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  • empty() returning TRUE on object's non-empty property

    - by Michal M
    I've got a very weird and unexpected problem. empty() is returning TRUE on a non-empty property for a reason unknown to me. class MyObject { private $_property; public function __construct($property) { $this->_property = $property; } public function __get($name) { $priv_name = "_{$name}"; if (isset($this->$priv_name)) { return $this->$priv_name; } else { return NULL; } } } $obj = new MyObject('string value'); echo $obj->property; // Output 'string value' echo empty($obj->property); // Output 1 (means, that property is empty) Would this mean, that the __get() magic function is not called when using empty()? btw. I'm running PHP version 5.0.4

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  • Does a servlet knows the encoding of the sent form that specified using http-equiv?

    - by Daziplqa
    Does a servlet knows the encoding of the sent form that specified using http-equiv? When I specify an encoding of a POSTed form using http-equiv like that: <HTML> <head> <meta http-equiv='Content-Type' content='text/html; charset=gb2312'/> </head> <BODY > <form name="form" method="post" > <input type="text" name="v_rcvname" value="????"> </form> </BODY> </HTML> And then at the servlet I use the method, request.getCharacterEncoding() I got null ! So, Is there a way that I can tell the server that I am encoding the data in some char encoding??

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  • How to release audio properly? (AVAudioPlayer)

    - by Aluminum
    Hello everyone! I need help with my iOS application ^^,. I want to know if I'm releasing AVAudioPlayer correctly. MyViewController.h #import <UIKit/UIKit.h> @interface MyViewController : UIViewController { NSString *Path; } - (IBAction)Playsound; @end MyViewController.m #import <AVFoundation/AVAudioPlayer.h> #import "MyViewController.h" @implementation MyViewController AVAudioPlayer *Media; - (IBAction)Playsound { Path = [[NSBundle mainBundle] pathForResource:@"Sound" ofType:@"wav"]; Media = [[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:Path] error:NULL]; [Media play]; } - (void)dealloc { [Media release]; [super viewDidUnload]; } @end

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  • How can i return List of directories instead of url's?

    - by user1741587
    I have this function : private List<string> getLinks(HtmlAgilityPack.HtmlDocument document) { List<string> mainLinks = new List<string>(); var linkNodes = document.DocumentNode.SelectNodes("//a[@href]"); if (linkNodes != null) { foreach (HtmlNode link in linkNodes) { var href = link.Attributes["href"].Value; if (href.StartsWith("http://") == true || href.StartsWith("https://") == true || href.StartsWith("www") == true) // filter for http { mainLinks.Add(href); } } } return mainLinks; } Its getting one url and return list of url's. Instead i want that the function will get a directory for example c:\ And it will return me a List of all directories in c:\ Not subsirectories just the directories in c:\ in my case it should be a List with a 14 directories. Meaning in each index in the List a directory. How can i do it ? Tried with Directory and DirectoryInfo but i just got messed up.

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  • Is an object still connected to a list after FirstOrDefault?

    - by Cynthia
    Here's my code: Event thisEvent = (from i in list where (i.eventID == eventID) select i).FirstOrDefault(); if (thisEvent != null) { thisEvent.eventResolved = resolved; thisEvent.eventSequence.Add(item); } "list" is a collection of IEnumerable, i.e. IEnumerable<Event> list; What I'm wondering is: after creating thisEvent using FirstOrDefault, is thisEvent still connected to list? In other words, when I change the two properties, eventResolved and eventSequence, is "list" actually changed, or is thisEvent just some totally disconnected copy of an item in "list"?

