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  • jQuery Validation Plugin: Packer undefined error?

    - by Rosarch
    I'm using the jQuery validation plugin from bassistance.de. It works fine. From <head>: <script type="text/javascript" src="/static/JQuery.js"></script> <script type="text/javascript" src="/static/js-lib/jquery.validate.pack.js"></script> <script type="text/javascript" src="/static/js-lib/jquery.validate.additional-methods.js"></script> At first, this was the only validation code I had, and it worked: $("form").validate(); $("#form-username").rules("add", { required: true, email: true, }); It was validating this HTML: <form id="form-username-form" action="api/user_of_email" method="get"> <p> <label for="form-username">Email:</label> <input type="text" name="email" id="form-username" /> <input type="submit" value="Submit" id="form-submit" /> </p> </form> Great, everything works. But then I add this JS: $("#form-choose-options input[type='text']").rules("add", { number: true, }); to validate this markup: <form id="form-choose-options" action="api/set_options" method="get"> <p> <label for="form-min-credits">Min credits per term:</label><input type="text" name="min_credits" id="form-min-credits" /> <br /> <label for="form-optimal-credits">Optimal credits per term:</label><input type="text" name="optimal_credits" id="form-optimal-credits" /> <br /> <label for="form-max-credits">Max credits per term:</label><input type="text" name="max_credits" id="form-max-credits" /> <br /> <label for="form-low-GPA">Lowest acceptable GPA:</label><input type="text" name="low_GPA" id="form-low-GPA" /> <br /> <label for="form-high-GPA">Highest realistic GPA:</label><input type="text" name="high_GPA" id="form-high-GPA" /> <br /> <input type="hidden" class="user-pk" name="pk"/> <input type="submit" value="Submit" /> </p> </form> This causes a javascript error on document load: $.data(f.form, "validator") is undefined The error is from the packer function. What am I doing wrong?

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  • New Windows 7 Install Crashing

    - by bobber205
    One big reboot crash and one smaller crash already, 15 minutes in. Did a basic install of Windows 7, installed Chrome and Firefox. I had just finished loading up my gmail account in Chrome/Firefox to show the speed difference and we'd thought it would be hilarious to see how slow IE8 was. :P Just about as IE8 was done opening, the computer's screen goes black. After a restart and a couple minutes, Explorer crashes as well. What is going on? This install is only 15-20 minutes old. :P

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  • How to route local traffic over switch?

    - by Franz Kafka
    I'm just cabled up at home but haven't got any way of verifying that gigabit speed can be reached. As I've only got one laptop with one network card, one cable, and one switch, I'm kind of stuck. I'm using a tool that you can start as a server or as a client to send data from one box to another. I would like to send and receive on the same Windows box. I guess if I use my network local IP address, my Windows 8.1 PC will just route traffic internally. Is there some way of forcing the traffic to go to the switch and back again?

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  • DNS forwarders limitations

    - by thejartender
    My question is very simple (maybe a tad too simple), but I will try and phrase it in a way to hopefully assist future visitors. I have just set up (successfully I hope) a DNS server at with some name server records on Ubuntu 12.10 while I am waiting for it to propagate I would like to know for future reference if I can use more than 2 forwarders in my /etc/named.conf.options.Would this speed up propagation? Do make this question and answer more valuable what other public DNS servers are available over and above Google's public DNS adresses: 8.8.8.8 8.8.4.4 I would also like to know if a restart of bind means that my servers will need to re-propagate? Is there a methodology to update settings while bind is running?

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  • Network based on Netgear FVS318 extremely slow

    - by Fentible
    A network I maintain uses an FVS318 as a router, with a separate switch. Communication within the network is slow. Out to the internet is even slower. As it stands there is one patch from the FVS to the switch and no other devices directly connected to the FVS because any that are run so slowly they might as well not be connected to the network. Swapping in a bog-standard home router dramatically increases network speed, but that's not a viable solution because some of the enterprise features of the FVS are required. There are quite a few complaints about this on the Netgear forum, but Netgear support have not been forthcoming with any help - so I turn to you all: any ideas?

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  • How to empty the Directory-Name-Lookup-Cache?

    - by mutzel
    I'm having speed problems with a Windows software that is looking up files in several directories on a NTFS formatted HDD. In order to find out why and in which settings the problem is occurring I set up a test scenario at my local PC. But this did not work as well as I expected. After the program did the first scan on all directories any additional scans on the same directories are done way faster than at the first scan. I assume that the directory names and there containing file names were cached by Windows. Is it somehow possible to either disable or empty this cache, if it is even existing?

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  • Whats the deal with python?

