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• How to detect user time-zone in sign up forms?

  - by Sizix

  Time zones can be hard to select from dozens of options. I would like to make this process simpler. I saw some forms in the wild that can do the best guess. I Goggled for a solution but with out any luck. Do any one have an idea how to do it?

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• How do I oly show some nodes (edges) on graphviz and not others

  - by Pietro Speroni

  I have a very complex graph, and there is no way that I can show it all and understand it. I need to make simplified versions of it showing only some nodes and not others. I don't just want the other nodes to be invisible, but to really be absent (so that the graph is simplified). The solution would be to make a graph with only some layers. But is that possible? What other options are there? Thanks, Pietro

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• Java - How to set focus the already running application ?

  - by Brad

  I am using a ServerSocket port to run one instance only of my Java Swing application, so if a user tries to open another instance of the program, i show him a warning that "Another instance is already open". This works fine, but instead of showing this message i want to set focus on the running application itself, like some programs does (MSN Messenger), even if it was minimized. Is there a solution for this for various operating systems ?

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• How to define an extern, C struct returning function in C++ using MSVC?

  - by DK

  The following source file will not compile with the MSVC compiler (v15.00.30729.01): /* stest.c */ #ifdef __cplusplus extern "C" { #endif struct Test; extern struct Test make_Test(int x); struct Test { int x; }; extern struct Test make_Test(int x) { struct Test r; r.x = x; return r; } #ifdef __cplusplus } #endif Compiling with cl /c /Tpstest.c produces the following error: stest.c(8) : error C2526: 'make_Test' : C linkage function cannot return C++ class 'Test' stest.c(6) : see declaration of 'Test' Compiling without /Tp (which tells cl to treat the file as C++) works fine. The file also compiles fine in DigitalMars C and GCC (from mingw) in both C and C++ modes. I also used -ansi -pedantic -Wall with GCC and it had no complaints. For reasons I will go into below, we need to compile this file as C++ for MSVC (not for the others), but with functions being compiled as C. In essence, we want a normal C compiler... except for about six lines. Is there a switch or attribute or something I can add that will allow this to work? The code in question (though not the above; that's just a reduced example) is being produced by a code generator. As part of this, we need to be able to generate floating point nans and infinities as constants (long story), meaning we have to compile with MSVC in C++ mode in order to actually do this. We only found one solution that works, and it only works in C++ mode. We're wrapping the code in extern "C" {...} because we want to control the mangling and calling convention so that we can interface with existing C code. ... also because I trust C++ compilers about as far as I could throw a smallish department store. I also tried wrapping just the reinterpret_cast line in extern "C++" {...}, but of course that doesn't work. Pity. There is a potential solution I found which requires reordering the declarations such that the full struct definition comes before the function foward decl., but this is very inconvenient due to the way the codegen is performed, so I'd really like to avoid having to go down that road if I can.

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• Ruby on Rails: Skipping 'validate_on_create' statement for seeds

  - by Jack

  I have a 'validate_on_create' statement in one of my controllers that I would like all of my seed data to skip. What are some solutions so that the create statement in my seeds file skips this validation. My current solution is commenting out the validation each time I run rake db:seed. Anything a little more clever?

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• Open WPD Device in Windows Explorer from .NET

  - by BerndDA

  Hello all. I am currently working on an application for managing a WPD device. I want to add an option to open the wpd device in windows explorer to view the saved files. Problem is that I can't find a way to open explorer pointing to the device's "folder". I have all information of the device (pnp device id, class name, etc.) Anybody knows a solution? Thanks in advance! Bernd

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• Style of input=File as a button

  - by Diego Correa

  Hello guys, I'm trying to put some style in the input=file aka uploader and I'm having a hard time with it, is there some NON FLASH solution (maybe jquery or even plain javascript)?

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• Where to find free-to-use, complex test databases?

  - by Jay

  I need a database for testing a data masking solution. Any database would do (Oracle/MSSQL flavor). I just need the schema / db definition. I have tools to generate data records. The magnitude of database I am looking should have 30 odd tables with 30 odd columns in each table - a HUGE database. Do freely available complex database /schema definitions exist on the internet? If yes, where do I find them?

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• software to manage applications within business.

  - by Richard Friend

  Hi I have been tasked to either find an off the shelf solution or to build inhouse some software that can maintain a list of all of the applications within our business, assign them to the different business areas that use them and list all the servers, documents, knowledge base etc that relate to the app in question. Does anyone know of any existing software that can do this ? Regards

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• Simpler range finder?

  - by dotty

  Hay guys I've programmed a very simple range finder. The user can only select numbers 1 - 180 (axis) if the number is 90 or below i have to add 90 on to it if the number is 91 - 180 i have to take off 90 from it. Here's what i have $min_range = range(1,90); $max_range = range(91,180); if(in_array($axis, $min_range)){ $c = $axis + 90; }elseif(in_array($axis, $max_range)){ $c = $axis - 90; } Has anyone got a better solution

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• undefined method 'add_acts_as_authentic_module'

  - by Alexey Poimtsev

  Hi, i've added code config.gem "authlogic-oauth", :lib => "authlogic_oauth" to the environment.rb file in my app and got error undefined method 'add_acts_as_authentic_module' for ActiveRecord::Base::Class is there any solution to solve it?

