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  • Why am I getting this error : "ExecuteReader: Connection property has not been initialized." [migrated]

    - by Olga
    I'm trying to read .csv file to import its contents to SQL table I'm getting error: ExecuteReader: Connection property has not been initialized. at the last line of this code: Function ImportData(ByVal FU As FileUpload, ByVal filename As String, ByVal tablename As String) As Boolean Try Dim xConnStr As String = "Driver={Microsoft Text Driver (*.txt; *.csv)};dbq=" & Path.GetDirectoryName(Server.MapPath(filename)) & ";extensions=asc,csv,tab,txt;" ' create your excel connection object using the connection string Dim objXConn As New System.Data.Odbc.OdbcConnection(xConnStr.Trim()) objXConn.Open() Dim objCommand As New OdbcCommand(String.Format("SELECT * FROM " & Path.GetFileName(Server.MapPath(filename)), objXConn)) If objXConn.State = ConnectionState.Closed Then objXConn.Open() Else objXConn.Close() objXConn.Open() End If ' create a DataReader Dim dr As OdbcDataReader dr = objCommand.ExecuteReader()

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  • How to use call web service action in SharePoint2013 workflow

    - by ybbest
    In SharePoint2013, you can use call web service action and loop. In this post, I will show you how to achieve this. 1. Create a List workflow called CallWebService 2. Create a variable called listurl and assign the value to http://sp2010/_vti_bin/listdata.svc 3. Create a dictionary variable called RequestHeaders and add the following key value pairs. 4. Call the web service with the HttpHeaders you just build in the previous step and store the response in the variable ResponseContent. 5. The ResponseContent variable is the Dynamic values (in SharePoint designer it will be called dictionary type) and it is new feature for SharePoint2013 workflow. We can use the following actions to count the number items in the variable. 6. You can use loop in SharePoint 2013 workflow and out each list title as shown below.

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  • Gerrit, git and reviewing whole branch

    - by liori
    I'm now learning Gerrit (which is the first code review tool I use). Gerrit requires a reviewed change to consist of a single commit. My feature branch has about 10 commits. The gerrit-prefered way is to squash those 10 commits into a single one. However this way if the commit will be merged into the target branch, the internal history of that feature branch will be lost. For example, I won't be able to use git-bisect to bisect into those commits. Am I right? I am a little bit worried about this state of things. What is the rationale for this choice? Is there any way of doing this in Gerrit without losing history?

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  • Atheros AR8132 Ethernet refuses to connect after suspend

    - by Ramesh Patel
    I'm having an issue where my ethernet card (Atheros Communications Inc. AR8132 Fast Ethernet (rev c0)) refuses to recognize when a network cable is plugged in after a suspend. This is dmesg after suspending: [135897.712049] atl1c 0000:02:00.0: MAC state machine can't be idle since disabled for 10ms second [135897.743729] ADDRCONF(NETDEV_UP): eth0: link is not ready [135898.541804] ADDRCONF(NETDEV_UP): eth1: link is not ready [135900.452077] atl1c 0000:02:00.0: irq 47 for MSI/MSI-X [135900.672262] atl1c 0000:02:00.0: Error get phy ID [135900.673060] ADDRCONF(NETDEV_UP): eth0: link is not ready [135900.674140] ADDRCONF(NETDEV_UP): eth0: link is not ready [135925.604052] [135935.776051] eth1: no IPv6 routers present eth0 is the ethernet card and eth1 is the wlan card (Broadcom Corporation BCM43224 802.11a/b/g/n (rev 01)). The ethernet card uses the atl1c driver and the wlan card uses the wl driver. Sorry, should have mentioned as well, running Ubuntu 12.04 with kernel 3.2.0-25-generic.

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  • How to know which fields of a record are updated in saving the edit? [closed]

    - by Luiz Maffort
    I'm recording in a log table all that is changed in a given table, so this need to know when for example the User to change the status from active to inactive. With this information I will write in my log table information of which record was changed, by whom and what was the value of old and new. If I instantiate an object before: db.Entry(chamados).State = EntityState.Modified; I can even compare, but this error appears at runtime. *An object with the same key already exists in the ObjectStateManager. The ObjectStateManager cannot track multiple objects with the same key. * Podem me ajudar por favor?

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  • Ensure house map maze with lifts can be solved?