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  • Background audio not working in windows 8 store / metro app

    - by roryok
    I've tried setting background audio through both a mediaElement in XAML <MediaElement x:Name="MyAudio" Source="Assets/Sound.mp3" AudioCategory="BackgroundCapableMedia" AutoPlay="False" /> And programmatically async void setUpAudio() { var package = Windows.ApplicationModel.Package.Current; var installedLocation = package.InstalledLocation; var storageFile = await installedLocation.GetFileAsync("Assets\\Sound.mp3"); if (storageFile != null) { var stream = await storageFile.OpenAsync(Windows.Storage.FileAccessMode.Read); _soundEffect = new MediaElement(); _soundEffect.AudioCategory = AudioCategory.BackgroundCapableMedia; _soundEffect.AutoPlay = false; _soundEffect.SetSource(stream, storageFile.ContentType); } } // and later... _soundEffect.Play(); But neither works for me. As soon as I minimise the app the music fades out

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  • crash in the handler that moves up a treenode in a treeview c#

    - by voodoomsr
    i have a event handler that moves the selected treenode up. I don't know why is crash in the line with comented. treeviewdocxml is a treeview object, from System.Windows.Forms treeViewDocXml.BeginUpdate(); TreeNode sourceNode = treeViewDocXml.SelectedNode; if (sourceNode.Parent == null) { return; } if (sourceNode.Index > 0) { sourceNode.Parent.Nodes.Remove(sourceNode); sourceNode.Parent.Nodes.Insert(sourceNode.Index - 1, sourceNode); //HERE CRASH } treeViewDocXml.EndUpdate();

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  • Authenticating on TFS 2010

    - by keynan21
    Hi, I'm having trouble authenticating as a specific user on MS Team Foundation Server. In older versions it would look like: teamFoundationCredential = new System.Net.NetworkCredential("<USERNAME>", "<PASSWORD>", "<DOMAIN>"); TeamFoundationServer tfs = new TeamFoundationServer("http://mars:8080/", teamFoundationCredential); Can some one tell me the equivilent for the 2010 version. So far I have: ICredentialsProvider cred = null; tfs = TfsTeamProjectCollectionFactory.GetTeamProjectCollection(new Uri("http://asebeast.cpsc.ucalgar.ca:8080/tfs/DefualtCollection")); tfs.EnsureAuthenticated(); Thanks

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  • Why doesn't jquery validation plugin's remote attribute work for me?

    - by Pandiya Chendur
    I use jquery validation plugin and the remote attribute works with emailId but not with mobileNo? var validator = $("#addform").validate({ rules: { Name: "required", MobileNo: { required: true, minlength: 10, remote: '<%=Url.Action("getClientMobNo", "Clients") %>' }, Address: "required" }, messages: { Name: "please provide a client name", MobileNo: { required: "Please provide a mobile phone no", rangelength: jQuery.format("Enter at least {0} characters"), remote: jQuery.format("This MobileNo is already in use") }, Address: "please provide client address" }, A null value is passed to my controller action.. Any suggestion... public JsonResult getClientMobNo(string mobno) { JsonResult result = new JsonResult(); string status = clirep.getClientMobNo(Convert.ToInt64(mobno)); if (status == "Mobile No already exists") { result.Data = false; } else { result.Data = true; } return result; }

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  • Why is this UL and inline JS giving errors during HTML validation?

    - by thor
    I've just run the homepage of a site I'm working on through the w3c HTML validator and it's come back with 3 errors and 2 warnings. I've taken a look at them but can't see why they would be causing a problem. I've pasted them in below (I've removed URL's/strings etc as the site isn't quite ready to be made public yet). This is being validated against XHTML Transitional by the way. The UL comes back with the following error: end tag for "ul" which is not finished <ul id='tabs'></ul> <ul id='tabs'> <li> <a href="/en/folder/folder/search?categories[]=cat1" class="tab1" title="tab_title"> <img alt="img_alt" src="img_src" /> <span> tab1_text </span> </a> </li> <li> <a href="/en/folder/folder/search?categories[]=cat2" class="tab2" title="tab_title"> <img alt="img_alt" src="img_src" /> <span> tab2_text </span> </a> </li> <li> <a href="/en/folder/folder/search?categories[]=cat3" class="tab3" title="tab_title"> <img alt="img_alt" src="img_src" /> <span> tab3_text </span> </a> </li> <li> <a href="/en/folder/folder/search?categories[]=cat4" class="tab4" title="tab_title"> <img alt="img_alt" src="img_src" /> <span> tab4_text </span> </a> </li> <li> <a href="/en/folder/folder/search?categories[]=cat5" class="tab5" title="tab_title"> <img alt="img_alt" src="img_src" /> <span> tab5_text </span> </a> </li> <li> <a href="/en/folder/folder/search?categories[]=cat6" class="tab6" title="tab_title"> <img alt="img_alt" src="img_src" /> <span> tab6_text </span> </a> </li> <li> <a href="/en/folder/folder/search?categories[]=cat7" class="tab7" title="tab_title"> <img alt="img_alt" src="img_src" /> <span> tab7_text </span> </a> </li> <li> <a href="/en/folder/folder/search?categories[]=cat8" class="tab8" title="tab_title"> <img alt="img_alt" src="img_src" /> <span> tab8_text </span> </a> </li> </ul> For the inline javascript, I'm getting 2 errors and 2 warnings all for the same thing - I have a simple if statement with && and the validator appears to be seeing this as HTML rather than javascript: character "&amp;" is the first character of a delimiter but occurred as data and xmlParseEntityRef: no name <script type='text/javascript'> if (weather_data != null && weather_data['data'] != null){ display_weather(); } </script> The javascript is placed just before the body close tag at the end of the document. If you need to see the full source then let me know and I can send it over.

