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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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  • 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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  • Getting the Assembly Qualified Name of a class in Visual Studio

    - by Alex Marshall
    Hello, I'm writing a customized reflective library for some specialized custom domain logic, and that library is going to use XML configuration files that will dynamically resolve System.Type objects at runtime. However, when writing the XML configuration files, it's a bit of a pain to write the types because they need to be fully qualified assembly names for Type.GetType() to resolve them. Is there a way to find out the AssemblyQualifiedName of an object in Visual Studio without resorting to writing a program to print them out to a file or standard out or anything like that ?

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  • SVN Error when connecting from MacBook

    - by user66850
    This is drying me nuts for last 5 days!!! Out of the blue 5 days ago, SVN access from my MacBook Pro failed: I cannot access any SVN (i.e. not in our University or open source projects etc). The error obtain when performing 'svn co', or any other svn commands is shown below. This is same message is obtained irrespective of the svn repository (i.e. it is something due to my Macbook) svn co http://anonsvn.internet2.edu/svn/i2mi/branches/GROUPER_1_6_BRANCH/ svn: OPTIONS of 'http://anonsvn.internet2.edu/svn/i2mi/branches/GROUPER_1_6_BRANCH': Could not read status line: connection was closed by server (http://anonsvn.internet2.edu)

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  • What is fastest way to backup a disk image over LAN?

    - by David Balažic
    Sometimes I boot sysrescd or a similar live linux on a PC to backup the hardrive over local network to my server. I noticed many times, that the transfer speed is not optimal (slower than HDD and network speed). Any rules of thumb what to do and what to avoid? What I typically do is something like: dd bs=16M if=/dev/sda | nc ... # on client nc ... | dd bs=16M of=/destination/disk/backup1 # on server I also "throw" in lzop (other are way too slow) and sometimes on the fly md5sum calculation (both of uncompressed and compress source). I try to add (m)buffer (or other alternatives) to improve throughput (and get a progress indicator). I noticed that even with enough free CPU, adding commands to the pipeline slows things down. Typically the destination is on a NTFS volume (accessed via ntfs-3g, with the _big_writes_ option).

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  • Installed Percona mySQL on CPanel but getting an error

    - by user1227914
    I installed Percona mySQL on my fresh CPanel server (no databases yet) according to: http://www.ecommy.com/linux/install-...el-environment Everything seemed to be OK and the server also starts fine, except some commands return this error: root@server [/var/lib/mysql]# mysql -A -sN information_schema -e "select * from user_statistics;" mysql: unknown variable 'innodb_file_per_table=1' root@server [/var/lib/mysql]# mysql -A mysql: unknown variable 'innodb_file_per_table=1' In my /etc/my.cnf I have: [mysql] innodb_file_per_table=1 userstat_running=1 I am planning on using InnoDB for the databases. Anyone know what the problem is? Or even better, how to fix it? I have installed Percona 5.5 with yum on CentOS.

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  • tail -f updates slowly

    - by Cliff
    I'm not sure why, but on my Macbook Pro running lion I get slow updates when I issue "tail -f" on a log file that is being written to. I used to use this command all the time at my last company but that was typically on Linux machines. The only thing I can think of that would possibly slow the updates are buffering of output and/or maybe a different update interval on a Mac vs. Linux. I've tried with several commands all which write to stout relatively quickly but give slow updates to the tail command. Any ideas? Update I am merely running a python script with a bunch of prints in it and redirecting to a file vi " my output.log". I expect to see updates near real time but that doesn't seem to be the case.

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  • no download and install progress, no error message (no text at all!) for sudo gem install merb

    - by Delirium tremens
    I'm using ruby 4.2, rubygems 1.3.5-1ubuntu2 and Ubuntu Lucid Lynx. I installed ruby and rubygems with Synaptic. Since "The gem command will output its progress while it sucks down and installs all the necessary gems for a full Merb install. " is written at http://wiki.merbivore.com/howto/installation/gems, when I type sudo gem update --system, I get: "ERROR: While executing gem ... (RuntimeError) gem update --system is disabled on Debian. RubyGems can be updated using the official Debian repositories by aptitude or apt-get." and rubygems has list, build and help commands, I'm wondering if in Ubuntu rubygems is used only for something other than downloading. If it isn't, why isn't rubygems showing any text for sudo gem install merb?

