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  • Better alternative to autonumber primary keys

    - by Comrad_Durandal
    I am looking for a better primary key than the autonumber data type, namely for the reason that it's limited to a long integer, when I really just need the field to reflect a number or text string that will never ever repeat, no matter HOW many records are added or deleted from the table. The problem is I am not sure how to implement something like turning the current date and time into a hexadecimal string and using that as a unique field I can use as a primary key. Am I just being too paranoid about running out of space?

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  • regular expression for challenge value

    - by Salman
    Hi what will be the regular expression to extract challenge var value i am interested in this vlaue 03AHJ_Vut9LJLOJuCsjF9PbSSMncTyUe7Y4dHX11eRLae3LGfDZ0hSfDR7jZq2ZrKJxyC-LRSSppv72oHKaQMsd-EnoVNL6p7liTh7siN26zzTA_E2rcC_JQ15613Azz4qm8HjPtAyksUdc7QZydszwolk92hBPrAAig this value changes every time we refresh it so the expression has to be generic enough to pick up what ever is the value var RecaptchaState = { site : '6LeKCL8SAAAAADV5Dr-lfY2eOEV8rubeN25BAKp2', challenge : '03AHJ_Vut9LJLOJuCsjF9PbSSMncTyUe7Y4dHX11eRLae3LGfDZ0hSfDR7jZq2ZrKJxyC-LRSSppv72oHKaQMsd-EnoVNL6p7liTh7siN26zzTA_E2rcC_JQ15613Azz4qm8HjPtAyksUdc7QZydszwolk92hBPrAAig', is_incorrect : false, programming_error : '', error_message : '', server : 'http://www.google.com/recaptcha/api/', timeout : 18000}; any help will be appreciated, or any method to extract this value in any server side lang

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  • Using NULL in MySQL

    - by JPro
    The data in my dabatase comes from an external source and where ever there is no data passed, I keep NULL in those places. Can anyone tell me if there are any implications in using NULL to represent empty value? Should I follow some other convention like 'data_not_available'? or something like that? Can anyone suggest?

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  • What is a "could not find type System.Collections.Generic.List" in the .NET Designer?

    - by WindyCityEagle
    I've got a WinForms project that I've had for quite some time, and now suddenly, I can't open the designer anymore and when I try to open the designer I get an error that says could not find type 'System.Collections.Generic.List' All of the code builds just fine, but I can't use the designer anymore, and I don't know what happened, nor do I have any idea where to look to solve the problem. Has anyone ever run into this or have any insight?

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  • Is it possible to mix a named pipe with select in perl?

    - by Haiyuan Zhang
    I need to write a daemon that supposed to have one TCP socket and one named pipe. Usually if I need to implement a multi IO server with "pure" sockets, the select based multi-IO model is always the one I will choose. so does anyone of you have ever used named pipe in select or you can just tell me it is impossible. thanks in advance.

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  • Log4j Properties in a Custom Place

    - by Azder
    I'm using Apache Commons Logging and SLF4J with log4j, but I also want to use the log4j.properties in a custom place like conf/log4.properties. Here is the problem: If i use PropertyConfigurator.configure("conf/log4j.properties"); then my app is tied to log4j and defets the purpose of having ACL and SLF4J. What is the best way to configure it withouth the app ever knowing what the logging implementation is?

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  • Creating Synch Point In TFS Source Tree Development Cycle

    - by Rob G
    Our development cycle rarely requires a branch so we have what tfs appears to consider a single, never-ending development cycle. Our problem is that each build includes an ever increasing long "Generating list of changesets and updating work items" step that includes all changesets/work items back to day 1. What is the proper step that we need to perform to formally lock and label (wrong terms I'm sure) the source tree so that a new cycle of changesets and work items can begin. Thanks!

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  • ((System.Object)p == null)

    - by Daniel Bryars
    Why do this: // If parameter cannot be cast to Point return false. TwoDPoint p = obj as TwoDPoint; if ((System.Object)p == null) { return false; } Instead of this: // If parameter cannot be cast to Point return false. TwoDPoint p = obj as TwoDPoint; if (p == null) { return false; } I don't understand why you'd ever write ((System.Object)p)? Regards, Dan

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  • Ms Access. How to resize a web browser in Access Form?

