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Articles indexed in November 2012

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  • VB 2010 LOGIN 3-TIMES LOOP [migrated]

    - by stargaze07
    How to put a loop on my log in code it's like the program will end if the user inputs a wrong password/username for the third time? At this point I'm having a hard time putting the loop code. This is my LogIn Code in VB 2010 Private Sub btnLogIn_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnLogIn.Click Me.Refresh() Dim login = Me.TblUserTableAdapter1.UsernamePasswordString(txtUser.Text, txtPass.Text) If login Is Nothing Then MessageBox.Show("Incorrect login details", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error) Else Dim ok As DialogResult ok = MessageBox.Show("Login Successful", "Dantiña's Catering Maintenance System", MessageBoxButtons.OK, MessageBoxIcon.Information) MMenu.Show() MMenu.lblName.Text = "Welcome " & Me.txtUser.Text & " !" If txtPass.Text <> "admin" Then MMenu.Button1.Enabled = False ProdMaintenance.GroupBox1.Visible = True MMenu.Button2.Enabled = True MMenu.Button3.Enabled = True MMenu.Button4.Enabled = True Else MMenu.Button1.Enabled = True ProdMaintenance.GroupBox1.Visible = True MMenu.Button2.Enabled = True MMenu.Button3.Enabled = True MMenu.Button4.Enabled = True End If Me.Refresh() Me.Hide() End If End Sub

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  • Career growth in Adobe Flex or HTML5? [closed]

    - by Raj
    I have been working as a java/j2ee developer in a mnc from past 2 years. I have worked on javascript,jsp,struts,html,css on the 1st project. Now I am working on javascript/xsl/Adobe Flex in current project for 6 months. I am getting calls for java/flex developer from jobsites. Recently got a call for a Javascript/HTML5 developer. Is it a good option compared to Adobe Flex in current project? Please guide me among these technologies which will take my career in right direction and good growth which keeps in demand.

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  • How to design database for tests in online test application

    - by Kien Thanh
    I'm building an online test application, the purpose of app is, it can allow teacher create courses, topics of course, and questions (every question has mark), and they can create tests for students and students can do tests online. To create tests of any courses for students, first teacher need to create a test pattern for that course, test pattern actually is a general test includes the number of questions teacher want it has, then from that test pattern, teacher will generate number of tests corresponding with number of students will take tests of that course, and every test for student will has different number of questions, although the max mark of test in every test are the same. Example if teacher generate tests for two students, the max mark of test will be 20, like this: Student A take test with 20 questions, student B take test only has 10 questions, it means maybe every question in test of student A only has mark is 1, but questions in student B has mark is 2. So 20 = 10 x 2, sorry for my bad English but I don't know how to explain it better. I have designed tables for: - User (include students and teachers account) - Course - Topic - Question - Answer But I don't know how to define associations between user and test pattern, test, question. Currently I only can think these: Test pattern table: name, description, dateStart, dateFinish, numberOfMinutes, maxMarkOfTest Test table: test_pattern_id And when user (is Student) take tests, I think i will have one more table: Result: user_id, test_id, mark but I can't set up associations among test pattern and test and question. How to define associations?

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  • Rails vs. Drupal [closed]

    - by joker13
    I was querying indeed.com/salary to investigate general market trends. When comparing ruby on rails with drupal, you would observe a substantial difference between these two. I'm not sure if the data on indeed.com is reliable or not but I'd appreciate your comments if you have ever tried both rails and drupal. Actually I am a .net developer considering an alternative to my asp.net mvc skills and I like to learn some non-microsoft web programming skills as well.

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  • How do you overcome interview anxiety when writing code?

    - by Kyle Trauberman
    I have test anxiety, and when interviewing I often get so stressed that I have difficulty completing tasks in the interview that I normally wouldn't have trouble completing. I recently went through an interview where I was so nervous that I feel like I did poorly on one coding question in particular, something that I would normally have no trouble with otherwise. How do you overcome nervousness and anxiety when interviewing? Is it wise to inform the interviewer ahead of time that you have anxiety?

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  • Because of over incumbent patents, is it possible to safely develop any software without the risk of legal action?

    - by Chris Barry
    Take this System and method for restricting user access rights on the internet based on rating information stored in a relational database There are hundreds of thousands of them out there. So basically you can't program anything really without breaching one of thousands of software patents. If your program succeeds you will be sued by someone! Does this happen all the time and people get silenced? Do trendy startups get hit by things like this? Surely all major web properties would have been hit by the example above by AT&T?

