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  • Basic question about encryption - what exactly are keys?

    - by Tomas
    Hi, I was browsing and found good articles about encryption. However, none of them described why the key lenght is important and what exactly the key is used for. My guess is that could work this way: 0101001101010101010 Key: 01010010101010010101 //the longer the key, the longer unique sequence XOR or smth: //result Is this at least a bit how it works or I am missing something? Thanks

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  • Handling a button click in MVC, why is there a string parameter?

    - by SLC
    I'm following this awful textbook, going through the basics of create/edit/delete records. The delete bit has a confirm button, and it is handled like so: [AcceptVerbs(HttpVerbs.Post)] public ActionResult Delete(int id, string confirmButton) { It offers no explanation of why the button is passed as a string or how MVC interprets it. Can anyone help clarify what's going on here? The Create code has no such string being passed.

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  • What does the exception "javax.servlet.jsp.JspException: Broken pipe" signify?

    - by Ruepen
    I'm getting the following error: javax.servlet.jsp.JspException: Broken pipe Now I have seen questions/answers with respects to the socket exception, but this error is coming from a different package. Any help is greatly appreciated. BTW, I am seeing quite a lot of these errors in a struts web app Weblogic Node logs and I am thinking that it has to do with end users closing their web browser before the page reloads/executes the next step (database transaction which takes quite a bit of time to execute, anywhere from 30 seconds to 4 mins).

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  • In a Visual Studio C++ project with /clr, are its dependencies also compiled to managed code?

    - by Michael
    To be a bit more clear. If I have a Visual Studio C++ solution that has two projects, say a static library with CLR support turned off, and a second project with CLR support turned on that depends on this static library, does the static library get compiled as managed code? What about libraries that the CLR project uses that are external to this solution, do they also get compiled as managed code?

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  • In C# VS2008 how to replace new SqlParameter("@values", SqlDbType.SomeType, 1500)) to ("@values", Sq

    - by CodeYun
    In C# VS2008 how to replace new SqlParameter("@Description", SqlDbType.NChar, 1500) or new SqlParameter("@IsRequired", SqlDbType.Bit) to "@Description", SqlDbType.NChar, 1500 or "@IsRequired", SqlDbType.B the idea is to remove new SqlParameter() and leave the parameters inside it. I have thounds of lines code have this pattern. I just want to pass compile by using some regular expression.

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  • browser instant updates with ajax/jquery

    - by wcpro
    I'm trying to reverse engineer how facebook handles their notifications, where when you get a message you get instantly notified via the browser. I've fiddled with it for a little bit and realized that there is always a pending GET request "listening" if you will to some sort of update from the server. This appears to be some sort of observer pattern. I was just wondering if this pattern was documented somewhere.

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  • unobtrusive "default" text in input WITHOUT jQuery

    - by Adam Kiss
    Hello, i'm trying to write unobtrusive default/placeholder text in input (actually, relatively placed label over input, which hides on onFocus, and stays hidden if input isn't empty on onBlur), but I don't want to use jQuery, because this is the only javascript used on page - therefore using jQuery seems a bit over the top. Please, how can I do this without jQuery? Thank you.

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  • Strategy for wiring up events?

    - by Jeffrey Cameron
    I'm using Ninject (1.5 ... soon to be 2) and I'm curious how other people use Ninject or other IoC containers to help wire up events to objects? It seems to me in my code that I'm doing it herky-jerky all over the place and would love some advice on how to clean it up a bit. What are people doing out there to manage this?

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  • Looking for a simple alternative to Thread.Sleep

    - by George
    HI, During the development of my app, I was using Thread.Sleep to give our external devices some time to adjust to settings before making queries, as they are quite old and slow. I now want to replace these with something a bit more stylish and correct. Does anyone have a simple way to "wait" for a device rather than sleep, bearing in mind the device does not let us know when it is ready, so a wait is about as good as we can do !?? Regards, George.

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  • why no += operator for vectors in stl

    - by Akshay Bhat
    I am curious? What high fundu logic goes behind not implementing: result+=vector1; where both result and vector1 are stl vectors. Note: i know how to implement that bit, but i need to know what logic, the sages who designed STL were using when they chose not to implement this feature?

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  • How to compile a Windows binary in Ubuntu?

    - by George Edison
    I have a Qt application that I can compile in Ubuntu 10.04 64-bit and on Windows. However, I would like to avoid switching to Windows every time I want to compile the Windows version. Is there a way I can compile a Windows Qt executable in Ubuntu with mingw32 or something? Further, is there a way to integrate that compiler into Qt Creator?

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  • Java slick command line app?

    - by Felix
    Hello Guys, I want to make a slick java commandline app which doesnt include all the nasty "java -jar some.jar arguments" instead, I would have it work just like program -option argument like any other commandline app. I use ubuntu linux, and it would be fine if it included a bit of .sh script or anything. I know I can just create a file with java -jar program.jar and do chmod +x file, afterwards I could run i with ./file, but then how can I pass the arguments to the program ?

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  • How to convert from string to a number, and vice-versa in C++?

    - by Igal
    DEAR All I'm new to the C++, so maybe someone can say what the proper way to write a function that gets a string char (represents number) and converts it to the integer number. For example : input : Sixty five, output: 65. Maybe it should use by cin.getline() ? Well, vice-versa is little bit simlper... Thanks for advance. Igal

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  • Determining the best audio quality.

    - by The Rook
    How can you determine the best audio quality in a list of audio files, with out looking at the audio file's header. What if all of the files came from differnt encoding types and they where all transcoded to the same format and bit rate.

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  • Need to get my divs side by side

    - by trehop
    I am just trying to get the image box to slide up next to the BBD logo and I can't seem to figure it out. A bit new to css and floats, etc. Can anyone offer a suggestion??? I'm working off of a template, so didn't set up the css myself. Thanks! link text

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  • jquery tabs question

    - by badnaam
    The problem is every time a tab is activated, the cursor jumps to the top of the page, since the tab link points to a div and the page scrolls up to the top of the div. This creates a jumpy effect if the user has scrolled down a bit, while reading tab content. Is there anyway to prevent this?

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  • Windows GUIs for git (Updated)

    - by Benjol
    I am aware of this question, but it is a bit old now, and some of the answers seem outdated. Question: please write one answer per GUI you have used, including pros and cons (for example, as far as I can tell, with git gui, you can't manage the stash).

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  • How to Calculate longest streak in SQL?

    - by VJ
    I have EMPLOYEE-ID,DATE,IsPresent I want to calculate longest streak for a employee presence.The Present bit will be false for days he didnt come..So I want to calculate the longest number of days he came to office for consecutive dates..I have the Date column field is unique...So I tried this way - Select Id,Count(*) from Employee where IsPresent=1 But the above doesnt work...Can anyone guide me towards how I can calculate streak for this?....I am sure people have come across this...I tried searching online but...didnt understand it well...please help me out..

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