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  • A good language for c# dev to expand his mind [closed]

    - by Jan Kratochvil
    I have some free time on my hands and I was thinking about learning a new language. I do not plan to use it in my day-to-day job, but I rather want to expand my way of thinking to get a better sense where the dev world is heading from a language perspective and to don't get stuck in my way when programming by rather try new approaches. I was thinking either a functional language, like Haskell or F# (which is a bit more 'pragmatic from a .NET dev standpoint) or something dynamic (like Python, that in my oppinion has nicer syntax than Ruby). What can you recommend that is enjoyable, at least a bit practical, but most of all, new (from a c# dev perspective). I appreciate any answers.

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  • /dev/sda1 100% Mysql to blame?

    - by SJP
    I have a an API running that receives raw binaries, processes them, and then stores metadata about the bins in a mysql database. I have been running it for a couple days on a VM. Today the API stopped processing the mySQL commands. After using the command df-h the results were: root@mwdb1:/# df -h Filesystem Size Used Avail Use% Mounted on /dev/sda1 104G 99G 0 100% / udev 16G 4.0K 16G 1% /dev tmpfs 6.3G 364K 6.3G 1% /run none 5.0M 0 5.0M 0% /run/lock none 16G 0 16G 0% /run/shm /dev/sdb1 5.5T 42G 5.2T 1% /data sda1 is at 100%

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  • “Disk /dev/xvda1 doesn't contain a valid partition table”

    - by Simpanoz
    Iam newbie to EC2 and Ubuntu 11 (EC2 Free tier Ubuntu). I have made following commands. sudo mkfs -t ext4 /dev/xvdf6 sudo mkdir /db sudo vim /etc/fstab /dev/xvdf6 /db ext4 noatime,noexec,nodiratime 0 0 sudo mount /dev/xvdf6 /db fdisk -l I got following output. Can some one guide me what I am doing wrong and how it can be rectified. Disk /dev/xvda1: 8589 MB, 8589934592 bytes 255 heads, 63 sectors/track, 1044 cylinders, total 16777216 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Disk /dev/xvda1 doesn't contain a valid partition table Disk /dev/xvdf6: 6442 MB, 6442450944 bytes 255 heads, 63 sectors/track, 783 cylinders, total 12582912 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Disk /dev/xvdf6 doesn't contain a valid partition table.

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  • Creating Persistent Drive Labels With UDEV Using /dev/disk/by-path