    - by Philipp Lenssen
    In my game we see the floors of a house from the side, and the hero can take lifts -- a lift either goes up (to the next lift upwards), or down (to the next lift downwards), depending on the arrow as shown, and there's always a pair of exactly two lifts connected. That's the only way the hero can move vertically, though he can freely move horizontally. The house map is a randomized 11x5 grid with different items, and unpassable walls to the far left, far right, and sometimes in one of the two middle positions: My question: How can I ensure the map is always randomized yet always solvable and that the hero, starting at the left side of the bottom floor, can always leave it via any upwards-pointing lift at the top floor? For what it's worth I'm using the Lua language for development. Thanks so much!

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  • Physical effects of long term keyboard use- what does the science say and what factors affect it?

    - by glenatron
    This question asks about the ergonomics of a particular keyboard for long programming hours, what I would like to know is about the ergonomics of using a keyboard in general. What are the most significant risks associated with it and how can they best be mitigated? Do the "ergonomic" keyboard designs make a difference and if so which design is most effective? If not do other factors such as wrist-rests, regular exercise or having a suitable height of chair or desk make a difference? Do you have any direct experience of problems deriving from keyboard use and if so how did you resolve them? Is there any good science on this and if so what does it indicate? Edited to add: Wikipedia suggests that there are no proven advantages to "ergonomic" keyboards, but their citation seems pretty old- is that still the current state of play?

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  • Should I rely on externally-hosted services?

    - by Mattis
    I am wondering over the dangers / difficulties in using external services like Google Chart in my production state website. With external services I mean them that you can't download and host on your own server. (-) Potentially the Google service can be down when my site is up. (+) I don't have to develop those particular systems for new browser technologies, hopefully Google will do that for me. (-) Extra latency while my site fetch the data from the google servers. What else? Is it worth spending time and money to develop my own systems to be more in control of things?

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  • Unmet Dependencies when I try to install wine or skype

    - by Andres
    I have a dell inspiron 64 bit and I'm running both windows 7 and Ubuntu in dual boot I am having trouble installing skype and wine. When I try to install skype etc I get the following error: sudo apt-get install ia32-libs Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are Blockquote using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation The following packages have unmet dependencies: ia32-libs : Depends: ia32-libs-multiarch but it is not installable E: Unable to correct problems, you have held broken packages

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  • How to build a Singleton-like dependency injector replacement (Php)

    - by Erparom
    I know out there are a lot of excelent containers, even frameworks almost entirely DI based with good strong IoC classes. However, this doesn't help me to "define" a new pattern. (This is Php code but understandable to anyone) Supose we have: //Declares the singleton class bookSingleton { private $author; private static $bookInstance; private static $isLoaned = FALSE; //The private constructor private function __constructor() { $this->author = "Onecrappy Writer Ofcheap Novels"; } //Sets the global isLoaned state and also gets self instance public static function loanBook() { if (self::$isLoaned === FALSE) { //Book already taken, so return false return FALSE; } else { //Ok, not loaned, lets instantiate (if needed and loan) if (!isset(self::$bookInstance)) { self::$bookInstance = new BookSingleton(); } self::$isLoaned = TRUE; } } //Return loaned state to false, so another book reader can take the book public function returnBook() { $self::$isLoaned = FALSE; } public function getAuthor() { return $this->author; } } Then we get the singelton consumtion class: //Consumes the Singleton class BookBorrower() { private $borrowedBook; private $haveBookState; public function __construct() { this->haveBookState = FALSE; } //Use the singelton-pattern behavior public function borrowBook() { $this->borrowedBook = BookSingleton::loanBook(); //Check if was successfully borrowed if (!this->borrowedBook) { $this->haveBookState = FALSE; } else { $this->haveBookState = TRUE; } } public function returnBook() { $this->borrowedBook->returnBook(); $this->haveBookState = FALSE; } public function getBook() { if ($this->haveBookState) { return "The book is loaned, the author is" . $this->borrowedbook->getAuthor(); } else { return "I don't have the book, perhaps someone else took it"; } } } At last, we got a client, to test the behavior function __autoload($class) { require_once $class . '.php'; } function write ($whatever,$breaks) { for($break = 0;$break<$breaks;$break++) { $whatever .= "\n"; } echo nl2br($whatever); } write("Begin Singleton test", 2); $borrowerJuan = new BookBorrower(); $borrowerPedro = new BookBorrower(); write("Juan asks for the book", 1); $borrowerJuan->borrowBook(); write("Book Borrowed? ", 1); write($borrowerJuan->getAuthorAndTitle(),2); write("Pedro asks for the book", 1); $borrowerPedro->borrowBook(); write("Book Borrowed? ", 1); write($borrowerPedro->getAuthorAndTitle(),2); write("Juan returns the book", 1); $borrowerJuan->returnBook(); write("Returned Book Juan? ", 1); write($borrowerJuan->getAuthorAndTitle(),2); write("Pedro asks again for the book", 1); $borrowerPedro->borrowBook(); write("Book Borrowed? ", 1); write($borrowerPedro->getAuthorAndTitle(),2); This will end up in the expected behavior: Begin Singleton test Juan asks for the book Book Borrowed? The book is loaned, the author is = Onecrappy Writer Ofcheap Novels Pedro asks for the book Book Borrowed? I don't have the book, perhaps someone else took it Juan returns the book Returned Book Juan? I don't have the book, perhaps someone else took it Pedro asks again for the book Book Borrowed? The book is loaned, the author is = Onecrappy Writer Ofcheap Novels So I want to make a pattern based on the DI technique able to do exactly the same, but without singleton pattern. As far as I'm aware, I KNOW I must inject the book inside "borrowBook" function instead of taking a static instance: public function borrowBook(BookNonSingleton $book) { if (isset($this->borrowedBook) || $book->isLoaned()) { $this->haveBook = FALSE; return FALSE; } else { $this->borrowedBook = $book; $this->haveBook = TRUE; return TRUE; } } And at the client, just handle the book: $borrowerJuan = new BookBorrower(); $borrowerJuan-borrowBook(new NonSingletonBook()); Etc... and so far so good, BUT... Im taking the responsability of "single instance" to the borrower, instead of keeping that responsability inside the NonSingletonBook, that since it has not anymore a private constructor, can be instantiated as many times... making instances on each call. So, What does my NonSingletonBook class MUST be in order to never allow borrowers to have this same book twice? (aka) keep the single instance. Because the dependency injector part of the code (borrower) does not solve me this AT ALL. Is it needed the container with an "asShared" method builder with static behavior? No way to encapsulate this functionallity into the Book itself? "Hey Im a book and I shouldn't be instantiated more than once, I'm unique"

