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• List show/add/remove View

  - by Michael

  Looking for some best practices of UI list on iPhone which has item add/modify/delete functions. Please refer to some sample codes or articles to build user friendly interface. The main application is tab bar application and one of the tabs supposed to show item management. The item itself consisting of 3 text items, first one can be label, it's short, the rest if it's not terribly complicated I would like to show below with small font or show when user taps on item entering edit mode... Not sure how to design all this and which views to use.

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• How to copy an object by value, not by reference

  - by Blankman

  I want to make a copy of an object, then after some logic, re-assign the original object the value of the copy. example: User userCopy = //make a copy foreach(...) { user.Age = 1; user.ID = -1; UserDao.Update(user) user = userCopy; } I don't want a copy by reference, it has to be a copy by value. The above is just a sample, not how I really want to use it but I need to learn how to copy by value.

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• helper function not found in view

  - by cbrulak

  I'm following the instructions at: http://agilewebdevelopment.com/plugins/acts_as_taggable_on_steroids to add the tag cloud to my view: in the controller: class PostController < ApplicationController def tag_cloud @tags = Post.tag_counts end end I also added the tag_cloud method as a helper method in the controller and in the view: <% tag_cloud @tags, %w(css1 css2 css3 css4) do |tag, css_class| %> (line 1) <%= link_to tag.name, { :action => :tag, :id => tag.name }, :class => css_class %> (line2) <% end %> (line 3) However: 1) if I don't add the helper_method :tag_cloud in the controller I get a undefined method error for tag_cloud 2) if I do add the helper method I get: wrong number of arguments (2 for 0) on the same line 1 of my sample code above. Suggestions?

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• How to remove the <br> tag in my html string using HtmlAgilityPack in C#?

  - by Saravanan

  I have one HTML string and i am using HtmlAgilityPack for parsing html string. This is my html string <p class="Normal-P" style="direction: ltr; unicode-bidi: normal;"><span class="Normal-H">sample<br/></span> <span class="Normal-H">texting<br></span></p> This HTML string has <br> tag in two places.So, i want to remove both the tags... can you help me to remove all <br> tags in my html string...

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• jquery not working in mvc after publishing to server

  - by czuroski

  Hello, I've built an mvc application which contains some jquery code. When I run the app from my ide, everything works perfectly. When I publish to the server and open the page, the jquery does not work. I get object expected errors. Could this be due to my file mappings? here is a sample of my mapping in the app - <script type="text/javascript" href="../../Scripts/jquery-1.3.2.js"></script> I published the app to iis7 successfully, but the jquery is broken. I did publish to an application within an existing web site. Any thoughts?

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• PHP Magic methods not working

  - by user991047

  I am trying to create a registry class with magic __set and __get my class looks like class Registry { private $vars = array(); public function __set($key, $value) { $this->vars[$key] = $value; dump($key, $value); } public function __get($index) { $this->vars[$index]; } } but if i try to save some variable in registry class in gets only the $key the $value is alway NULL. here is the sample code how I am try to call this class $registry = new registry; $registry->router = $router; $registry->title = "Welcome ";

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• Writing Lucene StandardAnalyzer results to text file with OutputStreamWriter

  - by user3693192

  I'm getting ONLY the last result written to "outputStreamFile.txt". Can't figure out how to revise code so I can get ALL results written to text file. Sample input text: "1st line of text\n" "2nd line of text \n" Results in only 2nd line begin written (and not 1st line) as: "2nd line text\n" private static void analyze(String text) throws IOException { analyzer = new StandardAnalyzer(Version.LUCENE_30); Reader r = new StringReader(text); TokenStream ts = (TokenStream) analyzer.tokenStream("", r); TermAttribute term = ts.addAttribute(TermAttribute.class); File outfile = new File("C:\\Users\\Desktop\\outputStreamFile.txt"); FileOutputStream fileOutputStream = new FileOutputStream(outfile); OutputStreamWriter outputStreamWriter = new OutputStreamWriter(fileOutputStream, "UTF8"); while(ts.incrementToken()) { //System.out.print(term.term() + " "); outputStreamWriter.write(term.term().toString() + "\r\n"); } outputStreamWriter.close(); }