    - by Matt
    I have a new BackBlaze Pod (BackBlaze Pod 2.0). It has 45 3TB drives and they when I first set it up they were labeled /dev/sda through /dev/sdz and /dev/sdaa through /dev/sdas. I used mdadm to setup three really big 15 drive RAID6 arrays. However, since first setup a few weeks ago I had a couple of the hard drives fail on me. I've replaced them but now the arrays are complaining because they can't find the missing drives. When I list the the disks... ls -l /dev/sd* I see that /dev/sda /dev/sdf /dev/sdk /dev/sdp no longer appear and now there are 4 new ones... /dev/sdau /dev/sdav /dev/sdaw /dev/sdax I also just found that I can do this... ls -l /dev/disk/by-path/ total 0 lrwxrwxrwx 1 root root 10 Sep 19 18:08 pci-0000:02:04.0-scsi-0:0:0:0 -> ../../sdau lrwxrwxrwx 1 root root 9 Sep 19 18:08 pci-0000:02:04.0-scsi-0:1:0:0 -> ../../sdb lrwxrwxrwx 1 root root 9 Sep 19 18:08 pci-0000:02:04.0-scsi-0:2:0:0 -> ../../sdc lrwxrwxrwx 1 root root 9 Sep 19 18:08 pci-0000:02:04.0-scsi-0:3:0:0 -> ../../sdd lrwxrwxrwx 1 root root 9 Sep 19 18:08 pci-0000:02:04.0-scsi-0:4:0:0 -> ../../sde lrwxrwxrwx 1 root root 10 Sep 19 18:08 pci-0000:02:04.0-scsi-2:0:0:0 -> ../../sdae lrwxrwxrwx 1 root root 9 Sep 19 18:08 pci-0000:02:04.0-scsi-2:1:0:0 -> ../../sdg lrwxrwxrwx 1 root root 9 Sep 19 18:08 pci-0000:02:04.0-scsi-2:2:0:0 -> ../../sdh lrwxrwxrwx 1 root root 9 Sep 19 18:08 pci-0000:02:04.0-scsi-2:3:0:0 -> ../../sdi lrwxrwxrwx 1 root root 9 Sep 19 18:08 pci-0000:02:04.0-scsi-2:4:0:0 -> ../../sdj lrwxrwxrwx 1 root root 10 Sep 19 18:08 pci-0000:02:04.0-scsi-3:0:0:0 -> ../../sdav lrwxrwxrwx 1 root root 9 Sep 19 18:08 pci-0000:02:04.0-scsi-3:1:0:0 -> ../../sdl lrwxrwxrwx 1 root root 9 Sep 19 18:08 pci-0000:02:04.0-scsi-3:2:0:0 -> ../../sdm lrwxrwxrwx 1 root root 9 Sep 19 18:08 pci-0000:02:04.0-scsi-3:3:0:0 -> ../../sdn lrwxrwxrwx 1 root root 9 Sep 19 18:08 pci-0000:02:04.0-scsi-3:4:0:0 -> ../../sdo lrwxrwxrwx 1 root root 10 Sep 19 18:08 pci-0000:04:04.0-scsi-0:0:0:0 -> ../../sdax lrwxrwxrwx 1 root root 9 Sep 19 18:08 pci-0000:04:04.0-scsi-0:1:0:0 -> ../../sdq lrwxrwxrwx 1 root root 9 Sep 19 18:08 pci-0000:04:04.0-scsi-0:2:0:0 -> ../../sdr lrwxrwxrwx 1 root root 9 Sep 19 18:08 pci-0000:04:04.0-scsi-0:3:0:0 -> ../../sds lrwxrwxrwx 1 root root 9 Sep 19 18:08 pci-0000:04:04.0-scsi-0:4:0:0 -> ../../sdt lrwxrwxrwx 1 root root 9 Sep 19 18:08 pci-0000:04:04.0-scsi-2:0:0:0 -> ../../sdu lrwxrwxrwx 1 root root 9 Sep 19 18:08 pci-0000:04:04.0-scsi-2:1:0:0 -> ../../sdv lrwxrwxrwx 1 root root 9 Sep 19 18:08 pci-0000:04:04.0-scsi-2:2:0:0 -> ../../sdw lrwxrwxrwx 1 root root 9 Sep 19 18:08 pci-0000:04:04.0-scsi-2:3:0:0 -> ../../sdx lrwxrwxrwx 1 root root 9 Sep 19 18:08 pci-0000:04:04.0-scsi-2:4:0:0 -> ../../sdy lrwxrwxrwx 1 root root 9 Sep 19 18:08 pci-0000:04:04.0-scsi-3:0:0:0 -> ../../sdz I didn't list them all....you can see the problem above. They're sorted by scsi id here but sda is missing...replaced by sdau...etc... So obviously the arrays are complaining. Is it possible to get Linux to reread the drive labels in the correct order or am I screwed? My initial design with 15 drive arrays is not ideal. With 3TB drives the rebuild times were taking 3 or 4 days....maybe more. I'm scrapping the whole design and I think I am going to go with 6 x 7 RAID5 disk arrays and 3 hot spares to make the arrays a bit easier to manage and shorten the rebuild times. But I'd like to clean up the drive labels so they aren't out of order. I haven't figured out how to do this yet. Does anyone know how to get this straightened out? Thanks, Matt

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  • Mounting both /dev/sda and /dev/sda1 - how can this be?

    - by itsadok
    I work on an Amazon EC2 instance that somebody else set up. We have an EBS volume mounted on /dev/sda, even though the root device is already on /dev/sda1, and we're also using `/dev/sda2' user@server:~$ mount /dev/sda1 on / type ext3 (rw) ... (snip) /dev/sda2 on /mnt type ext3 (rw) /dev/sda on /vol type xfs (rw,noatime) ... This doesn't seem to fit with what I know about the way /dev/ works. How is this possible, and more importantly: will this cause trouble in the future? I'm running ubuntu 9.04 jaunty.