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  • How to delete files quicker than rm -rf?

    - by Byakugan
    Is there any way how to delete folder/files quicker than with command rm -rf? It seems my disc is filled with bilions of files (sessions of php5) which were not deleted in cron so I need to delete them manually but it takes hours and it is still not helping reducing the amount. Thank you. My command: rm -rf /var/lib/php5/* Tried also these commands: find /var/lib/php5 -name "sess_*" -exec rm {} \; And perl -e 'chdir "/var/lib/php5/" or die; opendir D, "."; while ($n = readdir D) { unlink $n }'

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  • Generic Type Parameter constraints in C# .NET

    - by activwerx
    Consider the following Generic class: public class Custom<T> where T : string { } This produces the following error: 'string' is not a valid constraint. A type used as a constraint must be an interface, a non-sealed class or a type parameter. Is there another way to constrain which types my generic class can use? Also, can I constrain to multiple types? E.G. T can only be string, int or byte

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  • Real-Time chat translation on mac using either Skype, Adium or iChat

    - by Cawas
    If you're looking for MSN and / or Windows, just go here. I'm looking for Real-Time chat translation tools for Mac, and preferably using Adium, but it could be for Skype, iChat or maybe another option if it's really good. So far I could only easily find a plugin for Adium, simply called translator, that uses google, dicts and babelfish, but you have to type commands in and paste the words or sentences, and it's currently not even working on Snow Leopard. Even if it did, it's still not quite as automatic as we'd expect (or see in other platforms as indicated). So I'm just citing it as an example of a bad solution.

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  • Is there an FTP client for Windows 7 with a text-based UI? (not text-prompt based, like ftp.exe)

    - by Alan B
    Is there such as thing as a text-mode FTP client for Windows 7 ? By 'text-mode' I mean one that runs in a CMD.EXE window as opposed to a Windows GUI application. It also needs to be something along the lines of FileZilla, i.e. menu-driven as opposed to command-entry clients like NcFTP or indeed the built-in one. edit: To avoid confusion, what I mean is an application similar to that pictured (ZTreeWin File Manager), which runs from CMD.EXE and uses text characters for its UI, within the CMD.EXE window. The built-in FTP client, and things like NcFTP offer a prompt at which you issue commands. That's not what I'm looking for.

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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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  • The 'which' command returns nothing via cron, but works via console

    - by Zárate
    Hi there, I've written a little utility in haXe + Neko that needs to execute some GIT commands. To avoid hardcoding the path to the GIT executable I'd like to use the which command to find out where it is. Everything works as expected when running manually from the console, but not when the the app runs on a cron job. I'm aware of the restricted environment (here or here) when you run a script using cron, but still surprised this doesn't work: /usr/bin/which git >> /home/user/git.txt The text file is created but the content is empty. Again, when run from the console it works as expected. Any ideas? I'm running OS X Leopard, if that helps. Thanks : ) Juan

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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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  • why this routing configuration does not work?

    - by avs099
    I have 2 VMs in HyperV role: first is RRAS - it has 2 interfaces (both manually configured, no DHCP): 192.168.1.110 - "external" one, connected to the router 192.168.10.2 - that's internal interface which other VMs will be using as well also I added VPN connection to our main server - and it gets 192.168.2.136 IP address in 192.168.2.XXX network. And IP route is create on the server as well for this interface. second VM is called KITCHENER. It only has 1 interface 192.168.10.99 / 255.255.255.0, with default gateway set to RRAS server - 192.168.10.2 QUESTION: how can I ping "main server" - 192.168.2.1 - from the KITCHENER server when RRAS server is connected to VPN? please see screenshots with ipconfig /all, route print and ping 192.168.2.1 commands. What needs to be done to get this working? all servers are Windows 2008 R2 if that matters.

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  • [C#][Design] Appropriate programming design questions.