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  • Search multiple tables

    - by gilden
    I have developed a web application that is used mainly for archiving all sorts of textual material (documents, references to articles, books, magazines etc.). There can be any given number of archive tables in my system, each with its own schema. The schema can be changed by a moderator through the application (imagine something similar to a really dumbed down version of phpMyAdmin). Users can search for anything from all of the tables. By using FULLTEXT indexes together with substring searching (fields which do not support FULLTEXT indexing) the script inserts the results of a search to a single table and by ordering these results by the similarity measure I can fairly easily return the paginated results. However, this approach has a few problems: substring searching can only count exact results the 50% rule applies to all tables separately and thus, mysql may not return important matches or too naively discards common words. is quite expensive in terms of query numbers and execution time (not an issue right now as there's not a lot of data yet in the tables). normalized data is not even searched for (I have different tables for categories, languages and file attatchments). My planned solution Create a single table having columns similar to id, table_id, row_id, data Every time a new row is created/modified/deleted in any of the data tables this central table also gets updated with the data column containing a concatenation of all the fields in a row. I could then create a single index for Sphinx and use it for doing searches instead. Are there any more efficient solutions or best practises how to approach this? Thanks.

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  • Rendering trillions of "atoms" instead of polygons?

    - by Baring
    I just saw a video about what the publishers call the "next major step after the invention of 3D". According to the person speaking in it, they use a huge amount of atoms grouped into clouds instead of polygons, to reach a level of unlimited detail. They tried their best to make the video understandable for persons with no knowledge of any rendering techniques, and therefore or for other purposes left out all details of how their engine works. The level of detail in their video does look quite impressive to me. How is it possible to render scenes using custom atoms instead of polygons on current hardware? (Speed, memory-wise) If this is real, why has nobody else even thought about it so far? I'm, as an OpenGL developer, really baffled by this and would really like to hear what experts have to say. Therefore I also don't want this to look like a cheap advert and will include the link to the video only if requested, in the comments section.

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  • Ubuntu 12.10 on Acer Aspire S3: screen resolution

    - by sashkello
    I'm new to linux and recently installed Ubuntu 12.10 alongside Windows on my laptop. Initially 3D screen effects (i.e., Docky) were not working and I tried different things like installing and reinstalling nvidia-current, compiz etc... Now I think I messed up the display drivers completely... Although all the effects are now working, I can't get any screen resolution other than 640x480. Can anyone please tell me how to find out exactly what's wrong and ways of fixing it?

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  • Which version of Ubuntu is recommended for app developers?

    - by Wes
    I've searched around Ask Ubuntu and the App Developer site, but I can't seem to find the answers to my questions. I'm wanting to get back into programming, and I'd eventually like get into app development for Ubuntu, but I'm not sure where to get started. Which version of Ubuntu is currently recommended for app development, especially for those wanting to publish their apps to the Software Centre? Should app developers use the current LTS release, or, can any of the new releases be used? Should developers use the 32-bit or 64-bit edition of Ubuntu, or does this not matter? What effect would the above choices have on the eventual publication of an app? I'm truly sorry if this has been covered elsewhere. Cheers Wes

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  • Is it possible to to have all pre-unity effects in latest ubuntu?

    - by iamserious
    I've been an Ubuntu dilettante for a long, long time. It is not my primary OS but I've always had it on all my laptops and desktop machines for over 8 years now. What I really, really like(d) about ubuntu (or linux, for that matter) was the effects - desktop cube, wobbly windows and other such "cool" effects. Needless to say, I was heartbroken with Unity. I gave it the benefit of doubt and tried to like it, tried to love it. Stuck with it for over a year. But I recently came to the conclusion that unity is really not for me. I want my old ubuntu back, with all it's eye candy effects. I tried messing around with ccsm but it only seemed to make the matters worse. Now, I could just install the old version of ubuntu - but getting my bamboo pen and Nvidia to work with it is a son of a.. anyway, the point is, old version of ubuntu is outdated to work with my newer machines. I'd rather have a new version of ubuntu but without unity- I don't know what the eye candy stuff is called - and so my question is this - Is it possible to rid ubuntu of unity and get all the eye candy stuff and if it is not possible, can you please advice me what other linux supports all the effects, please? I've searched high and low for unity alternatives but didn't find any satisfactory solutions; so I think my question is mainly about what other linux flavour is better suited for the task - sorry if it is out of topic.

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  • Differences between "apache"'s installations

    - by JustTrying
    Are there any differences between installing Apache httpd using sudo apt-get install apache2 (as the guide of Ubuntu says - https://help.ubuntu.com/12.04/serverguide/httpd.html ) or following the steps on the Apache documentation (http://httpd.apache.org/docs/2.4/install.html#overview)? I tried both ways; in the first case (using apt-get) the server seems to work - I open a browser page and I got it. In the second case I need other packages (apr, apr-util and pcre) and so I abandoned the attempt.

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  • How to drag widgets from monitor to monitor in kubuntu?

