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• JSoup - Select only one listobject

  - by Zyril

  I'm trying to extract some certain data from a website using JSoup and Java. So far I've been successful in what I'm trying to achieve. <ul class="beverageFacts"> <li><span>Årgång</span><strong>**2009**&nbsp;</strong></li> I want to extract what is inside the ** in the above HTML. I can do this by using the code that follows in JSoup: doc.select("ul.beverageFacts li:lt(1) strong"); I'm using the lt(1) because there are several more list items following that I want to omit. Now to my problem; there's an optional information tab on the site I'm extracting data from, and it also has a class called "beverageFacts". My code will at the moment extract that data too, which I don't want it to do. The code is further down in the source of the website, and I've tried to use the indexer :lt(1) here aswell, but it wont work. <div id="beverageMoreFacts" style="display: block"> <ul class="beverageFacts"><li class="half"> <span> Färg</span><strong> Ljusgul färg.</strong> My overall result is that I extract "2009 Ljusgul färg." instead of only "2009". How can I write my code so it will only extract the first part, which it succesfully does, and omits the rest? EDIT: I get the same result using: doc.select("ul.beverageFacts li:eq(0) strong"); Thanks, Z

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• Cannot set property X of undefined - programatically created element

  - by Dave

  I am working on a class to create a fairly complex custom element. I want to be able to define element attributes (mainly CSS) as I am creating the elements. I came up with the below function to quickly set attrs for me given an input array: // Sample array structure of apply_settings //var _button_div = { // syle : { // position: 'absolute', // padding : '2px', // right : 0, // top : 0 // } //}; function __apply_settings(__el,apply_settings){ try{ for(settingKey in apply_settings){ __setting = apply_settings[settingKey]; if(typeof(__setting)=='string'){ __el[settingKey] = __setting; }else{ for(i in __setting){ __el[settingKey][i] = apply_settings[settingKey][i]; } } } }catch(ex){ alert(ex + " " + __el); } } The function works fine except here: function __draw_top(){ var containerDiv = document.createElement('div'); var buttonDiv = document.createElement('div'); __apply_settings(containerDiv,this.settings.top_bar); if(global_settings.show_x) buttonDiv.appendChild(__create_img(global_settings.images.close)); containerDiv.appendChild(buttonDiv); __apply_settings(buttonDiv,this.settings.button_div); return containerDiv; } The specific section that is failing is __apply_settings(buttonDiv,this.settings.button_div); with the error "Cannot set property 'position' of undefined". So naturally, I am assuming that buttonDiv is undefined.. I put alert(ex + " " + __el); in __apply_settings() to verify what I was working with. Surprisingly enough, the element is a div. Is there any reason why this function would be working for containerDiv and not buttonDiv? Any help would be greatly appreciated :) {EDIT} http://jsfiddle.net/Us8Zw/2/

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• Installer downloads wrong version of sql server compact edition

  - by MartinStettner

  I have a Visual Studio setup project which defines SQL Server 3.5 as prerequisite. I also set it up to download the required files from the source (i.e. Microsoft). My project uses Sql Server 3.5 SP1. If I create the installer on my development machine, everything works fine. When the installer is built on the build machine, it downloads the "old" 3.5 version (without SP1) which makes my application crash. (If I install SP1 on the test system manually, the application just works find...) I installed both Visual Studio 2008 SP1 and Sql Server 3.5 SP1 on the build machine. This seems to be some issue with the prerequisite packages but they look the same on the development and the build machines. Any idea what goes wrong here? EDIT Ok, I rechecked it and the package descriptions are'nt the sames. Oddly enough, the .msi file is the right one on the build machine but the old one on the development machine, so I guess if I tried to build an installer which includes the prerequisites, I'd get the wrong result on the dev machine and the right one on the build machine. Extended question: How are the prerequesite packages (under C:\Program Files\Microsoft SDKs\Windows\v6.0A\Bootstrapper\Packages\SQL Server Compact Edition) meant to be updated to SP1? Is the SQL Server CE SP1 installer responsible for this?