    - by Edward
    I have a few questions on good programming design. I'm going to first describe the project I'm building so you are better equipped to help me out. I am coding a Remote Assistance Tool similar to TeamViewer, Microsoft Remote Desktop, CrossLoop. It will incorporate concepts like UDP networking (using Lidgren networking library), NAT traversal (since many computers are invisible behind routers nowadays), Mirror Drivers (using DFMirage's Mirror Driver (http://www.demoforge.com/dfmirage.htm) for realtime screen grabbing on the remote computer). That being said, this program has a concept of being a client-server architecture, but I made only one program with both the functionality of client and server. That way, when the user runs my program, they can switch between giving assistance and receiving assistance without having to download a separate client or server module. I have a Windows Form that allows the user to choose between giving assistance and receiving assistance. I have another Windows Form for a file explorer module. I have another Windows Form for a chat module. I have another Windows Form form for a registry editor module. I have another Windows Form for the live control module. So I've got a Form for each module, which raises the first question: 1. Should I process module-specific commands inside the code of the respective Windows Form? Meaning, let's say I get a command with some data that enumerates the remote user's files for a specific directory. Obviously, I would have to update this on the File Explorer Windows Form and add the entries to the ListView. Should I be processing this code inside the Windows Form though? Or should I be handling this in another class (although I have to eventually pass the data to the Form to draw, of course). Or is it like a hybrid in which I process most of the data in another class and pass the final result to the Form to draw? So I've got like 5-6 forms, one for each module. The user starts up my program, enters the remote machine's ID (not IP, ID, because we are registering with an intermediary server to enable NAT traversal), their password, and connects. Now let's suppose the connection is successful. Then the user is presented with a form with all the different modules. So he can open up a File Explorer, or he can mess with the Registry Editor, or he can choose to Chat with his buddy. So now the program is sort of idle, just waiting for the user to do something. If the user opens up Live Control, then the program will be spending most of it's time receiving packets from the remote machine and drawing them to the form to provide a 'live' view. 2. Second design question. A spin off question #1. How would I pass module-specific commands to their respective Windows Forms? What I mean is, I have a class like "NetworkHandler.cs" that checks for messages from the remote machine. NetworkHandler.cs is a static class globally accessible. So let's say I get a command that enumerates the remote user's files for a specific directory. How would I "give" that command to the File Explorer Form. I was thinking of making an OnCommandReceivedEvent inside NetworkHandler, and having each form register to that event. When the NetworkHandler received a command, it would raise the event, all forms would check it to see if it was relevant, and the appropriate form would take action. Is this an appropriate/the best solution available? 3. The networking library I'm using, Lidgren, provides two options for checking networking messages. One can either poll ReadMessage() to return null or a message, or one can use an AutoResetEvent OnMessageReceived (I'm guessing this is like an event). Which one is more appropriate?

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  • Using ROBOCOPY to MOVE data around, not copy it

    - by Nate Bross
    I have the following powershell script, which executes a few robocopy commands: ROBOCOPY.exe $q3 $q4 /R:5 /W:15 /S /NP /MT:32 /XA:SH /XJD ROBOCOPY.exe $q2 $q3 /R:5 /W:15 /S /NP /MT:32 /XA:SH /XJD ROBOCOPY.exe $q1 $q2 /R:5 /W:15 /S /NP /MT:32 /XA:SH /XJD ROBOCOPY.exe $src $q1 /R:5 /W:15 /S /NP /MT:32 /XA:SH /XJD This works fine, but it takes a really long time, I'm wondering, if there is a way that I can have robocopy do a "cut + paste" instead of a "copy + paste" so windows will move the NTFS pointer to the file, instead of actually copying all of the bits of each file?

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  • Compiling LAMP from source - apache2 error “no MPM package installed”

    - by kenny99
    Hi, I've compiled LAMP from source on a Ubuntu VPS. I had to remove a previously installed version of Apache then I manually compiled all the packages, which seems to have worked up unto a point - however, when I try to run commands like "/etc/init.d/apache2 restart" I get the following error - No apache MPM package installed. I have installed mpm-prefork so I don't know why i'm getting this problem. My configure command is as follows: ./configure --enable-so --enable-modules=most --with-mpm=prefork I have deliberately not used apt-get to install anything and want to avoid this if possible. Anyone have any guidance on how to resolve this error? Thanks in advance

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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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  • 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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