    - by Mien
    I have Kubuntu 12.04 on my Dell Inspiron. I use an extern monitor as my default one, and my laptop monitor as my second monitor. I can place widgets on the extern (default) screen, but when I drag them to the laptop (second) screen, they disappear. I can put widgets on the second screen, if I open the widget screen on that screen, but I can't drag them to my first monitor. How can I switch between monitors for the widgets?

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  • How can I downgrade my version of Evolution to the one used in Ubuntu 11.04?

    - by Johnny
    I just upgraded, and like a few other users I had issues with Evolution email after the upgrade from 11.04 to 11.10 and then 12.04. I know to make backups, but in this case I stupidly didn't think that the program would be changed (Firefox wasn't modified at all), and so I failed to make a backup. Three days later I am still having issues, and recovering the emails is proving to be difficult with only partial recovery or it not working at all. My question is, can I add in some source to use the 11.04 version of Evolution, since that version was working fine and would know what to do with the current files (Inbox, Outbox, etc.) I also noticed that Evolution's restore feature said it changed the way emails are handled, so it seems like a downgrade could put everything back to normal. Worst case scenario, I start over, but I wanted to try everything first. Thanks in advance! I'm also open to any suggestions for restoring the old emails files to the current version of Evolution.

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  • usb ntfs pen drive and hard drive not working after connection to ubuntu

    - by lemon619
    as said in the title first of all i connected a usb key (ntfs formatted) with data in it, on ubuntu 12.04, after i disconnected it i was no more able to access the usb key neither from windows nor from ubuntu 12.04. The system asks me to format my usb key Just now i connected a hard drive ntfs formatted with data in it to ubuntu 12.04. I ejected correctly the hard drive and connected it to windows, and the system asks me to format my hard drive? same as the usb key Can someone help me please ? Would really appreciate!

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  • Mount problem on 12.10

    - by Malcolm Osborne
    I've just done an online upgrade from 12.04 to 12.10 - seemed to have gone well, but now I cannot access other drives (partitions) on my PC, also flash drives. Get error Unable to mount location - Adding read ACL for uid 1000 tomedia/malcolm failed':Operation not supported. Content of mount -l: /dev/sdb8 on / type ext2 (rw,errors=remount-ro) proc on /proc type proc (rw,noexec,nosuid,nodev) sysfs on /sys type sysfs (rw,noexec,nosuid,nodev) none on /sys/fs/fuse/connections type fusectl (rw) none on /sys/kernel/debug type debugfs (rw) none on /sys/kernel/security type securityfs (rw) udev on /dev type devtmpfs (rw,mode=0755) devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620) tmpfs on /run type tmpfs (rw,noexec,nosuid,size=10%,mode=0755) none on /run/lock type tmpfs (rw,noexec,nosuid,nodev,size=5242880) none on /run/shm type tmpfs (rw,nosuid,nodev) none on /run/user type tmpfs (rw,noexec,nosuid,nodev,size=104857600,mode=0755) binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,noexec,nosuid,nodev) gvfsd-fuse on /run/user/malcolm/gvfs type fuse.gvfsd-fuse (rw,nosuid,nodev,user=malcolm)

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  • partitioning ssd +hdd

    - by ALdaperan
    I recently bought an ssd drive 128 gb and i would like yo have your suggestions on partitiong and installing ubuntu 12.10 on it. First of all my drives are : HDD 640 Gb SSD Samsung 830 series 128 Gb Whats the best partitiong for theese drives ? 128 Gb is sure enormous amount of space only for / (root) . Is it a good choice if i make 2 partitions on ssd (20 Gb / and 100 /home) and leave hdd as backub drive for my data (files,movies,music etc) ? In this case what mount point must have hdd ? Can you suggest me the best partitiong for my drives ?

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  • is it possible for windows viruses when downloaded through ubuntu affect my windows os

    - by fr33c0untry
    I know that Ubuntu is immune to virus so there is no question of it getting infected while browsing the net.however i frequently transfer files from my pendrive (which i get from other virus infested computers) to my own laptop and save it on the data drive which is shared by both windows and ubuntu.i would like to know if there is a chance for windows viruses which might get saved and then infect it whenever i switch to windows later on.its ironic that i scan my pendrive using avast on windows and then save all my files to my hard drive to keep my laptop free from virus eventhough i have ubuntu.can anyone suggest an alternative.thanks in advance.