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  • Ajax, not sending querystring data

    - by Tom Gullen
    var http = false; // Creates xmlhttp object if (navigator.appName == "Microsoft Internet Explorer") { http = new ActiveXObject("Microsoft.XMLHTTP"); } else { http = new XMLHttpRequest(); } http.onreadystatechange = function() { if (http.readyState == 4) { alert(http.responseText); } } // Functions to calculate optimum layout etc. function compute() { var statusSpan = document.getElementById("cwStatus"); document.getElementById("fader").style.display = ""; document.getElementById("computingWait").style.display = ""; statusSpan.innerHTML = "<b>Status:</b> Realigning sattelites" http.open("GET", "alg.aspx?cr=8&cc=7&sq=3,3", true); http.send(null); } This code sort of works, but the querystring data isn't being passed through. It keeps returning an ASPX error page which only happens when there is no querystring data. Thanks for any help

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  • WCF: operations with out parameters are not supported

    - by Budda
    I've created a simple WCF service inside of WebApplication project. [ServiceContract(Namespace = "http://my.domain.com/service")] [AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)] public class MyService { [OperationContract] public string PublishProfile(out string enrollmentId, string registrationCode) { enrollmentId = null; return "Not supported"; } built - everything is compiled successfully After that I've tried to open service in browser, I've got the following error: Operation 'PublishProfile' in contract 'MyService' specifies an 'out' or 'ref' parameter. Operations with 'out' or 'ref' parameters are not supported Can't I use 'out' parameters? What is wrong here? Thanks

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  • DotNetOpenAuth I need some help please

    - by Nate Gates
    I know this has been posted before, but never really answered, I'm using the DotNetOpenAuth to try and do GoogleID login, and every time I do details = OResponse.GetExtension<ClaimsResponse>(); I always, always, always get back null, I don't get whats the point of the GoogleID if I can't get back any information, I would think at the very least I would get an email address, so I could associate it other login information in my databse. I just don't understand could really use some help, Im probably just looking at openID in the wrong way. I'm using ASP.NET and looking to use openID/Facebook as my sole means of logging in users, I really don't want to mess with membership roles, or extra junk that ASP.NET likes to add.

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  • ListView created programmatically - emptyView doesn't show

    - by Yorick
    I've created custom ListView programmatically, and set view to show when ListAdapter is empty but nothing shows on the screen in that case, what can be wrong? public PlayerList(Context context, Activity activity) { super(context); mParent = activity; setOnItemClickListener( new OnItemClickListener() { public void onItemClick(AdapterView<?> parent, View view, int position, long id) { ... } }; List<PlayerInfo> players; players = getPlayerList(); // here size of players == 0 setAdapter(new PlayersAdapter(this.getContext(), R.id.player_name, players)); LayoutInflater vi = (LayoutInflater)mParent.getSystemService(Context.LAYOUT_INFLATER_SERVICE); emptyView = vi.inflate(R.layout.empty_view, null); // emptyView is View, and member of PlayerList this.setEmptyView(emptyView); }

