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  • Recursively find files/directories within a directory

    - by enchilada
    I want to use enumeratorAtURL:includingPropertiesForKeys:options:errorHandler: to do this, as I'm coding under Snow Leopard. I know how to use this method. However, as for my purposes it's not adequate to load the contents lazily, I have the following question: How can I create an object hierarchy (of, say, the custom FileOrDirectory class with the standard children,count,isLeaf attributes) from the information I load from the enumeratorAtURL: method? I need to load this data beforehand, and show it in an outline view, for my purposes.

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  • Which framework exceptions should every programmer know about ?

    - by Thibault Falise
    I've recently started a new project in C#, and, as I was coding some exception throw in a function, I figured out I didn't really know which exception I should use. Here are common exceptions that are often thrown in many programs : ArgumentException ArgumentNullException InvalidOperationException Are there any framework exceptions you often use in your programs ? Which exceptions should every .net programmer know about ? When do you use custom exception ?

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  • supress warning for generated c# code

    - by soren.enemaerke
    I have turned on "Treat warnings as errors" for my VS project which mean that I get errors for missing documentation (nice reminder for this particular project). However, part of the code is generated by a custom tool which does not insert xml documentation so I'm looking for away to ignore the missing xml documentation for the generated code only, not for the entire project. I have no influence on the actual file generated and cannot really insert anything in the file (as it is regenerated frequently by the tool) so I looking for something existing outside the generated file (the classes that are generated are partial, if that helps)

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  • How to create a true singleton in java?

    - by rjoshi
    I am facing a problem with my singleton when used across multiple class loaders. E.g Singleton accessed by multiple EJBs. Is there any way to create a singleton which has only one instance across all class loader? I am looking for pure java solution either using custom class loader or some other way.

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  • Slackware 12 - installed cairo but cannot be seen

    - by piro
    Hi. I wanted to install gtk+ 2.16.5, so i also installed glib, pango and cairo. All seemed to work well, except for cairo. At first I got an error while configuring: Requested 'cairo = 1.6' but version of cairo is 1.4.12 I installed the newest version of cairo without any problems, i rebooted the comp and when i started the configure again the same thing happened and it showed me the same error. I also can see this: Consider adjusting the PKG_CONFIG_PATH environment variable if you installed software in a non-standard prefix. Alternatively, you may set the environment variables BASE_DEPENDENCIES_CFLAGS and BASE_DEPENDENCIES_LIBS to avoid the need to call pkg-config. See the pkg-config man page for more details. Can someone help me ? Thanks.

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  • Array not showing in Jlist but filled in console

    - by OVERTONE
    Hey there. been a busy debugger today. ill give ths short version. ive made an array list that takes names from a database. then i put the contents of the arraylist into an array of strings. now i want too display the arrays contents in a JList. the weird thing is it was working earlier. and ive two methods. ones just a little practice too make sure i was adding to the Jlist correctly. so heres the key codes. this is the layout of my code. variables constructor methods in my variables i have these 3 defined String[] contactListNames = new String[5]; ArrayList<String> rowNames = new ArrayList<String>(); JList contactList = new JList(contactListNames); simple enough. in my constructor i have them again. contactListNames = new String[5]; contactList = new JList(contactListNames); //i dont have the array list defined though. printSqlDetails(); // the prinSqldetails was too make sure that the connectionw as alright. and its working fine. fillContactList(); // this is the one thats causing me grief. its where all the work happens. // fillContactListTest(); // this was the tester that makes sure its adding to the list alright. heres the code for fillContactListTest() public void fillContactListTest() { for(int i = 0;i<3;i++) { try { String contact; System.out.println(" please fill the list at index "+ i); Scanner in = new Scanner(System.in); contact = in.next(); contactListNames[i] = contact; in.nextLine(); } catch(Exception e) { e.printStackTrace(); } } } heres the main one thats supposed too work. public void fillContactList() { int i =0; createConnection(); ArrayList<String> rowNames = new ArrayList<String>(); try { Statement stmt = conn.createStatement(); ResultSet namesList = stmt.executeQuery("SELECT name FROM Users"); try { while (namesList.next()) { rowNames.add(namesList.getString(1)); contactListNames =(String[])rowNames.toArray(new String[rowNames.size()]); // this used to print out contents of array list // System.out.println("" + rowNames); while(i<contactListNames.length) { System.out.println(" " + contactListNames[i]); i++; } } } catch(SQLException q) { q.printStackTrace(); } conn.commit(); stmt.close(); conn.close(); } catch(SQLException e) { e.printStackTrace(); } } i really need help here. im at my wits end. i just cant see why the first method would add to the JList no problem. but the second one wont. both the contactListNames array and array list can print fine and have the names in them. but i must be transfering them too the jlist wrong. please help p.s im aware this is long. but trust me its the short version.