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  • debian dependencies (libssl-dev and libncurses5)

    - by RubyFreak
    I'm trying to install under RVM the Ruby Enterpise (REE) under debian My debian is squeeze (uname -r) 2.6.18-194.26.1.el5.028stab070.14xen i did try to install ree but it complains that it is missing libssl-dev and libreadline5-dev. I did update my lenny to squeeze, but i didn't update the kernel, since its a production server. The operational system is already updated and upgraded sources.list: deb http://ftp.de.debian.org/debian/ squeeze main contrib non-free deb-src http://ftp.de.debian.org/debian/ squeeze main contrib non-free deb http://security.debian.org/ squeeze/updates main deb-src http://security.debian.org/ squeeze/updates main I did try to install it using the following command: apt-get install libssl-dev libreadline5-dev But unfortunately i'm getting the following problems: The following packages have unmet dependencies: libreadline5-dev: Depends: libncurses5-dev but it is not going to be installed libssl-dev: Depends: libssl0.9.8 (= 0.9.8o-4squeeze1) but 0.9.8o-6 is to be installed E: Broken packages I was thinking to reinstall those packages and install again, but it has too many dependencies, and it is a production server, that i would like to know if there is any other way to fix it. Or at least to double check if it is necessary to reinstall both :-/

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  • no disk space, cant use internet

    - by James
    after trying to install drivers using sudo apt-get update && sudo apt-get upgrade, im faced with a message saying no space left on device, i ran disk usage analyzer as root and there was three folders namely, main volume, home folder, and my 116gb hard drive (which is practically empty) yet both other folders are full, which is stopping me installing drivers because of space, how do i get ubuntu to use this space on my hard drive? its causing problems because i cant gain access to the internet as i cant download drivers when i havnt got enough space, this happens every time i try it sudo fdisk -l Disk /dev/sda: 120.0GB, 120034123776 bytes 255 heads, 63 sectors/track, 14593 cylinders, total 234441648 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x0003eeed Device Boot Start End Blocks Id System /dev/sda1 * 2048 231315455 115656704 83 Linux /dev/sda2 231317502 234440703 1561601 5 Extended /dev/sda5 231317504 234440703 1561600 82 Linux swap / solaris Output of df -h df: '/media/ubuntu/FB18-ED76': No such file or directory Filesysytem Size Used Avail Use% Mounted on /cow 751M 751M 0 100% / udev 740M 12K 740M 1% /dev tmpfs 151M 792K 150M 1% /run /dev/sr0 794M 794M 0 100% /cdrom /dev/loop0 758M 758M 0 100% /rofs none 4.0K 0 4.0K 0% /sys/fs/cgroup tmpfs 751M 1.4M 749M 1% /tmp none 5.0M 4.0K 5.0M 1% /run/lock none 751M 276K 751M 1% /run/shm none 100M 40K 100M 1% /run/user

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  • C# / WPF / .NET - Drag and drop to Desktop / Explorer

    - by Dänu
    Hey Guys Following my scenario. I got an Application which loads a Filestructure (Folders, Files) from a Database into a WPF ListView. Now I'd like to grab a file from this ListView, drag it over my Desktop (or some open explorer window) and drop it there. Basic Drag and Drop, nothing fancy. This sounds like a "standard" function for a windows application - but google won't help. So how can I achieve this? Interops? Thanks Edit: Thanks for the solution, I still had to do some googling. Here's my complete solution.

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  • Load ActiveX DLL in Internet Explorer with elevated privileges

    - by adum
    I have an ActiveX control that I'm loading with JavaScript in Internet Explorer. It needs to run as medium integrity under UAC in Vista and Win7. This is written in C/C++, compiled in Visual Studio. One way to elevate privileges is to create a broker process that can request a medium integrity level. However, for this project, this is not a practical solution. I really need the ActiveX control itself to run elevated. My question is: what's the easiest way to do this? Can I change the build options on the project to be an exe, and use the COM interprocess connect system to automatically handle the communications, or do I need to be more sophisticated? Do I need to do anything complicated like manually call CreateProcess and make some kind of broker, or can it just work as an ActiveX exe that elevates itself?

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  • Where does Internet Explorer store saved passwords?

    - by Ian Boyd
    Where does Internet Explorer store saved passwords? And since this is a programming site, i'm not literally asking for the location where IE stores passwords, but which API ie uses to save passwords. At first i assumed that Microsoft was using the standard api: CredRead CredWrite which is used to save domain and generic program/web-site credentials. CredRead/CredWrite turn around and use CryptProtectData CryptUnprotectData to encrypt data with the current user's account. CredRead/CredWrite then store the data in some magical location, which contents you can see from the control panel: But i don't see IE passwords in there. So ie doesn't store passwords using CredRead/CredWrite. What api does IE use to store passwords, and if it uses CryptProtectData, where does it then store the protected data?