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  • Reading http file on url

    - by Nkunzis
    I am trying to read an xml file on an http url. "Unexpected end of file from server" keeps on coming . the page is password protected, I would like to know if I am properly giving in my url authentication details. I tried with non protected pages and I can read them properly. Here is my code: URL url = new URL("http://username:[email protected]:0000/test.xml"); URLConnection yc = url.openConnection(); BufferedReader in = new BufferedReader(new InputStreamReader(yc.getInputStream())); String inputLine; while ((inputLine = in.readLine()) != null) System.out.println(inputLine); in.close();

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  • FETCH INTO doesn't raise an exception if the set is empty, does it?

    - by Cade Roux
    Here is some actual code I'm trying to debug: BEGIN OPEN bservice (coservice.prod_id); FETCH bservice INTO v_billing_alias_id, v_billing_service_uom_id, v_summary_remarks; CLOSE bservice; v_service_found := 1; -- An empty fetch is expected for some services. EXCEPTION WHEN OTHERS THEN v_service_found := 0; END; When the parametrized cursor bservice(prod_id) is empty, it fetches NULL into the three variables and does not throw an exception. So whoever wrote this code expecting it to throw an exception was wrong, right? The comment seems to imply that and empty fetch is expected and then it sets a flag for later handling, but I think this code cannot possibly have been tested with empty sets either. Obviously, it should use bservice%NOTFOUND or bservice%FOUND or similar.

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  • How do I find out if an object can be Invoke()'d?

    - by Jurily
    Consider the following class: public class Event<T> { public delegate void Handler<t>(t msg); private event Handler<T> E; public void connect(Delegate handler) { E += delegate(T msg) { object target = handler.Target; if (Invokable(target) { target.BeginInvoke(handler, new object[] { msg }); } }; } public void emit(T msg) { if ( E != null ) { E(msg); } } private static bool Invokable(object o) { // magic } } How do I implement Invokable(), and what else do I need for this code to compile?

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  • sqlite & python - only pulls the first result

    - by pencilNero
    This is pretty strange (admitedly, this is my first attempt with python / sqlite), but I can seem to get all of the rows if I do a fetchAll(), but other than that - no matter what I try, always ends up in the db only returning the first row - the second iteration stops because a null is returned. Wondering if there is something wrong with how I am coding this up in python? The db seems ok.. con = sqlite3.connect('backup.db') con.row_factory = sqlite3.Row cur = con.cursor() cur.execute('select * from tb1;') for row in cur: try: # row = dataCur.fetchone() #if row == None: break print type(row) print ' Starting on: %i' % row[0] cleaner = Cleaner(scripts=True, remove_tags=['img'], embedded=True) try: cleaned = cleaner.clean_html(row[2]) #data stored in second col cur.execute('update tb1 set data = ? where id = ?;', (cleaned, row[0])) except AttributeError: print 'Attribute error' print ' Ended on: %i' % row[0] except IOError: print 'IOexception'

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  • MySQL range date overlap check

    - by Glide
    This table is used to store sessions CREATE TABLE session ( id int(11) NOT NULL AUTO_INCREMENT , start_date date , end_date date ); INSERT INTO session (start_date, end_date) VALUES ("2010-01-01", "2010-01-10") , ("2010-01-20", "2010-01-30") , ("2010-02-01", "2010-02-15") ; We don't want to have conflict between ranges Let's say we need to insert a new session from 2010-01-05 to 2010-01-25 We would like to know the conflicting session(s). Here is my query: SELECT * FROM session WHERE TRUE AND ("2010-01-05" BETWEEN start_date AND end_date OR "2010-01-25" BETWEEN start_date AND end_date OR "2010-01-05" >= start_date AND "2010-01-25" <= end_date ) ; Here is the result: +----+------------+------------+ | id | start_date | end_date | +----+------------+------------+ | 1 | 2010-01-01 | 2010-01-10 | | 2 | 2010-01-20 | 2010-01-30 | +----+------------+------------+ Is there a better practice way to get that ?