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  • Is Haskell's type system an obstacle to understanding functional programming?

    - by FarmBoy
    I'm studying Haskell for the purpose of understanding functional programming, with the expectation that I'll apply the insight that I gain in other languages (Groovy, Python, JavaScript mainly.) I choose Haskell because I had the impression that it is very purely functional, and wouldn't allow for any reliance on state. I did not choose to learn Haskell because I was interested in navigating an extremely rigid type system. My question is this: Is a strong type system a necessary by-product of an extremely pure functional language, or is this an unrelated design choice particular to Haskell? If it is the latter, I'm curious what would be the most purely functional language that is dynamically typed. I'm not particularly opposed to strong typing, it has its place, but I'm having a hard time seeing how it benefits me in this educational endeavor.

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  • How to fix the apt-get -f install error [duplicate]

    - by Satish Patel
    This question already has an answer here: How do I fix a “Could not get lock /var/lib/dpkg/lock” problem? 12 answers I am getting continuous error when I run the command sudo apt-get -f install The output of the command is as follows: Reading package lists... Done Building dependency tree Reading state information... Done Correcting dependencies... Done The following extra packages will be installed: default-jre-headless icedtea-7-jre-jamvm openjdk-7-jre openjdk-7-jre-headless openjdk-7-jre-lib Suggested packages: fonts-ipafont-gothic fonts-ipafont-mincho ttf-telugu-fonts ttf-oriya-fonts ttf-kannada-fonts ttf-bengali-fonts The following NEW packages will be installed: default-jre-headless icedtea-7-jre-jamvm openjdk-7-jre openjdk-7-jre-headless openjdk-7-jre-lib 0 upgraded, 5 newly installed, 0 to remove and 28 not upgraded. 2 not fully installed or removed E: Could not get lock /var/cache/apt/archives/lock - open (11: Resource temporarily unavailable) E: Unable to lock directory /var/cache/apt/archives/ satish@satish-Inspiron-N5010 ~ $ please guide ASAP

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  • Python: Future as a major programming language?

    - by chrisw
    After reading some Python material and seeing some Python code a few years back I decided to give it a whirl. I decided to start with Python to solve the problems on ProjectEuler.net and was throughly impressed with the language. Since then I've went on to learn Django, and now use it primarily for my web applications. I would love to have a career programming in this language, however I fear the future of the language is currently in a state of uncertainness. With Google and other major companies embracing it there may be some hope, what are your thoughts on Python, do you see many job opportunities out there?

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  • What liability concerns do advertising vendors raise, and how can I address them?