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• Overlapping template partial specialization when wanting an "override" case: how to avoid the error?

  - by user173342

  I'm dealing with a pretty simple template struct that has an enum value set by whether its 2 template parameters are the same type or not. template<typename T, typename U> struct is_same { enum { value = 0 }; }; template<typename T> struct is_same<T, T> { enum { value = 1 }; }; This is part of a library (Eigen), so I can't alter this design without breaking it. When value == 0, a static assert aborts compilation. So I have a special numerical templated class SpecialCase that can do ops with different specializations of itself. So I set up an override like this: template<typename T> struct SpecialCase { ... }; template<typename LT, typename RT> struct is_same<SpecialCase<LT>, SpecialCase<RT>> { enum { value = 1 }; }; However, this throws the error: more than one partial specialization matches the template argument list Now, I understand why. It's the case where LT == RT, which steps on the toes of is_same<T, T>. What I don't know is how to keep my SpecialCase override and get rid of the error. Is there a trick to get around this? edit: To clarify, I need all cases where LT != RT to also be considered the same (have value 1). Not just LT == RT.

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• How to remove the "button" effect for a menu item (WPF)

  - by Sorin Comanescu

  Hi, When the mouse is over a menu item (first level) it displays a 3D button effect. How can this be removed? Thanks. EDIT: Tried <Style TargetType="MenuItem"> <Style.Triggers> <Trigger Property="IsMouseOver" Value="True"> <Setter Property="BorderBrush" Value="Transparent"> <Setter Property="BorderThickness" Value="0"> </Trigger> </Style.Triggers> </Style> with no effect. The menu XAML: <Window x:Class="UCWPF.Window3" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:conv="clr-namespace:UCWPF.Converters" Title="Window3" Height="600" Width="600" Background="{StaticResource WindowBackgroundBrush}" > <StackPanel Style="{StaticResource WindowContainerStyle}"> <Menu> <MenuItem Header="New" Icon="{StaticResource ImageExport}" /> <MenuItem Header="Open" Icon="{StaticResource ImageOpen}" /> <MenuItem Header="Save" Icon="{StaticResource ImageSave}" /> <MenuItem Header="Export" Icon="{StaticResource ImageExport}" /> </Menu> ... And here's the screenshot:

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• LINQ to Sql: Insert instead of Update

  - by Christina Mayers

  I am stuck with this problems for a long time now. Everything I try to do is insert a row in my DB if it's new information - if not update the existing one. I've updated many entities in my life before - but what's wrong with this code is beyond me (probably something pretty basic) I guess I can't see the wood for the trees... private Models.databaseDataContext db = new Models.databaseDataContext(); internal void StoreInformations(IEnumerable<EntityType> iEnumerable) { foreach (EntityType item in iEnumerable) { EntityType type = db.EntityType.Where(t => t.Room == item.Room).FirstOrDefault(); if (type == null) { db.EntityType.InsertOnSubmit(item); } else { type.Date = item.Date; type.LastUpdate = DateTime.Now(); type.End = item.End; } } } internal void Save() { db.SubmitChanges(); } Edit: just checked the ChangeSet, there are no updates only inserts. For now I've settled with foreach (EntityType item in iEnumerable) { EntityType type = db.EntityType.Where(t => t.Room == item.Room).FirstOrDefault(); if (type != null) { db.Exams.DeleteOnSubmit(type); } db.EntityType.InsertOnSubmit(item); } but I'd love to do updates and lose these unnecessary delete statements.