    - by gmatt
    My interests in programming lie mainly in algorithms, and lately I have seen many reputable researchers write a lot of their code in python. How easy and convenient is python for scientific computing? Does it have a library of algorithms that compares to matlab's? Is Python a scripting language or does it compile? Is it a great language for prototyping an algorithm? How long would it take me to learn enough of it to be productive provided I know C well and OO programming somewhat? Is it OO based? Sorry for the condensed format of questions, but I'm very curious and was hoping a more experienced programmer could help me out.

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  • Proccess of carrying out a BER Test

    - by data
    I am subscribed to an ISP supplying a 3meg ADSL line. Lately (for the last 4 weeks) speeds have dropped from the usual average downstream speed of ~250kbps to just 0.14Mbps (according to speedtest.net) and employees are complaining about lack of access to the server. I have been calling customer support and logging calls for the last 3 weeks, but they have been unable to determine the source of the problem other carrying out a few bitstream tests and checking the DHCP renewal times. I am going to call back and suggest carrying out a BER test. What type of equipment is needed to carry out this test? I have access to a wide range of Cisco networking equipment. Other: We dont need a leased line as there are less than ten employees.

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  • How to get the spec of a machine on Linux?

    - by machinePurchaser
    I am interested in getting the spec of a machine, because I am thinking getting a similar server. What I am mostly interested in knowing is the number of cores / CPUs / etc., the amount of memory, the speed of the CPUs, the CPU cache size, and any other detail which is important for performance. My question is two-fold: Which parameters should I be interested in other than the ones I specified above? Is there an easy way to read them off the machine in Linux? cat /proc/cpuinfo reveals a lot about the CPUs, for example... What about memory (would rather not rely on top), etc?

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  • How to configure a Logitech USB headset on Fedora 14 [closed]

    - by Humble Debugger
    I have a Logitech USB headset http://www.amazon.com/gp/product/B003NREDG4 but I can't hear anything nor input anything through it. I am working on a Fedora 14 desktop. cat /proc/asound/cards 0 [Intel ]: HDA-Intel - HDA Intel HDA Intel at 0xfebdc000 irq 51 2 [Headset ]: USB-Audio - Logitech USB Headset Logitech Logitech USB Headset at usb-0000:00:1d.0-2, full speed /sbin/lsmod | grep -c snd 14 lsusb Bus 008 Device 002: ID 046d:c529 Logitech, Inc. Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 006 Device 004: ID 046d:0a0b Logitech, Inc. ClearChat Pro USB Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Please advise

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  • C++ Thread level constants

    - by Gokul
    Is there a way by which we can simulate thread level constants in C++? For example, if i have to make a call to template functions, then i need to mention the constants as template level parameters? I can use static const variables for template metaprogramming, but they are process level constants. I know, i am asking a question with a high probability of 'No'. Just thought of asking this to capitalize on the very rare probability :)) Thanks, Gokul.

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  • 2D animations for Android, IOS, web

    - by David Phillips
    Working on Windows 7 platform, I'm interested in creating an app that could run on Android devices (phone or tablet), IOS devices (iPhone, iPad), and the web. First target would be Android. Do you remember those old Arthur Murray footstep diagrams to teach dancing? I want to do the same thing, but animate the steps, so the user can play them all, as well as step forward or backward thru them at their own pace. Perhaps one could generate an animated GIF and then play it on the platform. So there would seem to be two parts to this: 1) A good way to generate the animation images. I can, for example, see using SketchUp - something I know - for this. But is there something better it would be worth investing in? And, 2) How to play the result, including options for playback speed control, and even forward/backward stepping? Ideally a single, or easily adaptable player to the three different OS platforms.

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  • Rate of UDP packet loss over WLAN

    - by Martin
    While testing something with TFTP I noticed lots of timeouts (and slow speed as result) when I used my WLAN - and no problems when using a network cable. A quick test program sending/receiving UDP revealed that there are about 3-5% packets lost. While it's obvious that WLAN has to be less reliable than LAN, I have no knowledge what loss rates are considered 'normal' - and when there is a need to further investigate the network infrastructure. Are there 'typical' packet loss rates on WLAN (and other network technologies e.g. PowerLAN, WAN, ...? Thanks

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  • Internet connection too slow

    - by user23950
    I now think that it is the ISP. After a full scan of my system. With super antispyware, avast, norton and spybot. Internet connection is still slow. And the truth is we have recently upgraded the connection from 512 kbps to 768. And I get a .25 Mbps at speedtest.net which is equivalent to 256 Kbps. Its not even half of the advertised speed. Is it normal for ISP's to just limit your bandwidth if you are always downloading something from the internet? Are they entitled to do this.