    - by tksy
    Hi, I have a web browser in my access form. I am embedding a gif file on it. but how ever i re size it there is a white border coming in the top and left side. The adjustments take place only at the bottom and right side. So when i embed a gif file with black background i end up getting a white background on the top and left sides, how do i make this go. thanks tksy

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  • adding code to jsfiddle

    - by loriensleafs
    I want to add a very simple bit of code to a jsfiddle, but when ever I do it breaks everything else. This is the code I'd like to add: $("#launcher").click(function(){ $("#profile_850_HEADER").animate({ margin-top: "10px" }, 1500 ); }); and this is the jsfiddle http://jsfiddle.net/loriensleafs/F3wjg/3/ , I'm sure this is beyond simple but I can't figure it out, any help would be greatly appreciated.

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  • Best open source C# library?

    - by Alon
    There are great .NET libraries and components. What is, for your opinion the most useful, effective, well wrriten open source C# library you've ever seen? Mines, is the great Html Agility Pack. Please post one library per answer.

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  • How can I move an object left and right with silverlight?

    - by Craig
    I currently have two buttons that say left and right, and I want them to move a square object left and right respectively. What its currently doing when i press left is moving the square to the left, and if I press left again, it resets from the center and goes left. I want it so that when I press left, from where ever it is currently to go left and right. I know the principle is something like get current objects position and add the canvas coordinates respectively but how do I do this?

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  • PHP 5 functioning returning an array- interaction without assignment?

    - by Lee
    I'm wondering if this kind of thing will ever be possible in PHP (and whether it already is and I'm just missing something...) <?php function test() { return array( 'id'=>10, 'name'=>'John' ); } echo 'Your name is: '.test()['name']; ?> I'd really like to be able to use returned arrays directly instead of first assigning them to a var... possible?

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  • getting location of installed application vb.net

    - by every_answer_gets_a_point
    i published an application in vb.net. the user will be able to install the application anywhere they choose on the computer (or perhaps not anywhere they choose but where ever the default location is). how can i programmatically get the location where the user installed the application? another words i need the application to know where it is running from. how do i detect that?

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  • Return statements for all functions

    - by emddudley
    How common is it for coding style guidelines to include a requirement that all functions include a return statement (including functions which return void)? To avoid being subjective or argumentative, I'd like answers which can name specific companies or open-source projects which have this requirement. If you haven't ever come across this coding style guideline, or you have a resource (book, online article) which discusses it, that would be useful as well. Thanks!

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  • Android - Declarative vs Programmatic UI

    - by Steve
    Has anyone seen or compiled benchmarks comparing declarative (XML) versus programmatically created UI's in Android? There are things that Google has done to speed up the declarative approach, but you still do have the layout inflation step done at runtime. Have you ever switched (or considered) changing your UI from declarative to programmatic for any reason?

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  • good c++ documentation design example?

    - by Eye of Hell
    Hello. I'm tuning documentation generator for internal purpose that generates HTML documentation for C++ classes and methods. Is it any example available of good HTML documentation design? MSDN ( like this ) looks kinda outdated, same is doxygen / javadoc / sphinx results. Anyone ever see an documentation that looks REALLY good?

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  • Client-side Twitter API method using XMLHttpRequest?

    - by user359239
    Does (or did) Twitter ever have a method in their API that allowed client-side HTTP requests without producing any cross-domain issues? I have a site that used the following url: http://search.twitter.com/search.json?q=from%3adaleyjem&rpp=3&page=1&callback=? It once worked, but now it doesn't. Is there something else I should be using, or do I have to make a request to my own server-side code?

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  • Qt, Color Picker Dialog?

    - by high6
    Is there a color picker dialog for Qt like the following? Also it needs to have a OnColorChanged signal which is called when ever the selected color changes. I want to give a live preview when they are changing the colors, that is why. Using google I could only find this one that was a triangle in side of a circle and personally I think it looks ugly.

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  • How to version control data stored in mysql

    - by Shawn
    I'm trying to use a simple mysql database but tweak it so that every field is backed up up to an indefinite number of versions. The best way I can illustrate this is by replacing each and every field of every table with a stack of all the values this field has ever had (each of these values should be timestamped). I guess it's kind of like having customized version control for all my data.. Any ideas on how to do this?

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