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• Personal cloud storage options

  - by rhaddan

  I'm looking for some personal cloud storage options. My biggest concern about moving to a hosted storage solution is the long-term viability of the provider. Has anyone used a cloud service that you're crazy about? I'm a Mac user, so I need to have something that will work on the Mac OS and ideally the iPhone as well.

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• what is the problem if we got ER_UNKNOWN_COM_ERROR

  - by adisembiring

  Hi .... I've got this mysql Error: 1047 SQLSTATE: 08S01 ER_UNKNOWN_COM_ERROR error from mysql. I've try to search in google. but I didn't find the solution. Maybe you can help me. Thanks,

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• How to add a custom item to the Microsoft Office Send To Menu

  - by tecmo

  Is it possible to extend the "Send to" menu in Office (not the Windows one; I know how to do that). I would like to launch my own application with the source document as the target. Update: I am looking for a non-VSTO based solution.

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• SQL Server differential backup to SQL statements

  - by noonex

  Is there any way to convert differential backup to SQL statements which will produce identical results when applied? Or any other solution similar to binary log in MySQL?

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• ARM assembly puzzle

  - by ivant

  First of all, I'm not sure if solution even exists. I spent more than a couple of hours trying to come up with one, so beware. The problem: r1 contains an arbitrary integer, flags are not set according to its value. Set r0 to 1 if r1 is 0x80000000, to 0 otherwise, using only two instructions. It's easy to do that in 3 instructions (there are many ways), however doing it in 2 seems very hard, and may very well be impossible.

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• Facebook Connect for BlackBerry

  - by Gadi

  Hi I'm looking for a solution similar to the iPhone Facebook Connect (http://wiki.developers.facebook.com/index.php/Facebook%5FConnect%5Ffor%5FiPhone) for the BlackBerry platform. Basically, I need my users to authenticate against Facebook from within a native BlackBerry application (so, not a Web based mobile application). Is there a library I could use, and if not, what will be the correct approach to achieve this? Thanks in advance!

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• Drag rows out of a multiselect DataGridView

  - by Andrew White

  I'm having a problem dragging rows out of a datagridview. The grid has the property multiselect = true and every time I select the rows I want to drag out and then left click on the grid again, the selected rows disappear. Anyone got a solution / a working example? Thx.

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• Floating point precision and physics calculations

  - by Vee

  The gravity Vector2 in my physics world is (0; 0.1). The number 0.1 is known to be problematic, since "it cannot be represented exactly, but is approximately 1.10011001100110011001101 × 2-4". Having this value for the gravity gives me problems with collisions and creates quite nasty bugs. Changing the value to 0.11 solves these problems. Is there a more elegant solution that doesn't require changing the value at all?

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• C# Parsing html for general use?

  - by Wardy

  What is the best way to take a string of html and turn it in to something useful? Essentially if i take a url and go get the html from that url in .net i get a response but this would come in the form of either a file or stream or string. What if i want an actual document or something I can crawl like an xmldocument object? I have some thoughts and an already implemented solution on this but I am interested to see what the community thinks about this.

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• How to convert an IPv4 address into a integer in C#?

  - by GateKiller

  I was going to attempt to write this function myself but I thought that someone on SO might know the answer :) I'm basically looking for a function that will convert a standard IPv4 address into an Integer. Bonus points available for a function that will do the opposite. Solution should be in C#.net.

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• Update WCF service reference

  - by SteveC

  In BizTalk 2006 R2, is there some way to regenerate the reference to a WCF service that has been created using the "Add Generated Items / Consume WCF Service" option? I tried just re-running the wizard, but it creates new ODX, BindingInfo, etc. files, and breaks the solution, so that's not the way :-( Searched the web, but not found any references to how to update the references, just plenty on creating from scratch

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• expand div with focus-jQuery-doesn't work in IE

  - by Joel

  Hi folks. I was kindly helped by fudgey earlier. Unfortunately the solution doesn't work in IE. Here is the original post: http://stackoverflow.com/questions/2768141/expand-div-with-focus-jquery and here is his demo (also doesn't work in IE): http://pastebin.me/6561cd9a033a5f16940ae12f813e938c Any idea on how to make this work there? Thanks!

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• Report generation in PHP (formats required pdf,xls,doc,csv)

  - by Ish Kumar

  I need to generate reports in my PHP website (in zend framework) Formats required: PDF (with tables & images) // presently using Zend_Pdf XLS (with tables & images) DOC (with tables & images) CSV (only tables) Please recommend robust and fast solution for generating reports in PHP. Platform: Zend Framework on LAMP I know there are some tricky solutions for creating such reports, i wonder is there any open source report generation utility that can be used with LAMP environment

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• Foreign key refering to primary keys across multiple tables?

  - by sanjay bharkatiya

  hi , i have three tables say city,state and road 1) city - city_id(PK),name 2) state- Stt_id(PK),name 3) Road- Edge_id(PK), Admin_id(FK) where Admin_id refers to city_id and Stt_id both. This is done because the tables are too huge. say city_id contains 1,2,3 and Stt_id contains 4,5,6 now if i am inserting 1,2,3,4,5,6 in admin_id it is throuing an error .. what is the solution of my problem, regards sanjay

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