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• Input multiple file names in windows open file dialog box

  - by goodiet

  Windows 7 allows you to select multiple files to open at once by using ctrl or shift key. The "File Name" input field at the bottom of the dialog box would auto populate with the following sample: "aaa.txt" "bbb.txt" "ccc.txt" "ddd.txt" I have 14,000 files in a folder and I only need a range of files (approx 500). When I use the shift key to select a range of files, the "File Name" field auto populates all 500 file names. Windows would cut me off at the 260th character when I try to paste in a pre-generated string into the "File Name" field. Is there a way to bypass the 260 character limit so it would accept my entire string with 500 file names?

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• C++: FFMPEG and SDL resources

  - by advs89

  I'm looking for resources (preferably books, but websites are fine too) for using FFMPEG and/or SDL with C++. Stuff I'd like to be able to do (eventually): Decode and play videos in realtime to a QT widget (the QT part isn't a problem) Overlay text and images on the video (in realtime) Loop video Cross-fade from one video to another (in realtime) Some kind of DVD functionality LIVE sources? (i.e. webcam, stream, etc.) So far I've looked at (and consider helpful) the following resources: FFMPEG and SDL Tutorial by Dranger (extremely helpful) StackOverflow: ffmpeg C API documentation/tutorial (not a duplicate, btw) Sample code bundled with FFMPEG libraries (I'll try and update this list with anything helpful below) Thanks for any help... Also: Operating System is Windows (but maybe one day cross-platform) Also 2: Resources using alternatives are welcome too... i.e. DirectShow, VFW, etc.

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• How to check using a script if project is opened in XCode?

  - by delirus

  Hi, I'd like to introduce build number feature for my iPhone project and increase it automatically with every commit to my git repo. I plan to do it using Apple's agvtool, which recommends that project is not opened in XCode at the time So my questions are: 1) So far I know that I need to make an executable script from .git/hooks/pre-commit.sample. How to do the scripting to check if certain project is opened in XCode? 2) pre-commit.sh will be executed upon calling git commit with no args, so whenever someone will commit with -a option, I won't have my build number updated. Is there any way to workaround this? Cheers

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• Transponse the data from vertical to horizondal using vba

  - by raam

  I wants to popualte the data in MS-Access into Excel for this i am using VBA This is my code varConnection = "ODBC; DSN=MS Access Database;DBQ=D:\sample\table.accdb; Driver={Driver do Microsoft Access (*.accdb)}" varSQL = "SELECT * FROM LeftPanes" With ActiveSheet.QueryTables.Add(Connection:=varConnection, Destination:=ActiveSheet.Range("B4")) .CommandText = varSQL .Name = "Query-39008" .Refresh BackgroundQuery:=False End With Its working Properly it retrive data and display in the correct sheet my problem is that this code display the retrived date in vertically view i needs horizondal view. it is possible to display in horizondal view please any one guide me . Thanks in advance

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• Java: Allowing the child thread to kill itself on InterruptedException?

  - by Zombies

  I am using a ThreadPool via ExecutorService. By calling shutDownNow() it interrupts all running threads in the pool. When this happens I want these threads to give up their resources (socket and db connections) and simply die, but without continuing to run anymore logic, eg: inserting anything into the DB. What is the simplest way to achieve this? Bellow is some sample code: public void threadTest() { Thread t = new Thread(new Runnable() { public void run() { try { Thread.sleep(999999); } catch (InterruptedException e) { //invoke thread suicide logic here } } }); t.start(); t.interrupt(); try { Thread.sleep(4000); } catch (InterruptedException e) { } }

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• Does the "using" directive provide any benefit?

  - by Adam Drummond

  Is there a programmatic benefit to using a using statement? Notice the difference between this sample: using Application.Data; namespace Application.Web { public class SampleClass { public void SampleMethod() { List<Category> categories = CreateCategoriesData(); Category expected = categories[0]; ... ... } } } And this one: namespace Application.Web { public class SampleClass { public void SampleMethod() { List<Data.Category> categories = CreateCategoriesData(); Data.Category expected = categories[0]; ... ... } } }

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• Returning a recordcount from a subquery in a result set.