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  • umbraco tiny MCE 3 internet explorer insert link error

    - by user150946
    Hi, I have an instalation of Umbraco 4.0.2.1. In internet explorer (6 / 7) i get an error when trying to insert a link using the tiny MCE rich text editor. basicaly what happens is i can choose the node in the site i want to link to but when i click insert it reloads but the tiny MCE popup does not dissapear and i get the following page error. Line: 368 Char: 9 Error: 'the Form._SCROLLPOSITIONX.value' is null or not an object code: 0 URL: "mydev server"/umbraco/plugins/tinymce3/insertLink.aspx I dont get this problem in Firefox and i have other instalations of umbraco 4.0.2.1 in which this error does not occur. I have tried using WinMerge to comparing the code of the two instalations and they seem identical in all the places i can think would have an effect on tinyMCE ("bin", "umbraco_client\tinymce3", "umbraco\plugins\tinymce3") I am pulling my hair out over this and any help would be very much appreciated.

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  • Hide header and footer when printing from Internet Explorer using Javascript or CSS

    - by molasses
    When I print a webpage from Internet Explorer it will automatically add a header and footer including the website title, URL, date, and page number. Is it possible to hide the header and footer programatically using Javascript or CSS? Requirements: works in IE 6 (no other browser support necessary as its for an Intranet) may use ActiveX, Java Applet, Javascript, CSS preferably not something that the user needs to install (eg. http://www.meadroid.com/scriptx). feel free to list other third party available plug-ins though as I think this may be the only option don't require the user to manually update their browser settings don't render the pages as PDF or Word document or any other format don't write to the registry (security prevents this) Thanks

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  • Internet Explorer blocked this website from displaying content with security certificate errors

    - by Tabrez
    I have a security certificate linked to a CDN's server. The main website is https:www.connect4fitness.com When I pull the site up in firefox or chrome, everything works fine. But in IE I get the following error: "Internet Explorer blocked this website from displaying content with security certificate errors." On IE 9 it shows the button "Display Content" and you can get past the error by clicking on the button. On older versions on I the error message is much more cryptic and is confusing users. Please note that I don't have the option of asking end users to add the site to Trusted Sources as some folks use the site from their work computers and do not have that access. Also, some people don't bother to call once they hit the error. I have looked at the content and all my links are "https" only. I had one namespace link and I got rid of it. Any idea about how I can find what is triggering this message?

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  • basic device that can connect to internet

    - by Hellnar
    Hello, I am looking for a cheap solution to my problem: I need to find either a common device (that is used in restaurants, bars clubs) or a cheap new device that can connect to internet (via the already existing ethernet or wireless based internet) and do HTTP request/receive response and retrieve information ? (For instance can a POS device connect to internet?) For a project, I need to do identity validation on several restaurants and bars and not all of them have computers. So I will be giving "cheap and easy to use devices" and non-IT personal can use it to do http request to my server and get response. All I can think of is Cell phones and SMS.

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  • Internet Explorer generates extra br

    - by ahsteele
    I have an issue where Internet Explorer is generating an additional br element that is not in my source. The additional br effects the page's layout and is visible when using the developer tool. I've tried removing all hard returns between the surrounding elements but the additional br persists. Firefox and Chrome do not have this issue. Ideas on what I can do to fix the issue? Instead of First line. Second line. I get First line Second line. Code Example <asp:ImageButton ID="RemoveItem" AlternateText="Remove Item" ImageUrl="~/img/buttons/remove.png" runat="server" CssClass="remove" CommandName="Remove" OnCommand="RemoveCartItem_Command" /> <br runat="server" id="TotalBreak" />

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  • Can't switch on designMode in Internet Explorer

    - by Charles Anderson
    The following code works in Firefox 3.6, but not in Internet Explorer 8: <html> <head> <title>Example</title> <script type="text/javascript"> function init() { alert(document.designMode); document.designMode = "on"; alert(document.designMode); } </script> </head> <body onload="init()"> </body> </html> In FF the alerts show 'off', then 'on'; in IE they're both 'Off'. What am I doing wrong?

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  • How can you block access form internet explorer in asp mvc

    - by Chase Aucoin
    I love microsoft development products! I hate microsoft browsers... I have made the decision to cut ties with internet explorer until they add support for some common W3 approved items. Namely 'multiple' in forms as well as about 5 other things... and as such I would like to urge my visitors to use a better browser. is there a way to setup an http handler or perhaps something in the asax file to route all ie users to a custom page? Thanks for the help! p.s. microsoft why must you make me love you and hate you.