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• JSF don't find component in view root with the form id

  - by kenzokujpn

  I have a t:inputFileUpload inside the form, in the html of the display page the id of this component is form:inputFile but when I tried to get the component from the view root using "form:inputFile" the return is null, but when the "form:" is removed the return is the component. The component don't set the value in my managed bean, someone have this problem? EDIT: <h:form id="form" enctype="multipart/form-data"> <t:inputFileUpload id="inputFile" size="40" value="#{managedBean.inputFile}"/> </h:form> In the managed bean: private UploadedFile inputFile; with the gets and sets provided by Eclipse. //This method scans the view root and returns the component with the id passed as parameter findComponentInRoot("form:inputFile"); This returns null, but when I use: //This method scans the view root and returns the component with the id passed as parameter findComponentInRoot("inputFile"); The return is the component I'm looking for, but when I use the View Source in Internet Explorer the id of this component is "form:inputFile". I don't know if this is related, but the component don't set the value in my managed bean and it's strange the fact that the id of the component is different from the HTML source. I'm using JSF 1.2 Mojarra. Someone else has this problem? Or know why this happens?

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• Is it possible for a function called from within an object to have access to that object's scope?

  - by Elliot Bonneville

  I can't think of a way to explain what I'm after more than I've done in the title, so I'll repeat it. Is it possible for an anonymous function called from within an object to have access to that object's scope? The following code block should explain what I'm trying to do better than I can: function myObj(testFunc) { this.testFunc = testFunc; this.Foo = function Foo(test) { this.test = test; this.saySomething = function(text) { alert(text); }; }; var Foo = this.Foo; this.testFunc.apply(this); } var test = new myObj(function() { var test = new Foo(); test.saySomething("Hello world"); }); When I run this, I get an error: "Foo is not defined." How do I ensure that Foo will be defined when I call the anonymous function? Here's a jsFiddle for further experimentation. Edit: I am aware of the fact that adding the line var Foo = this.Foo; to the anonymous function I pass in to my instance of myObj will make this work. However, I'd like to avoid having to expose the variable inside the anonymous function--do I have any other options?.

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• python can't start a new thread

  - by Giorgos Komnino

  I am building a multi threading application. I have setup a threadPool. [ A Queue of size N and N Workers that get data from the queue] When all tasks are done I use tasks.join() where tasks is the queue . The application seems to run smoothly until suddently at some point (after 20 minutes in example) it terminates with the error thread.error: can't start new thread Any ideas? Edit: The threads are daemon Threads and the code is like: while True: t0 = time.time() keyword_statuses = DBSession.query(KeywordStatus).filter(KeywordStatus.status==0).options(joinedload(KeywordStatus.keyword)).with_lockmode("update").limit(100) if keyword_statuses.count() == 0: DBSession.commit() break for kw_status in keyword_statuses: kw_status.status = 1 DBSession.commit() t0 = time.time() w = SWorker(threads_no=32, network_server='http://192.168.1.242:8180/', keywords=keyword_statuses, cities=cities, saver=MySqlRawSave(DBSession), loglevel='debug') w.work() print 'finished' When the daemon threads are killed? When the application finishes or when the work() finishes? Look at the thread pool and the worker (it's from a recipe ) from Queue import Queue from threading import Thread, Event, current_thread import time event = Event() class Worker(Thread): """Thread executing tasks from a given tasks queue""" def __init__(self, tasks): Thread.__init__(self) self.tasks = tasks self.daemon = True self.start() def run(self): '''Start processing tasks from the queue''' while True: event.wait() #time.sleep(0.1) try: func, args, callback = self.tasks.get() except Exception, e: print str(e) return else: if callback is None: func(args) else: callback(func(args)) self.tasks.task_done() class ThreadPool: """Pool of threads consuming tasks from a queue""" def __init__(self, num_threads): self.tasks = Queue(num_threads) for _ in range(num_threads): Worker(self.tasks) def add_task(self, func, args=None, callback=None): ''''Add a task to the queue''' self.tasks.put((func, args, callback)) def wait_completion(self): '''Wait for completion of all the tasks in the queue''' self.tasks.join() def broadcast_block_event(self): '''blocks running threads''' event.clear() def broadcast_unblock_event(self): '''unblocks running threads''' event.set() def get_event(self): '''returns the event object''' return event

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• Issue calling superclass method in subclass constructor