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  • sudo su - username while keeping ssh key forwarding

    - by Florian Schulze
    If I have a server A into which I can login with my ssh key and I have the ability to "sudo su - otheruser", I lose key forwarding, because the env variables are removed and the socket is only readable by my original user. Is there a way I can bridge the key forwarding through the "sudo su - otheruser", so I can do stuff on a server B with my forwarded key (git clone and rsync in my case)? The only way I can think of is adding my key to authorized_keys of otheruser and "ssh otheruser@localhost", but that's cumbersome to do for every user and server combination I may have.

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  • JQuery username validation - Ajax call

    - by Denise
    Hi, I am currently using JQuery's validation plugin for basic form validation such as required fields. I want to add functionality so that when the user types in the username field, an ajax call is triggered to check whether the username is already taken. My requirements are: Preferably integrate with JQuery Validation plugin, rather than writing a custom function I want the lookup to occur on the nkeyup event I want the lookup to be triggered approx 0.5 seconds after the keyup event has occurred. Thanks!

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  • Problem with UITabBar + NavController in secondView viewDidLoad isn't called

    - by pbcoder
    My Application is a Tabbar with a navController in each of it's tabs. Now, the problem is to add a custom info button to the navController in the SecondView. I've created the App in InterfaceBuilder and entered the name of the nib to Load there. If I run my App now, the SecondView is shown, but the problem is, that the viewDidLoad is not called. http://www.freeimagehosting.net/image.php?9d8ed67dcc.png

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  • jquery show hidden div

    - by Fahad
    Firstly, I'm sort of embarrassed asking about this, so many people have already asked this question but even after having gone through so many posts, I'm unable to achieve what I want. Basically, a div, initially hidden, has to be displayed on a button click. I tried hiding the div using display:none and hide() and then displaying it using show(), toggle(), and css("display","block"). Using all sorts of combinations of the above, I was still unable to get the result. Code: <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <title></title> <link href="css/smoothness/jquery-ui-1.9.2.custom.min.css" rel="stylesheet" type="text/css" /> <script src="jQuery/jquery-1.8.3.min.js" type="text/javascript"></script> <script src="jQuery/jquery-ui-1.9.2.custom.min.js" type="text/javascript"></script> <script type="text/javascript"> $(document).ready(function () { $('#one').hide(); $('#Button1').click(function () { $('#one').toggle(500); }); }); </script> </head> <body> <form id="form1" runat="server"> <div id="one" style="height: 20px;width:200px; background-color: Red; "> </div> <asp:Button ID="Button1" runat="server" Text="Show" /> </form> </body> </html> On button click, the div is shown for a brief second before it disappears again. The same thing happens if I use show() instead of toggle() in the above code. Again the same thing if I set style="display:none" to the div instead of using hide() and then use show() or toggle(). I also tried using $('#one').css("display","block"); but again, the same result. Can anyone please tell me where I'm going wrong. Just started learning jQuery and it is really frustrating when something apparently so simple will not work. Thanks in advance. :)

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  • Orange Brightbox and NO-IP.com

    - by JSweete
    Strange one here i didnt know where to ask, and i know this is a developer resource but i was hoping with everyones tech know how someone may have a solution for my problem. Ok i had an orange livebox before and in the dynamic dns settings it had no-ip.com as a drop down option with login variables to update my account with a dynamic ip address. This worked great for years. However my livebox died and i now have a orange brightbox, and this doesnt have no-ip.com as a login update option for dynamic dns on my router. Does any one have any idea how i can get my domain to point to my home server with a dynamic ip address ideally for free? This is merely for testing and to have a backup server for my main remote server.