  - by KeRiCr

  I am attempting to return a rowcount from a subquery as part of a result set. Here is a sample that I've tried that didn't work: SELECT recordID , GroupIdentifier , count() AS total , (SELECT COUNT() FROM table WHERE intActingAsBoolean = 1) AS Approved FROM table WHERE date_format(Datevalue, '%Y%m%d') BETWEEN 'startDate' AND 'endDate' GROUP BY groupIdentifier What I'm attempting to return for 'Approved' is the number of records for the grouped value where intActingAsBoolean = 1. I have also tried modifying the where clause by giving the main query a table alias and applying an AND clause to match the groupidentifier in the subquery to the main query. None of these are returning the correct results. The query as written returns all records in the table where intActingAsBoolean = 1. This query is being run against a MySQL database.

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• modrewrite to another server if file/image is not found

  - by Traveling_Monk

  Hi I am working on a locally served copy of a remote site and I don't want to have to download all the images rtelated to the site so I thought i could come up with a mod_rewrite rule for to grab images from the remote server if the are not found this is the code that i have <IfModule mod_rewrite.c> RewriteEngine On RewriteCond %{REQUEST_FILENAME} -f [NC] RewriteRule ^/(.*\.(png|gif|jpg|jpeg)) https://www.exmple.com/$1 [NC,P,L] </IfModule> The page is still giving me 404's for images that are on the remote server, so this rule is not working. I do know that the htaccess is being processed because rules later in the IfModule mod_rewrite.c block are being used. (i simplified my code sample but this is the first rule in the IfModule mod_rewrite.c block)

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• Measure CPU performance via JS

  - by Nicholas Kyriakides

  A webapp has as a central component a relatively heavy algorithm that handles geometric operations. There are 2 solutions to make the whole thing accessible from both high-end machines and relatively slower mobile devices. I will use RPC's if i detect that the user machine is ''slow'' or else if i detect that the user machine can handle it OK, then i provide to the webapp the script to handle it client side. Now what would be a reliable way to detect the speed of the user machine? I was thinking of providing a sample script as a test when the page loads and detect the time it took to execute that. Any ideas?

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• How can I force a subscriber to be synchronized from a local snapshot?

  - by Brian

  Hello, I have a SQL 2005 server replicating(merge\push) to SQL 2005 and SQL 2000 servers. I have multiple subscribers spread througout the United states. I have set , @snapshot_in_defaultfolder = N'false', @alt_snapshot_folder = N'c:\snapshots\Merge\' (sample location). I take the snapshot from the publisher that is in the same location, 'c:\snapshots\Merge\', and copy it to the subscribers. I wanted to avoid applying the snapshot over the WAN but from the performance I am getting the synchronization is going over the WAN. Does anybody have any ideas how to make sure that I am using the local copy of the snapshot and not the copy at the publisher? Thanks

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• getting the value of a filter at an arbitrary time

  - by Andiih

  Context: I'm trying to improve the values returned by the iPhone CLLocationManager, although this is a more generally applicable problem. The key is that CLLocationManger returns data on current velocity as and when it feels like it, rather than at a fixed sample rate. I'd like to use a feedback equation to improve accuracy v=(k*v)+(1-k)*currentVelocity where currentVelocity is the speed returned by didUpdateToLocation:fromLocation: and v is the output velocity (and also used for the feedback element). Because of the "as and when" nature of didUpdateToLocation:fromLocation: I could calculate the time interval since it was last called, and do something like for (i=0;i<timeintervalsincelastcalled;i++) v=(k*v)+(1-k)*currentVelocity which would work, but is wasteful of cycles. Especially as I probably want timeintervalsincelastcalled to be measured as 10ths of a second. Is there a way to solve this without the loop ? i.e. rework (integrate?) the formula so I put an interval into the equation and get the same answer as I would have by iteration ?

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• Joomla forwarding code to the View...is this the correct way to do it?