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  • Fixing javascript Array functions in Internet Explorer (indexOf, forEach, etc)

    - by Chas Emerick
    As detailed elsewhere, and otherwise apparently well-known, Internet Explorer (definitely 7, and in some instances, 8) do not implement key functions, in particular on Array (such as forEach, indexOf, etc). There are a number of workarounds here and there, but I'd like to fold a proper, canonical set of implementations into our site rather than copy and paste or hack away at our own implementations. I've found js-methods, which looks promising, but thought I'd post here to see whether another library comes more highly-recommended. A couple of misc. criteria: the lib should just be a no-op for those functions that a browser already has implementations for (js-methods appears to do quite well here) non-GPL, please, though LGPL is acceptable

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  • Deploying plugins for Internet Explorer

    - by Techpriester
    Hi everybody. I'm looking for a way to deploy an Internet Explorer plugin for SVG-rendering without manually installing it on every client machine. Is there a way to use some ActiveX voodoo stuff to automatically install a plugin? I have no reliable information about the IE versions that are used on the client side so I assume the worst: IE6. To make things even harder, the users probably don't have administrator privileges on the client machines. The whole thing happens in an enclosed local network, so security considerations are entirely secondary. It also does not really matter which actual plugin it will be, anything that can render SVG and run Javascript on it will do just fine. I can't think of anything to make this work so I'm desperate for help here...

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  • How to count new lines in Internet Explorer?

    - by Impirator
    Hey, all. I'm doing my own syntax highlighter for Javascript and CSS, and I've run into an issue with Internet Explorer (big surprise). I grab all the contents of a code.block tag (example below) using innerHTML, and .split("\n") that result to get each line by itself. This works wonderfully except in IE. I have tried using innerText and .split("\r\n") also without success. Can anyone recommend a solution? If it makes a difference, my code.block tags are styled to be white-space:pre-wrap. <code class="block css">div#randomBarsDemo { width:175px; height:200px; } div#randomBarsDemo div { background-color:#111; width:100%; }</code>

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  • hierarchical html listbox with mimicking file explorer level folding

    - by collapsar
    hello everybody, i'm looking for a technique to adapt a html listbox to hierarchical content with an unlimited number of levels ( const 1 would be sufficient ). hierarchy levels should be collapsible as in the usual file explorer views. the html listbox behaviour should be preserved / mimicked as comprehensively as possible. do you have a hint on where to find or how to implement this ? jquery solutions are fine. firefox 3.5+, ie 8+, safari 5 must be supported; opera 11, chrome 9 would be nice. as far as i understand the issue, listbox contents are rendered inside their own browser window sporting none of the standard window adornments. a hint on how to obtain a handle on this window in js would be a sufficient starting point, as well as correcting me in case i misconceived the browser behaviour. thanks in advance for your efforts, best regards, carsten

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  • Windows7 explorer context strip hook?

    - by aceman
    Hy everybody, I'm wondering if it's possible to add a new button via C++ or C# to windows 7 explorer "context strip"(don't know if this is correct name) - like on picture below. My reason for this is because a lot of times I'm switching on&off "Show hidden files, folders and drives" functionality under Tools-Folder option-View. Therefore i want to simplify this process with a click of a button. I was looking into ShellExecteEx function, but I am not sure I can do that. Can Anybody direct me in right direction? thanks, regards

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  • How to use jquery code in Internet Explorer?

    - by ilariah
    I put some jquery in my website that makes the text move to the right when the page changes. It works in Firefox and Safari but it doesn't work in Internet Explorer. My url to my website: http://katieduck.com/Courses/Improvisation%20Winter%20Course%20Dartington.html Here is the code that is not working: $(document).ready(function() { $('#tabvanilla > ul').tabs({ fx: { height: 'toggle', opacity: 'toggle' } }); $('#featuredvid > ul').tabs(); }); Maybe you can find out what is wrong.

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  • The Chinese SEO in the Internet SEO Formula

    Most ecommerce websites are designed in order to drive the Chinese internet users to the website thus delivering a good user experience that converts the users into customers. According to a statistical report on the internet development in China, conducted during the year 2009, the Chinese SEO of the ecommerce site plays an important role in determining the perception of the internet users towards internet as an information gateway and its impact on the user's behavior and attitude on internet trust.

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