  - by stormin986

  I get a NullPointerException calling a Superclass Method in Subclass Inner Class Constructor... What's the Deal? In my application's main class (subclass of Application), I have a public inner class that simply contains 3 public string objects. In the parent class I declare an object of that inner class. public class MainApplication extends Application { public class Data { public String x; public String y; public String z; } private Data data; MainApplication() { data = new Data() data.x = SuperClassMethod(); } } After I instantiate the object in the constructor, I get a runtime error when I try to assign a value in the inner class with a superclass method. Any idea what's up here?? Can you not call superclass methods in the subclass constructor? ** Edit ** Original question was about inner class member assignment in outer class constructor. Turned out the issue was with calling a superclass method in the class's constructor. It was giving me a null pointer exception. Thus, the question has changed.

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• Thread-safe data structure design

  - by Inso Reiges

  Hello, I have to design a data structure that is to be used in a multi-threaded environment. The basic API is simple: insert element, remove element, retrieve element, check that element exists. The structure's implementation uses implicit locking to guarantee the atomicity of a single API call. After i implemented this it became apparent, that what i really need is atomicity across several API calls. For example if a caller needs to check the existence of an element before trying to insert it he can't do that atomically even if each single API call is atomic: if(!data_structure.exists(element)) { data_structure.insert(element); } The example is somewhat awkward, but the basic point is that we can't trust the result of "exists" call anymore after we return from atomic context (the generated assembly clearly shows a minor chance of context switch between the two calls). What i currently have in mind to solve this is exposing the lock through the data structure's public API. This way clients will have to explicitly lock things, but at least they won't have to create their own locks. Is there a better commonly-known solution to these kinds of problems? And as long as we're at it, can you advise some good literature on thread-safe design? EDIT: I have a better example. Suppose that element retrieval returns either a reference or a pointer to the stored element and not it's copy. How can a caller be protected to safely use this pointer\reference after the call returns? If you think that not returning copies is a problem, then think about deep copies, i.e. objects that should also copy another objects they point to internally. Thank you.

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• Delphi trace tool

  - by Max

  I was wondering if there's a tool or a component for Delphi that can trace method execution line by line and create a log file. With this kind of tool it is easy to compare how method performs on two sets of input data by comparing two log files. EDIT: Let's say there is a function 10: function MyFunction(aInput: Integer): Integer; 11: begin 12: if aInput 10 then 13: Result := 10 14: else 15: Result := 0; 16: end; I'm looking for a tool that would give the log which whould be similar to the following: When aInput parameter is 1: Line 10: 'function MyFunction(aInput: Integer): Integer;' Line 11: 'begin' Line 12: 'if aInput 10 then' Line 15: 'Result := 0;' Line 16: 'end;' and when aInput parameter is 11: Line 10: 'function MyFunction(aInput: Integer): Integer;' Line 11: 'begin' Line 12: 'if aInput 10 then' Line 13: 'Result := 10;' Line 16: 'end;' The only information that should be required by the tool is the function name. It's like stepping through the method under debugger, but in an automatic manner with logging every line of code.

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• Persistant Http client connections in java

  - by Akusete

  I am trying to write a simple Http client application in Java and am a bit confused by the seemingly different ways to establish Http client connections, and efficiently re-use the objects. Current I am using the following steps (I have left out exception handling for simplicity) Iterator<URI> uriIterator = someURIs(); HttpClient client = new DefaultHttpClient(); while (uriIterator.hasNext()) { URI uri = uriIterator.next(); HttpGet request = new HttpGet(uri); HttpResponse response = client.execute(request); HttpEntity entity = response.getEntity(); InputStream s = entity.getContent(); processStream (); s.close(); } In regard to the code above, my questions is: Assuming all URI's are pointing to the same host (but different resources on that host). What is the recommended way to use a single http connection for all requests? And how do you close the connection after the last request? --edit: Also what is the difference between using uri.openConnection(), versus HttpClient? Which is preferable, and what other methods exist?

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• EOFException in ObjectInputStream Only happens with Webstart not by java(w).exe ?!