    - by Beofett
    One of the websites I administer wants to provide free advertising in the form of direct links to vendors at an event they are running. Up until now, there has been no advertising whatsoever on the site (or any of our other sites). The site is for a for-profit business. The idea of implicit endorsement of any vendors we advertise has been raised, which brought up the question of what we need to do, if anything, to protect ourselves from any potential problems such endorsement might create. I know that many sites have clauses in their Terms of Service that state that (in a nutshell) they are not responsible for any problems or grievances between the visitors to the site and any vendor advertised or linked. Are there other steps that a website typically takes when considering advertising, such as getting the advertiser to provide some sort of certification that their ad will not violate any trademarks or copyrighted material?

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  • Is there any reason lazy initialization couldn't be built into Java?

    - by Renesis
    Since I'm working on a server with absolutely no non-persisted state for users, every User-related object we have is rolled out on every request. Consequently I often find myself doing lazy initialization of properties of objects that may go unused. protected EventDispatcher dispatcher = new EventDispatcher(); Becomes... protected EventDispatcher<EventMessage> dispatcher; public EventDispatcher<EventMessage> getEventDispatcher() { if (dispatcher == null) { dispatcher = new EventDispatcher<EventMessage>(); } return dispatcher; } Is there any reason this couldn't be built into Java? protected lazy EventDispatcher dispatcher = new EventDispatcher();

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  • ubuntu desktop installation problem, a lot of error messages

    - by veerendar
    Hi I am getting error messages while trying to install ubuntu 12.04 on my desktop(intel pentium D). and the error messages are: *checking battery state... [412.633532] end_request:I/O error .dev sr0, sector 1291684 [435.997503] SQUASHFS error: squashfs_readdata failed to readbloack 0x275fcda4 [435.9975xx] SQUASHFS error: unable to read fragment cache entry page [275fcda4] . . [524.000055] exception Emask 0x0 SAct 0x0SErr 0x0 action 0x6 frozen ata5.00 : cmd a0/00:00:00:08:00/00:00:00/00 tag0 pio 16392 in res 58 /00:02:00:08:00/00/a0 Emask 0xf(timeout) [524.000292] ata5.00 status : {DRDY DRQ} I was able to install on another pc(intel atom) but not on this pc(intel pentium D), Can any one help me in successful installation. Thanks!

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  • Is there a better approach to speech synthesis than text-to-speech for more natural output? [closed]

    - by Anne Nonimus
    We've all heard the output of text-to-speech systems, and for anything but very short phrases, it sounds very machine-like. The ultimate goal of speech synthesis systems is to pass a Turing test of hearing. Clearly, the state of the art in text-to-speech has much to improve. However, speech synthesis isn't restricted to just text-to-speech systems, and I'm wondering if other approaches have been tried with better success. In other words, has there been any work done (libraries, software, research papers, etc.) on natural speech synthesis other than text-to-speech systems?

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  • Fighting Cancer With Knowledge and Community: Oracle WebCenter at CPAC

    - by Brian Dirking
    There was a great article on CIO Magazine sometime back about how Cancer Treatment Centers of America are improving patient care with technology. And it is comforting to know you are getting state of the art care for you or your loved one when battling cancer. When patients and families take matters into their own hands, they often don't know where to turn to for information. The Canadian Partnership Against Cancer provides a one-stop shop that brings together the best information available in an easy to use website. Beyond finding information, CPAC provides an online community that can help extend knowledge, share experiences, and let people know they are not alone. You can hear more about this implementation from Mike Matthews of Deloitte in our upcoming online event, Transform Your Business by Connecting People, Processes, and Content. Mike is a partner at Deloitte and had first-hand experience in the CPAC implementation of Oracle WebCenter, which provides website publishing, search, and social community tools.

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  • cocos2d-x - object creation and management in game design

    - by Jason
    How do others keep track of everything going on in their games? I am working on a new game and I am quickly realizing everything that I need to keep track of. Example: Maybe a layerManager that keeps track of all the layers and what is happening for a particular scene. Maybe a sceneManager for sharing objects among scenes But then getting to game play itself, what if you have 100 objects on the screen each with its own state and happenings, there needs tobe a way to keep track of all of that. Drawing everything out is really helping me. Can anyone share with me how they go about object tracking/management? I am seeing a few different managers and then maybe even a parent object that manages the managers..is my thinking way off? Any design patterns that may be useful for me to read about? Update: doing some reading and maybe a Factory pattern might apply.