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  • Using 12.04 installation as a persistent pen drive

    - by Cawas
    Disclaimer: I aim to build a self contained pen drive with my application inside, so no matter about updates. Maybe I'm looking at the wrong linux distribution to do this... Please let me know if you think so. I've tried knoppix and even lubuntu, but they don't come with enough "drivers" for Unity3D to work. Creating a custom live persistent pen drive is a real pain and I'm trying for 1 day without any success. Sure, being able to do it would probably be ideal and occupy the minimum space. Using the installation image on a pen drive, however, is good enough and is really easy to create. We can even do it from any OS, using UNetBootin, LiLi USB Creator or some other methods. Straight forward. Some recommend installing it on a pen drive. But that requires a lot of space and, I believe, it won't behave as good as something meant to be installed on a usb disk, because of memory management. So, there are only a few negative points on using the installation image that I can think of. Question here, is how to remove those drawbacks: Having to press "Try Ubuntu". That's the big one. Couldn't find how. Unable to load everything on memory and keep on running without the pen drive (like this) Unable to remove "Install Ubuntu 12.04 LTS" app. Setting the ISO to use maximum amount of space for the OS will leave pen drive with zero space left and any file saved within it from ubuntu is inaccessible from the outside (when plugin the pen drive and not booting from it). Am I missing something? Can those points be fixed?

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  • Time tracker for lxde

    - by deshmukh
    I have only recently started using lxde. And I am liking it. It is blazing fast, not-at-all resource hungry and just does what I want. The only thing I am missing is a time tracker tool. I have been using Hamster Time Tracker on gnome for quite some time. In lxde, I can still launch the application. But there are no reminders when the time limit is up, etc. The time tracker is just another window. Is there any way to get hamster working in lxde with notifications for time-up and an icon in the panel, etc.? Alternatively, is there another application like Hamster that will do all that Hamster does and WORKS in lxde?

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  • Very slow startup after update to 12.04

    - by M Legoh
    My hardware: Dell Latitude D600 laptop Processor: Intel Pentium (r) 1.8 GHz Memory 1.2 GiB Graphics R200 (RV250 4C66) x86/MMX/SSE2 TCL DRI2 Disk: 37.7 gb I did an update from 11.?? using the automatic system update that pops up when you switch/log on. Ever since then when I switch on the machine it takes approximately one hour to get to the login screen. Sometimes the actual login will take time too, but sometimes within a couple of minutes I am logged in. Once I am logged in I find I can work normally, the response is not swift, but is neither too slow that I cannot work. I was wondering if there was anything I could do to speed things up. I deliberately did not do a clean install from disk, because I did not want to loose settings on the machine.

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  • configuring and authenticating proxy on ubuntu 12.04 terminal

    - by awuni joshua
    I am very new to ubuntu, I decided to try it out two days ago. I am using proxy server [41.74.91.139 with user name and password]. I cant access any on-line resources both with the terminal, transmission(to download torrents), or Ubuntu software center. For firefox, I have configured it and can download .deb and other files but need direct access. Please give me step by step instruction as to how to configure and authenticate 12.04 terminal. Thank you

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  • Bluetooth no longer working?

    - by user68733
    I am using a Toshiba Portege A600 and have been using Ubuntu for about a year now. When I first installed Ubuntu "10.10", everything worked fine, including bluetooth. I was able to send and receive files. After upgrading to 11.04 and then to 11.10, bluetooth functionality decreased. I was able to view bluetooth devices, but not be able to pair or connect to them. Now, on 12.04, bluetooth is no longer recognised at all. When I open up the Bluetooth settings application, it says "No Bluetooth Adapters found". What is the cause of this, and how can I fix it. I have included the output of sudo lshw. http://pastebin.com/09w0vkfu Thanks!

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  • Traktor Audio 2 DJ soundcard configuration

    - by Jaroslav
    I have a Traktor Audio 2 DJ USB sound card (the first version of what it's now called simply Traktor Audio 2) The problem in settings it only sees one output, when there should be two (I need that for Mixxx etc.) Also I want to be able set the sample rate to one of these: 44.1, 48, 88.2, 96 kHz or at least check which one is set. Additionally if possible setting the latency would be an advantage. Some info: $ aplay -l **** List of PLAYBACK Hardware Devices **** card 0: HDMI [HDA ATI HDMI], device 3: HDMI 0 [HDMI 0] Subdevices: 1/1 Subdevice #0: subdevice #0 card 1: TraktorAudio2 [Traktor Audio 2], device 0: Traktor Audio 2 [Traktor Audio 2] Subdevices: 1/2 Subdevice #0: subdevice #0 Subdevice #1: subdevice #1 $ cat /proc/asound/cards 0 [HDMI ]: HDA-Intel - HDA ATI HDMI HDA ATI HDMI at 0xfdcfc000 irq 45 1 [TraktorAudio2 ]: snd-usb-caiaq - Traktor Audio 2 Native Instruments Traktor Audio 2 (usb-0000:00:1d.7-8)

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  • cracked dreamweaver and photoshop - private & professional use [closed]

    - by Céline Chevalier
    I am thinking of downloading the cracked versions of dreamweaver and photoshop. Am planning to do some private projects but also use it when working as a developer (professionally). Is it risky and likely to get caught? How? Not sure if they hack into my pc, find out who I am and accuse me once it is clear that I am (or my pc is) using it, or is this just naive thinking of a new inexperienced web developer?

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