  - by Houtman

  Hi, Anyone familiar with the differences in starting with Webstart(javaws.exe) compared to starting the app. using java.exe or javaw.exe regarding streams ? This is the exception which i ONLY get when using Webstart : java.io.EOFException at java.io.ObjectInputStream$PeekInputStream.readFully(Unknown Source) at java.io.ObjectInputStream$BlockDataInputStream.readShort(Unknown Source) at java.io.ObjectInputStream.readStreamHeader(Unknown Source) at java.io.ObjectInputStream.<init>(Unknown Source) at fasttools.jtools.dss.api.core.remoting.thinclient.RemoteSocketChannel.<init>(RemoteSocketChannel.java:77) This is how i setup the connections on both sides //==Server side== //Thread{ Socket mClientSocket = cServSock.accept(); new DssServant(mClientSocket).start(); //} DssServant(Socket socket) throws DssException { try { OutputStream mOutputStream = new BufferedOutputStream( socket.getOutputStream() ); cObjectOutputStream = new ObjectOutputStream(mOutputStream); cObjectOutputStream.flush(); //publish streamHeader InputStream mInputStream = new BufferedInputStream( socket.getInputStream() ); cObjectInputStream = new ObjectInputStream(mInputStream); .. } catch (IOException e) { .. } .. } //==Client side== public RemoteSocketChannel(String host, int port, IEventDispatcher eventSubscriptionHandler) throws DssException { cHost = host; port = (port == 0 ? DssServer.PORT : port); try { cSocket = new Socket(cHost, port); OutputStream mOutputStream = new BufferedOutputStream( cSocket.getOutputStream() ); cObjectOut = new ObjectOutputStream(mOutputStream); cObjectOut.flush(); //publish streamHeader InputStream mInputStream = new BufferedInputStream( cSocket.getInputStream() ); cObjectIn = new ObjectInputStream(mInputStream); } catch (IOException e) { .. } .. } Thanks [EDIT] Webstart console says: Java Web Start 1.6.0_19 Using JRE version 1.6.0_19-b04 Java HotSpot(TM) Client VM Server is running same 1.6u19

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• When downloading a file using FileStream, why does page error message refers to aspx page name, not

  - by StuperUser

  After building a filepath (path, below) in a string (I am aware of Path in System.IO, but am using someone else's code and do not have the opportunity to refactor it to use Path). I am using a FileStream to deliver the file to the user (see below): FileStream myStream = new FileStream(path, FileMode.Open, FileAccess.Read); long fileSize = myStream.Length; byte[] Buffer = new byte[(int)fileSize + 1]; myStream.Read(Buffer, 0, (int)myStream.Length); myStream.Close(); Response.ContentType = "application/csv"; Response.AddHeader("content-disposition", "attachment; filename=" + filename); Response.BinaryWrite(Buffer); Response.Flush(); Response.End(); I have seen from: http://stackoverflow.com/questions/736301/asp-net-how-to-stream-file-to-user reasons to avoid use of Response.End() and Response.Close(). I have also seen several articles about different ways to transmit files and have diagnosed and found a solution to the problem (https and http headers) with a colleague. However, the error message that was being displayed was not about access to the file at path, but the aspx file. Edit: Error message is: Internet Explorer cannot download MyPage.aspx from server.domain.tld Internet Explorer was not able to open this Internet site. The requested site is either unavailable or cannot be found. Please try again later. (page name and address anonymised) Why is this? Is it due to the contents of the file coming from the HTTP response .Flush() method rather than a file being accessed at its address?

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• How can I ceil the height of a div that has "display: table-cell"?