  - by jax

  Here are some sample methods from my Controller class. Now when the user clicks the New button $task=add is sent to the Controller and the add() method is called. As you can see it does not really do anything, it just creates a url and forwards it off to the correct view. Is this the correct way of doing things in the MVC pattern? /** * New button was pressed */ function add() { $link = JRoute::_('index.php?option=com_myapp&c=apps&view=editapp&cid[]=', false); $this->setRedirect($link); } /** * Edit button was pressed - just use the first selection for editing */ function edit() { $cid = JRequest::getVar( 'cid', array(0), '', 'array' ); $id = $cid[0]; $link = JRoute::_("index.php?option=com_myapp&c=apps&view=editapp&cid[]=$id", false); $this->setRedirect($link); }

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• Why does casting a NaN to a long yield a valid result?

  - by brainimus

  In the sample code below I am dividing by zero which when I step through it with the debugger the (dividend / divisor) yields an Infinity or NaN (if the divisor is zero). When I cast this result to a long I get a valid result, usually something like -9223372036854775808. Why is this cast valid? Why doesn't it stop executing (throw an exception for example) rather than assign an arbitrary value? double divisor = 0; double dividend = 7; long result = (long)(dividend / divisor);

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• Sorting a value pair in Javascript

  - by Bradley M. Davis

  I must be missing the proper term or else I'm sure I could find the answer by searching... in any case, here's what I want to do. Through javascript, I get four variables (A, B, C, and D) that I would like to sort, and still keep track of the variable name (since it's encoded with meaning information). Sample Data: A = 2; B = 1; C = 4; D = 3; What I need to do now is sort them in value order (4,3,2,1) such that I can actually know the variable name ordering (C,D,A,B).

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• Asp.Net gridview customization

  - by Kunal

  Hi If you go to http://ifdefined.com/btnet/bugs.aspx you will see a long list of sample data in an asp.net gridview control. What I need to do is something similar. I need to implement the filtering system by placing dropdown controls with dynamic values on the headers and then filter the record according to them. If you look carefully they are filtering the data based on multiple drodown selections as well. Kindly help me out. Any kind of input is highly appreciated. Thanks in advance for your time.

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• Lazy sequence or recur for mathematical power function?

  - by StackedCrooked

  As an exercise I implemented the mathematical power function. Once using recur: (defn power [a n] (let [multiply (fn [x factor i] (if (zero? i) x (recur (* x factor) factor (dec i))))] (multiply a a (dec n)))) And once with lazy-seq: (defn power [a n] (letfn [(multiply [a factor] (lazy-seq (cons a (multiply (* a factor) factor))))] (nth (multiply a a) (dec n)))) Which implementation do you think is superior? I truly have no idea.. (I'd use recur because it's easier to understand.) I read that lazy-seq is fast because is uses internal caching. But I don't see any opportunities for caching in my sample. Am I overlooking something?

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• Storing API keys in Android, is obfustication enough?

  - by fredley

  I'm using the Dropbox API. In the sample app, it includes these lines: // Replace this with your consumer key and secret assigned by Dropbox. // Note that this is a really insecure way to do this, and you shouldn't // ship code which contains your key & secret in such an obvious way. // Obfuscation is good. final static private String CONSUMER_KEY = "PUT_YOUR_CONSUMER_KEY_HERE"; final static private String CONSUMER_SECRET = "PUT_YOUR_CONSUMER_SECRET_HERE"; I'm well aware of the mantra 'Secrecy is not Security', and obfuscation really only slightly increases the amount of effort required to extract the keys. I disagree with their statement 'Obfustication is good'. What should I do to protect the keys then? Is obfustication good enough, or should I consider something more elaborate?

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• Building Outline Data in Google Maps (Android)

  - by scotty.hoag

  I'm working on an Android project that focuses on knowing how close you are to buildings. I wanted to know if there is some way to extract the geographic information about the outlines of buildings out of the Google Maps API. Thanks. EDIT: The functionality I'm looking for is similar to what's going on in this app. (Click the link near the top of the page that says "View Live Sample".) http://resources.esri.com/help/9.3/arcgisserver/apis/javascript/gmaps/help/google_start.htm#topics/samples/identify_features.html

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