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  • Hidden Features of Google Guice

    - by Jon
    Google Guice provides some great dependency injection features. I came across the @Nullable feature recently which allows you to mark constructor arguments as optional (permitting null) since Guice does not permit these by default: e.g. public Person(String firstName, String lastName, @Nullable Phone phone) { this.firstName = checkNotNull(firstName, "firstName"); this.lastName = checkNotNull(lastName, "lastName"); this.phone = phone; } http://code.google.com/p/google-guice/wiki/UseNullable What are the other useful features of Guice (particularly the less obvious ones) that people use?

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  • Silverlight + Facebook DTK API -> SecurityException ONLY on Mac and Firefox...

    - by santiago
    I have a SilverLight application which throws a security exception when running on FireFox for Macs. The exact same application works fine on Windows (Internet Explorer, FireFox, Chrome, Opera) and on Safari for Macs. I am using the Facebook Developer Toolkit available on Codeplex. The exception is thrown when the user launches the App. At that time I use the SilverLight Facebook API to run some queries using: facebookAPI.Fql.MultiqueryAsync(queries, QueryAppUsersCompleted, dispatcher); In my callback function QueryAppUsersCompleted, the FacebookException does not evaluate to null, and its innerException property has a SecurityException in it. Any help would be tremendously appreciated.

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  • Is the "message" of an exception culturally independent?

    - by Ray Hayes
    In an application I'm developing, I have the need to handle a socket-timeout differently from a general socket exception. The problem is that many different issues result in a SocketException and I need to know what the cause was. There is no inner exception reported, so the only information I have to work with is the message: "A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond" This question has a general and specific part: is it acceptable to write conditional logic based upon the textual representation of an exception? Is there a way to avoid needing exception handling? Example code below... try { IPEndPoint endPoint = null; client.Client.ReceiveTimeout = 1000; bytes = client.Receive(ref endPoint); } catch( SocketException se ) { if ( se.Message.Contains("did not properly respond after a period of time") ) { // Handle timeout differently.. } }

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  • How can I get an error or a warning from a PreparedStatement?

    - by Geo
    I had an update like this: update table set col1=?,col2=?,col3=? where col4=?; and I filled it up like this: statement.setString(1,"some_value"); statement.setString(2,"some_value"); statement.setString(3,"some_value"); and I forgot to add a fourth value.I did a executeUpdate and of course nothing happened to the database. I spent about 1 hour debugging it, to see where it goes wrong. I then modified my code to print the SQLWarning object returned by the getWarnings method. It always returned null. I even modified the code to the buggy state it was, before I set the fourth parameter, and still no warning. Does anyone know how one can get an error/warning? If it matters, my Connection is set to autoCommit.

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  • jQuery mobile 1.1.0 slider: JS-object properties access?

    - by Koniak
    EDIT: This could be seen as a pure javascript objects question. The code can be found here: jquery.mobile-1.1.0.js I need to access properties of a jQuery mobile JS-object but is not sure how that is possible. In the jquery.mobile-1.1.0.js and mobile.slider is the following (see extend on line 5967): $.widget( "mobile.slider", $.mobile.widget, { ... _create: function() { ... $.extend( this, { slider: slider, handle: handle, valuebg: valuebg, dragging: false, beforeStart: null, userModified: false, mouseMoved: false }); Primarily the property I would like to read is the "dragging". I know i can execute the methods using: $("#slider").slider("refresh") Is there a similair way to access the properties? Thanks

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  • A good way to implement useable Callbacks in C++

    - by Marcel J.
    I have a custom Menu class written in C++. To seperate the code into easy-to-read functions I am using Callbacks. Since I don't want to use Singletons for the Host of the Menu I provide another parameter (target) which will be given to the callback as the first parameter (some kind of workaround for the missing "this" reference). Registration-Signature AddItem(string s, void(*callback)(void*,MenuItem*), void* target = NULL) Example of a Registration menu->AddItem(TRANSLATE, "translate", &MyApp::OnModeSelected); Example of a Handler /* static */ void MyApp::OnModeSelected(void* that, MenuItem* item) { MyApp *self = (MyApp*)that; self->activeMode = item->text; } Is there anything one could consider dirty with this approach? Are there maybe better ones?

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