  - by eric01

  I am trying to vertically center a div inside another div, regardless of the size of both div's I am doing this: <div id='outer_div'> <div id='inner_div'></div> </div> The CSS is #outer_div { display: table-row; height: 200px; width: 200px } #inner_div { display: table-cell; vertical-align: middle; height: 500px; width: 500px } I put larger dimensions for the inner div on purpose. What happens is that even if I put a width of 1000px, the width of the innerdiv is ceiled at 200px because of the outer div's width (and this is what I want) But for the height, it is not ceiled and I would like it to be ceiled to the height of the outer div. What i want is the innerdiv to remain at the same size as the outer_div, no matter what height I give to outer_div in CSS. I basically want it to be the same size as its parent. EDIT: I only put text inside those div's. So let's say I have an outer div of 200px*200px (it has display: table-row), and the inner div is defined by css as 500px*500px and it has dummy text inside. My expected result is to have the inner div shrunk down to 200px*200px. It is successfully 'shrunk' by the outer div for the width, but NOT for the height. What I want is to have it shrunk on the height as well (so the inner div ajusts automatically in case I change the height of the outer div) How do I go about that?

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• Disable control in .aspx from Masterpage conditionally

  - by miccet

  Ok, this might be a bit weird, so I'll start with explaining what I'm trying to do. I have several masterpages for my site, and in they inherit each other. In the second of them (4 in total) I have a background image. Here comes the trick, I'd like to override this image from the final aspx page. I can't change the position of this image, it has to be in masterpage 2, since some pages uses that very page as masterpage. One idea I had was to create a ContentPlaceHolder next to the image and if there are any images in that (check in Page_Load) then the main image would be hidden. I did this with a recursive function, that finds the image by looping through the ContentPlaceHolder's controls. When I set the visibility property to false though, nothing happens. Any other ideas to how this could be done, or why the above doesn't work? Edit: It's not about changing items in the master pages, rather the other way around, that from the Masterpages codebehind dig down into the page that is displayed currently and see if it has controls in a specific ContentPlaceHolder.

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• Requirements for connecting to Oracle with JDBC?

  - by Lord Torgamus

  I'm a newbie to Java-related web development, and I can't seem to get a simple program with JDBC working. I'm using off-the-shelf Oracle 10g XE and the Eclipse EE IDE. From the books and web pages I've checked so far, I've narrowed the problem down to either an incorrectly written database URL or a missing JAR file. I'm getting the following error: java.sql.SQLException: No suitable driver found for jdbc:oracle://127.0.0.1:8080 with the following code: import java.sql.*; public class DatabaseTestOne { public static void main(String[] args) { String url = "jdbc:oracle://127.0.0.1:8080"; String username = "HR"; String password = "samplepass"; String sql = "SELECT EMPLOYEE_ID FROM EMPLOYEES WHERE LAST_NAME='King'"; Connection connection; try { connection = DriverManager.getConnection(url, username, password); Statement statement = connection.createStatement(); System.out.println(statement.execute(sql)); connection.close(); } catch (SQLException e) { System.err.println(e); } } } What is the proper format for a database URL, anyways? They're mentioned a lot but I haven't been able to find a description. Thanks! EDIT (the answer): Based on duffymo's answer, I got ojdbc14.jar from http://www.oracle.com/technology/software/tech/java/sqlj_jdbc/htdocs/jdbc_10201.html and dropped it in the Eclipse project's Referenced Libraries. Then I changed the start of the code to ... try { Class.forName("oracle.jdbc.driver.OracleDriver"); } catch (ClassNotFoundException e) { System.err.println(e); } // jdbc:oracle:thin:@<hostname>:<port>:<sid> String url = "jdbc:oracle:thin:@GalacticAC:1521:xe"; ... and it worked.

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• What constitutes a development environment, and how do you document it?