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  • Web server suddenly stopped working

    - by wezten
    I have a web server, which was working fine. It also was an FTP server and a Windows Remote Desktop server, all working fine. Someone called our ISP to increase the internet speed, and suddenly nothing works - I can connect with Teamviewer, but HTTP, FTP & RD doesn't work. Disabled firewall. Ran Wireshark - the packets don't come through at all. Set the webserver to port 20111, in case the ISP is blocking port 80, and again, the packets didn't come through at all. (localhost:20111 works fine) Port forwarding is set up for ports 80, 21, 3389 & 20111 to 10.0.0.32 (which is the correct address - checked with ipconfig). Restarted router and computer. I would be very grateful for any help.

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  • Linux: Limiting data throughput (pipe) in bytes per second?

    - by sdaau
    Hi all, I was wandering if there is a Linux program that can limit data throughput of a pipe - in actual bytes per second?. From what I gather, applicable for the purposes would be bfr, however, it has been removed from Debian (Removal candidate: bfr) cpipe, however, it seems the lowest resolution it will support is kB/s, meaning that buffer writes can still reach MB/s ([SOLVED] Is there a program to limit terminal pipe speed? - Page 2 - Ubuntu Forums) What I'd want is to be able to specify something like cat example.txt | ratelimit -Bps 100 > /dev/ttyUSB0 ... and actually have a single byte from example.txt sent each 1/100 = 0.01 sec (or 10 ms) to 'output'.. Thanks in advance for any suggestions, Cheers!

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  • Which is the "best" data access framework/approach for C# and .NET?

    - by Frans
    (EDIT: I made it a community wiki as it is more suited to a collaborative format.) There are a plethora of ways to access SQL Server and other databases from .NET. All have their pros and cons and it will never be a simple question of which is "best" - the answer will always be "it depends". However, I am looking for a comparison at a high level of the different approaches and frameworks in the context of different levels of systems. For example, I would imagine that for a quick-and-dirty Web 2.0 application the answer would be very different from an in-house Enterprise-level CRUD application. I am aware that there are numerous questions on Stack Overflow dealing with subsets of this question, but I think it would be useful to try to build a summary comparison. I will endeavour to update the question with corrections and clarifications as we go. So far, this is my understanding at a high level - but I am sure it is wrong... I am primarily focusing on the Microsoft approaches to keep this focused. ADO.NET Entity Framework Database agnostic Good because it allows swapping backends in and out Bad because it can hit performance and database vendors are not too happy about it Seems to be MS's preferred route for the future Complicated to learn (though, see 267357) It is accessed through LINQ to Entities so provides ORM, thus allowing abstraction in your code LINQ to SQL Uncertain future (see Is LINQ to SQL truly dead?) Easy to learn (?) Only works with MS SQL Server See also Pros and cons of LINQ "Standard" ADO.NET No ORM No abstraction so you are back to "roll your own" and play with dynamically generated SQL Direct access, allows potentially better performance This ties in to the age-old debate of whether to focus on objects or relational data, to which the answer of course is "it depends on where the bulk of the work is" and since that is an unanswerable question hopefully we don't have to go in to that too much. IMHO, if your application is primarily manipulating large amounts of data, it does not make sense to abstract it too much into objects in the front-end code, you are better off using stored procedures and dynamic SQL to do as much of the work as possible on the back-end. Whereas, if you primarily have user interaction which causes database interaction at the level of tens or hundreds of rows then ORM makes complete sense. So, I guess my argument for good old-fashioned ADO.NET would be in the case where you manipulate and modify large datasets, in which case you will benefit from the direct access to the backend. Another case, of course, is where you have to access a legacy database that is already guarded by stored procedures. ASP.NET Data Source Controls Are these something altogether different or just a layer over standard ADO.NET? - Would you really use these if you had a DAL or if you implemented LINQ or Entities? NHibernate Seems to be a very powerful and powerful ORM? Open source Some other relevant links; NHibernate or LINQ to SQL Entity Framework vs LINQ to SQL

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  • Resize form objects in Java

    - by PeerFull
    I have a Java applet, which is a form that draw shapes into it (Rect, Oval, Line). Each shape is represented by 2 points and can draw itself to the form. When the JApplet form resizes, I need to resize the shapes also while keeping the aspect ratio. I didn't find an high quality solution for doing this that solves this problem. Tried to write a solution from this, but it came up as lousy when tested, Can someone publish an example code for doing that please?

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  • Super slow time machine backup on my mac

    - by lowellk
    I just got a new 2TB drive which I'm trying to use as a time machine drive for my mac which has a 1TB drive. On my first time trying to back it up, I'm getting terrible throughput, not even 1GB per day (it's been running for 36 hours now). I erased the disk and tried to copy a large file to it and got the same slow speed. What can I do to diagnose this? Are there any tools which can inspect the disk and tell me if it's messed up? Thanks!