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  • unseen/unknown function definition in linux source

    - by Broncha
    Can any one please explain this piece of code I found in the linux kernel source. I see a lots of code like this in linux and minix kernel but dont seem to find what it does (even if C compilers support that kind of function definition) /* IRQs are disabled and uidhash_lock is held upon function entry. * IRQ state (as stored in flags) is restored and uidhash_lock released * upon function exit. */ static void free_user(struct user_struct *up, unsigned long flags) __releases(&uidhash_lock) { uid_hash_remove(up); spin_unlock_irqrestore(&uidhash_lock, flags); key_put(up->uid_keyring); key_put(up->session_keyring); kmem_cache_free(uid_cachep, up); } I cannot find out if this reference __releases(&uidhash_lock) before the parenthesis starts is allowed OR supported. (It sure is supported as it is in the linux kernel)

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  • How do i tell ubuntu to only install is asked for and do not bring other dependencies which will break the whole system?

    - by YumYumYum
    How can i only install python-webkit but not other packages? which is showing to install? (no gstreamer*.*, i do not want to have any single files installed in my distro because of GPL license and it slows my machine a lot) $ sudo apt-get install libwebkitgtk-1.0-0 python-webkit Reading package lists... Done Building dependency tree Reading state information... Done The following extra packages will be installed: libgstreamer-plugins-base0.10-0 libgstreamer0.10-0 Suggested packages: gstreamer-codec-install gnome-codec-install gstreamer0.10-tools gstreamer0.10-plugins-base The following NEW packages will be installed: libgstreamer-plugins-base0.10-0 libgstreamer0.10-0 libwebkitgtk-1.0-0 0 upgraded, 3 newly installed, 0 to remove and 333 not upgraded. Need to get 8,231 kB of archives. After this operation, 28.2 MB of additional disk space will be used. Do you want to continue [Y/n]? n Abort.

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  • System Center Service Manager 2010 SP1 Resource Links

    - by Mickey Gousset
    System Center Service Manager is a new product that Microsoft released last year to handle incident/problem/change management.  Currently the latest version is System Center Service Manager SP1, and there is a Cumulative Update for SP1 that you should grab as well. A strong ecosystem is starting to spring up around this product, with tools and connectors that fill needs not build into the product.  To find the latest list of these items, you need to do to the SCSM 2010 Downloads page.  Here you can find a list of the latest tools and add-ons from Microsoft, as well as third-party vendors.  The Microsoft Exchange connector, and the Powershell Cmdlets are definitely worth it to download and install.

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  • Google I/O 2010 - Building your own Google Wave provider

    Google I/O 2010 - Building your own Google Wave provider Google I/O 2010 - Open source Google Wave: Building your own wave provider Wave 101 Dan Peterson, Jochen Bekmann, JD Zamfirescu Pereira, David LaPalomento (Novell) Learn how to build your own wave service. Google is open sourcing the lion's share of the code that went into creating Google Wave to help bootstrap a network of federated providers. This talk will discuss the state of the reference implementation: the software architecture, how you can plug it into your own use cases -- and how you can contribute to the code and definition of the underlying specification. For all I/O 2010 sessions, please go to code.google.com From: GoogleDevelopers Views: 8 0 ratings Time: 59:03 More in Science & Technology

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  • How to Configure Microsoft Security Essentials

    Microsoft Security Essentials is the software giant's free solution for home users as well as small businesses. As long as you have a genuine copy of Windows running on your PC, you can enjoy all it has to offer. The program is characterized by easy installation and a user interface that is intuitive and rather simple to navigate. With so many viruses, spyware, and other malicious items floating all around the Web, keeping your PC secure should be of utmost importance. After all, you want to protect your investment and your sanity at the same time. Having a solid program such as Microsof...

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  • detecting when you are going to reach your hit limit for Google Analytics free account

    - by crmpicco
    I am a user of a free Google Analytics account and i'm slightly concerned that I may be approaching the 10,000,000 hit (Pageviews, Events etc) per month. Google state in their documentation: These limits apply to the Web Property / Property / Tracking ID. 10 million hits per month per property If you go over this limit, the Google Analytics team might contact you and ask you upgrade to Premium or implement client sampling to reduce the amount of data being sent to Google Analytics. However, I note that there is nothing to say that you can review or check up on your current usage for the month. I have administrator access to the Google Analytics account, but I see no feature that lets me check up on my monthly usage. I don't know if Google offer this, either by means of the admin interface or via their support channels - but it would certainly be a useful feature. Is there anyway for a free GA user to obtain this information?

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