  - by Joel Coehoorn

  What items go into a software shop's development environment, how do you document it, and what processes do you follow to make changes? I thinking about this from the standpoint where I want to make it easier to bring new hires up to speed quickly by having all this on a checklist we follow when setting them up, and then while I'm at it making it easier for the new hires or existing team members to bring new powerful toolkits and ideas into the environment without disrupting things. I want to keep this platform agnostic, so even though I'm currently at a microsoft shop where Visual Studio would be assumed I'll go ahead and list compiler/IDE as one of the items: Here are some ideas for part 1: [edit]: I'm keeping this updated based on the better suggestions. Source Control access Issue/Bug/Project tracker System Documention, or references to find the system documentation in source control or in a wiki, including: build document/environment covered by this question design documents / technical notes Coding Style guidelines Deploy for review/testing/QA/staging/production procedures Licensing details for your tools and your product Team Calendar, including the project schedule(s), deadlines, vacation time, and support/on-call schedule (if required) compiler/IDE compiler/IDE extensions (things like source control plugins or visual studio add-ins) 3rd party SDKs/toolkits Database connection and tools Testing Frameworks Internal libraries communication tools (chat, wiki, etc) Static analysis tools (FxCop, FlawFinder, etc) Virtual machines (holding dev environment or for testing) Specialized editors (modeling, xml, etc) Other tools What else goes in this list, and how do you document it and vet changes?

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• After interruption, delayed audio route change notifications when recording

  - by Frank Shearar

  My iPhone application requires that I know when a user has/has not plugged in her headphones. That's easy. AudioSessionAddPropertyListener with a callback listening to kAudioSessionProperty_AudioRouteChange. I write logs with NSLog as things happen. User plugs the headphones in? Get a notification, and a line in the gdb console. User unplugs the headphones? Ditto. At the same time I'm sensing the noise level of the environment by starting a recording audio queue. This, too, works great: I can get the mic noise level and listen for audio route changes just fine. What I find is that after an interruption, and I've reactivated the audio session and restored the audio category to kAudioSessionCategory_RecordAudio, the audio route notifications go a bit haywire. When I plug in the headphones, I see no notification. When I unplug the headphones I see BOTH the "plugged in" notification AND the "unplugged" notification, in rapid succession. It's like the "plugged in" notification's delayed and, when the "unplugged" notification arrives, the queue of pending notifications is flushed. What am I doing wrong? How do I correctly restore the audio session to get timeous notifications? EDIT: iPhone OS 3.1.2, running on an iPhone 3G. I'm running a program compiled with the 3.0 SDK (from within XCode 3.1.2).

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• Return unordered list from hierarchical sql data

  - by Milan

  I have table with pageId, parentPageId, title columns. Is there a way to return unordered nested list using asp.net, cte, stored procedure, UDF... anything? Table looks like this: PageID ParentId Title 1 null Home 2 null Products 3 null Services 4 2 Category 1 5 2 Category 2 6 5 Subcategory 1 7 5 SubCategory 2 8 6 Third Level Category 1 ... Result should look like this: Home Products Category 1 SubCategory 1 Third Level Category 1 SubCategory 2 Category 2 Services Ideally, list should contain <a> tags as well, but I hope I can add it myself if I find a way to create <ul> list. EDIT 1: I thought that already there is a solution for this, but it seems that there isn't. I wanted to keep it simple as possible and to escape using ASP.NET menu at any cost, because it uses tables by default. Then I have to use CSS Adapters etc. Even if I decide to go down the "ASP.NET menu" route I was able to find only this approach: http://aspalliance.com/822 which uses DataAdapter and DataSet :( Any more modern or efficient way?

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• How does the CheckBox obtain it's respective drawables?

  - by alex2k8

  The CheckBox class extends the CompoundButton, but add nothing to it. But some how it obtains it's respective look. I found some declarations in Android sources, but wonder how they are mapped to CheckBox class? public class CheckBox extends CompoundButton { public CheckBox(Context context) { this(context, null); } public CheckBox(Context context, AttributeSet attrs) { this(context, attrs, com.android.internal.R.attr.checkboxStyle); } public CheckBox(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); } } Styles <style name="Theme"> <item name="checkboxStyle">@android:style/Widget.CompoundButton.CheckBox</item> </style> <style name="Widget.CompoundButton.CheckBox"> <item name="android:background">@android:drawable/btn_check_label_background</item> <item name="android:button">@android:drawable/btn_check</item> </style> EDIT: Probably I was not clear... I understand how the drawable assigned to Widget.CompoundButton.CheckBox style, but how this style assigned to CheckBox class? I see the ".CheckBox" in the style name, but is this naming convention really what makes the trick? If so, what are the rules? If I derive MyCheckBox from CompoundButton, can I just define the Widget.CompoundButton.MyCheckBox style and it will work?