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  • Play DVDs in Python?

    - by Zachary Brown
    I want to write a custom DVD player using python that plays for 30 seconds, then pauses and asks a question. Once the question is anwered, it tells the user if they are right or wrong and gives them a Resume button to resume DVD playback. How do I do this. I have never written a DVD player before, but I am open to learning!

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  • How can I iterate through table styles only?

    - by Vitali Climenco
    I have a procedure that iterates through the styles available to a document: Sub EnumerateStyles() For Each Style in ActiveDocument.Styles `some custom code Next End Sub I do not need all the styles, and just those that are applicable to tables only. How can I programmatically filter the styles? Thank you

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  • Android Twitter Application Development and Usage of TextView and Linkify

    - by y ramesh rao
    I'm on developing a twitter kind of Application where in I want that the user would be displayed the timelines and the Textview in the Lists require to perform clicks on (http://)URLs, (@)usernames, and (#)hasTags and I want to invoke custom methods over these actions, I have used the Linkify class and the actions but where of no use because the customization that i require cannot be incorporated.

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  • Multiple MouseHover events in a Control

    - by triton
    I'm trying to implement a custom control in C# and I need to get events when the mouse is hovered. I know there is the MouseHover event but it only fires once. To get it to fire again I need to take the mouse of the control and enter it again. Is there any way I can accomplish this?

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  • Merge documents

    - by Jelle
    I'm trying to merge two docx-documents into one docx-document using OpenXML SDK 2.0. The documents should be merged without loosing their styling and custom headers and footers. I hope I can achieve this using AltChunk and a section break. But I can't get it working. Is it possible what I'm trying to do? Can someone give me a hint how to achieve this?

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  • Enable debugging in Design mode in VS

    - by Dan Tao
    Is there any way to enable debugging from within the Windows Forms Designer in Visual Studio (any version, up to and including 2010)? What I mean is, say I have some custom user control, and this control has certain validation that it performs when I set a particular property. I'd like to be able to set a breakpoint somewhere within that code, and step through it to see what happens when I set the property from the designer.

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  • Controlling QR Code Scanning Actions

    - by Elijah
    I am looking to create a QR code that does the following: When scanned from inside an application, it dislpays a custom alert, (Ex. "You won $5") When scanned with a different QR code reader (non app) it goes to a mobile web page that directs the user to download the application. My main question is: Can you control what happens when a QR code is scanned by a reader that is not your own? (A 'default' action, if you will)

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  • How to catch an exception and email information about it in liferay portlet

    - by heikkim
    I have a custom portlet made for liferay and sometimes it throws an exception. Why it throws exceptions is irrelevant. How to catch exceptions thrown by portlet handler methods in order to email information about them? I know I could do try catching on every handler method but it would be a much more elegant and cleaner solution to catch the exception on a higher level and just email some information about the error. I'm using Spring Portlet MVC, so i got all spring-related niceties at hand.

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  • Spring Security User

    - by DD
    What is best practise in Spring when creating a new user with custom attributes...to extend org.springframework.security.core.userdetails.User or to create the User in the UserDetailsService (this is the approach taken in the IceFaces tutorial). public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException, DataAccessException { AppUser user = userDAO.findUser(username); if (user == null) throw new UsernameNotFoundException("User not found: " + username); else { return makeUser(user); } } private User makeUser(AppUser user) { return new User(user.getLogin(), user .getPassword(), true, true, true, true, makeGrantedAuthorities(user)); }

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  • Java: Finding objects in collections.

    - by Jake
    This problem occurs over and over. I have some complicated object, such as a Cat, which has many properties, such as age, favorite cat food, and so forth. A bunch of Cats are stored in a Java Collection, and I need to find all the Cats that are aged 3, or those whose favorite cat food is Whiskas. Surely, I can write a custom method that finds those Cats with a specific property, but this gets cumbersome with many properties; is there some generic way of doing this?

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