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  • VMware - Broadcom 1000Gbps NIC does not link at 100Mbps to a Cisco switch port

    - by Spirit
    Today we've stumbled on a very awkward situation with our VMWare Server. The server is with ESX 3.5 that has a 1Gbps NIC. We bought a brand new managed Cisco Linksys switch with 10/100Mbps interface ports but when we plugged the cable in one of the ports the link simply does not wanted to activate :S... Does anyone with more VMware experience have ever had similar problem? From what I know is that 1Gbps NICs are backwards compatible with 100Mbps switches. This is what we've tryed so far but with no success: Tryed: http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1004089 Tryed to modify the /etc/modules.conf folowing the guide from this article http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=813 After the changes I have restarted the networking services using # service network restart, # service mgmt-vmware restart and # service vmware-vpxa restart It seems that no matter how many times, or whatever approach/method (GUI or Shell) we try to change the speed and duplex of the network adapter and to force it to 100mbps it only accepts 1Gbps .. I am starting to go nuts :@

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  • Application security issues to consider

    - by user279521
    I am working on the design of a high security application (involving financial information, personal information etc). I need to identify what security measures (application level) will be implemented. The application will involve sending data to and from a database, user login, import export to csv, txt files, and print function. What security features do I need to consider for such an application. (SQL injection for starters) ?

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  • X264 encoding using Opencv

    - by user573193
    I am working with a high resolution camera: 4008x2672. I a writing a simple program which grabs frame from the camera and sends the frame to a avi file. For working with such a high resolution, I found only x264 codec that could do the trick (Suggestions welcome). I am using opencv for most of the image handling stuff. As mentioned in this post http://doom10.org/index.php?topic=1019.0 , I modified the AVCodecContext members as per ffmpeg presets for libx264 (Had to do this to avoid broken ffmpeg defaults settings error). This is output I am getting when I try to run the program [libx264 @ 0x992d040]non-strictly-monotonic PTS 1294846981.526675 1 0 //Timestamp camera_no frame_no 1294846981.621101 1 1 1294846981.715521 1 2 1294846981.809939 1 3 1294846981.904360 1 4 1294846981.998782 1 5 1294846982.093203 1 6 Last message repeated 7 times [avi @ 0x992beb0]st:0 error, non monotone timestamps -614891469123651720 = -614891469123651720 OpenCV Error: Unspecified error (Error while writing video frame) in icv_av_write_frame_FFMPEG, file /home/ajoshi/ext/OpenCV-2.2.0/modules/highgui/src/cap_ffmpeg.cpp, line 1034 terminate called after throwing an instance of 'cv::Exception' what(): /home/ajoshi/ext/OpenCV-2.2.0/modules/highgui/src/cap_ffmpeg.cpp:1034: error: (-2) Error while writing video frame in function icv_av_write_frame_FFMPEG Aborted Modifications to the AVCodecContext are: if(codec_id == CODEC_ID_H264) { //fprintf(stderr, "Trying to parse a preset file for libx264\n"); //Setting Values manually from medium preset c-me_method = 7; c-qcompress=0.6; c-qmin = 10; c-qmax = 51; c-max_qdiff = 4; c-i_quant_factor=0.71; c-max_b_frames=3; c-b_frame_strategy = 1; c-me_range = 16; c-me_subpel_quality=7; c-coder_type = 1; c-scenechange_threshold=40; c-partitions = X264_PART_I8X8 | X264_PART_I4X4 | X264_PART_P8X8 | X264_PART_B8X8; c-flags = CODEC_FLAG_LOOP_FILTER; c-flags2 = CODEC_FLAG2_BPYRAMID | CODEC_FLAG2_MIXED_REFS | CODEC_FLAG2_WPRED | CODEC_FLAG2_8X8DCT | CODEC_FLAG2_FASTPSKIP; c-keyint_min = 25; c-refs = 3; c-trellis=1; c-directpred = 1; c-weighted_p_pred=2; } I am probably not setting the dts and pts values which I believed ffmpeg should be setting it for me. Any sugggestions welcome. Thanks in advance

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  • How do I usb tether my Cyanogen modded G1's internet connection to my Toshiba Tecra 8000 running Xubuntu?

    - by atticus
    I have usb-tethering enabled in my phone. It works fine with Vista. When I plug my phone into my Tecra 8000 laptop running Xubuntu, dmesg shows: "usb 1-1: new full speed USB device using uhci_hcd and address 8". I see that the OS has detected it as a storage device, but I can't get it to function correctly as a network device. /dev/us* shows no usb0, but it does show /dev/usbdev1.1_ep00 /dev/usbdev1.1_ep81 /dev/usbdev1.8_ep00 ... usbdev1.8_ep83 I could just use the wireless tether app for android, but I can't get my Netgear wg511 v2 (made in China) wireless card to work in this laptop either. But that's another post for later.

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