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• Prevent box shadow from showing on a specific side

  - by kaile

  Is there any way to create a css box-shadow in which regardless of the blur value, the shadow only appears on the desired sides? For example if I want to create a div with shadows on left and right sides and no shadow on the top or bottom. The div is not absolutely positioned and its height is determined by the content. -- Edit -- @ricebowl: I appreciate your answer. Maybe you can help with creating a complete solution to fix the problems stated in my reply to your solution... My page setup is as follows: <div id="container"> <div id="header"></div> <div id="content"></div> <div id="clearfooter"></div> </div> <div id="footer"></div> And CSS like this: #container {width:960px; min-height:100%; margin:0px auto -32px auto; position:relative; padding:0px; background-color:#e6e6e6; -moz-box-shadow: -3px 0px 5px rgba(0,0,0,.8), 3px 0px 5px rgba(0,0,0,.8);} #header {height:106px; position:relative;} #content {position:relative;} #clearFooter {height:32px; clear:both; display:block; padding:0px; margin:0px;} #footer {height:32px; padding:0px; position:relative; width:960px; margin:0px auto 0px auto;}

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• Why rails app is redirecting unexpectedly instead of matching the route?

  - by ruevaughn

  I asked this question earlier and thought it was fixed, but it's not. Previous question here My problem is I am trying to set my routes so that when I type in localhost:3000/sites/admin It should redirect to localhost:3000/en/sites/admin here is my routes.rb file scope ":locale", locale: /#{I18n.available_locales.join("|")}/ do get "log_out" => "sessions#destroy", as: "log_out" get "log_in" => "sessions#new", as: "log_in" resources :sites, except: [:new, :edit, :index, :show, :update, :destroy, :create] do collection do get :home get :about_us get :faq get :discounts get :services get :contact_us get :admin get :posts end end resources :users resources :abouts resources :sessions resources :coupons resources :monthly_posts resources :reviews resources :categories do collection { post :sort } resources :children, :controller => :categories, :only => [:index, :new, :create, :new_subcategory] end resources :products do member do put :move_up put :move_down end end resources :faqs do collection { post :sort } end root :to => 'sites#home' match "/savesort" => 'sites#savesort' end match '', to: redirect("/#{I18n.default_locale}") match '*path', to: redirect("/#{I18n.default_locale}/%{path}") But as of right now, it redirects to /en/en/en/en/en/en/en/en/en/en/sites/admin (adds en until browser complains). Any thoughts why it keeps adding /en?

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• Getting the data inside the C# web service from Jsonified string

  - by gnomixa

  In my JS I use Jquery's $ajax functions to call the web service and send the jsonified data to it. The data is in the following format: var countries = { "1A": { id: "1A", name: "Andorra" }, "2B": { id: 2B name: "Belgium" }, ..etc }; var jsonData = JSON.stringify({ data: data }); //then $ajax is called and it makes the call to the c# web service On the c# side the web service needs to unpack this data, currently it comes in as string[][] data type. How do I convert it to the format so I can refer to the properties such as .id and .name? Assuming I have a class called Sample with these properties? Thanks! EDIT: Here is my JS code: var jsonData = JSON.stringify(countries); $.ajax({ type: 'POST', url: 'http://localhost/MyService.asmx/Foo', contentType: 'application/json; charset=utf-8', data: jsonData, success: function (msg) { alert(msg.d); }, error: function (xhr, status) { switch (status) { case 404: alert('File not found'); break; case 500: alert('Server error'); break; case 0: alert('Request aborted'); break; default: alert('Unknown error ' + status); } } }); inside c# web service I have: using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.Services; using System.Data; using System.Collections; using System.IO; using System.Web.Script.Services; [WebMethod] [ScriptMethod] public string Foo(IDictionary<string, Country> countries) { return "success"; }

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