors which causes problems with the stack and I am nowhere near knowledgeable enough to fix the problems in his code. Are there any common or easy ways to replace File.Copy with something more speedy?

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• @MustOverride annotation?

  - by Harrypotter2k5

  In .NET, one can specify a "mustoverride" attribute to a method in a particular superclass to ensure that subclasses override that particular method. I was wondering whether anybody has a custom java annotation that could achieve the same effect. Essentially what i want is to push for subclasses to override a method in a superclass that itself has some logic that must be run-through. I dont want to use abstract methods or interfaces, because i want some common functionality to be run in the super method, but more-or-less produce a compiler warning/error denoting that derivative classes should override a given method.

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