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• Importing data from a JSON file into R

  - by user313967

  Is there a way to import data from a JSON file into R? More specifically, the file is an array of JSON objects with string fields, objects, and arrays. The RJSON Package isn't very clear on how to deal with this http://cran.r-project.org/web/packages/rjson/rjson.pdf.

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• How to use ajax with prototype and jsps

  - by kevinb92

  I'm developing social faq solution. When I click on vote up or vote down, i want to make an ajax call to a java function. I've worked with struts on another project, and i was making call to struts action. Now I work only with simple jsp, servlets ... and I dont know how to make an ajax call to a java function which will send me json or xml.

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• Why is "This program cannot be run in DOS mode" text present in .dll files?

  - by sharptooth

  Recently I opened a .dll file produced by Visual Studio 9 while compiling a native C++ DLL project and was surprised to see the "This program cannot be run in DOS mode" text near the beginning. Why have this text in .dll files?

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• Automatically inserting new fields in a web.config file

  - by MarceloRamires

  I have an ASP.NET project which has already some custom fields in it's web.config file. I've added in it three more fields and used them in my changes, and it's working great. But where it needs to be used, there aren't these thre fields in the web.config (this was expected, I've just added by hand for tests and developing). How do I check the existance of fields in web.config, and in case of not finding it, how do I add it permanently to the web.config ? Thank you

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• Profilers for ASP.Net Web Applications?

  - by Earlz

  I was recently wanting to do some profiling on an ASP.Net project and was surprised to see that Visual Studio (at least seems to be) lacking a profiler. So my question is what profiler do you use for ASP.Net? Are there any decent ones out there that are free? I've seen a few general .Net profilers but have yet to see one that can be used with ASP.Net..

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• Visual Studio Stop Debugging on IE Close - WebSite?

  - by Mark

  Hi all, Would like to know if there is a setting anywhere which causes debugging to automatically stop when IE closes, and also if there is a way for this to work the other way around and IE to close if debugging stops. I know that this works when the project type I'm working on is a 'Web Application', I'd like to know if the same functionality exists when working on a 'Web Site' Thanks all.

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• Django: Get bound IP address inside settings.py

  - by Silver Light

  Hello! I want to enable debug (DEBUG = True) For my Django project only if it runs on localhost. How can I get user IP address inside settings.py? I would like something like this to work: #Debugging only on localhost if user_ip = '127.0.0.1': DEBUG = True else: DEBUG = False How do I put user IP address in user_ip variable inside settings.py file?

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• HowTo: Conditional Page Break in SSRS 2010 ?

  - by SwissCoder

  Hi there I just migrated a project from .NET 3.5 to 4.0, accordingly the reports now use SSRS included in .net 4.0/VS2010. Before conditionally setting a rectangles visibility did the trick for me. (inside the rectangle I put a rectangle with a pagebreak) But this stopped working now.. any help appreciated

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• Why does Visual Studio use different indentation settings for C# and for C++?

  - by Michal Czardybon

  For C# Visual Studio uses 4 spaces by default, whereas for C++ it is hard-tabs. Why is it so? Why is it different? My project consists of both C# and C++ code and the difference really annoys me. I want to set a common standard for all the sources, but I wonder if this would have any drawbacks.

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• Access entire urls for a particular keyword

  - by Nikhil K

  My project need to compare output(only urls) of google and yahoo for a particular keyword. Can i access entire urls for a particular keyword from google and yahoo? Do they provide any library or any other thing for that?how can i do that?..

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• How to use SVN to diff an entire repository (preferably with Tortoise SVN)

  - by orokusaki

  I'm wondering if there is a way to create a diff of a repository that you've checked out and save it to a diff file so that you can contribute it to a project as a full patch. I'm using Tortoise SVN, but if it has to be at the command line, that's OK too.

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• Data Access Layer in Asp.Net

  - by Dark Rider

  Am Afraid If am Overdoing things here. We recently started a .Net project containig different Class Libraries for DAl,Services and DTO. Question is about our DAL layer we wanted a clean and easily maintained Data access layer, We wanted go with Entity Framework 4.1. So still not clear about what to opt for Plain ADO.Net using DAO and DAOImpl methodolgy or Entity Framework. Could any one please suggest the best approach.

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• Right tool for tracking DB structure changes

  - by termopro

  Right now i have a PHP project and i track all changes in code by SVN. I would also like to track changes made in database structure. Which is the right tool to use ?

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• Scala unsatisfiable cyclic dependency in "table-layout" library (Toolkit class)

  - by Atol

  When I try to compile with sbt some code containing an instance of a Table from this library I get this error: java.lang.AssertionError: assertion failed: unsatisfiable cyclic dependency in 'class Toolkit' It seems to work with Java so I don't understand why it fails in Scala. Here is the toolkit class: http://code.google.com/p/table-layout/source/browse/branches/v1/tablelayout/src/com/esotericsoftware/tablelayout/Toolkit.java As long as I get this error I'm totally stopped in my project :(.

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• Makefile - How to save the .o one directory up?

  - by nunos

  Imagine the following folder structure: project src code.c makefile bin How can I compile code.c to code.o and directly put it inside bin? I know I could compile it to code.o under src and the do "mv code.o ../bin" but that would yield an error if there were compile errors, right? Even if it works that way, is there a better way to do it? Thanks.

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• What is the most painful development related mistake you have done and what you have learned?

  - by burak ozdogan

  What is the most painful programming mistake you have done and what lesson you have learn after? I guess mine was making a release to production on the development code which was not tested yet. The lesson-learned: Delete any projects that can trigger a release on the live application from CCTray. I only add them when a release to production is necessary since then. And once I am done, I delete them from my project lists.

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• want a dev branch to run on phone along with live version (android)

  - by Scott

  I have a live marketplace version of my application, and now want to start developing my next version, but want to be able to have the newer dev 'upgrade' (for testing) and existing live version (for demoing) both on the same device, but I dont want to create a whole separate project to do this. Any ideas?

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• How to read and parse (local) XML-file in Prototype JS?

  - by ChrisBenyamin

  I have to create a module in a specific project, which already uses PrototypeJS. What I have: - An XML File with information What I want: - A simple div, which displays the (with XPath filterd) Content of the XML-File. I am complete new to PrototypeJS and dont know where to begin, so I appreciate your help. Blessing chris

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• Good resources for learning WPF

  - by user185040

  I am very new to WPF and I am interested in learning it. I have gone through some tutorials, but I am looking for a website or book containing projects/assignments along with solutions so that you can code and learn. As I work through a project, I'd like to be able to refer to a solution in case I get stuck somewhere. Can someone please share any links/material if you have which can give me some WPF Projects/assignments to work on along with solution. Thanks.

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• Can I browse Mono source code in Visual Studio?

  - by Borek

  I'd like to see how some classes are implemented in Mono and would like to use code navigation features found in Visual Studio. Has anyone tried importing Mono source codes as a VS project / solution?

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• How to make .EXE for demonstration of a Android Software built in eclipse?

  - by rob

  I am almost done with my project in android, now I want to make the executable version of the application. I need to demonstrate it in .exe form as soft app as on emulator, not by built and debug process from eclipse. need immediate idea

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• What can cause EXC_BAD_INSTRUCTION in dyldbootstrap?

  - by Georg Fritzsche

  Porting a bigger project to iPhone i have it running in the simulator, but trying to run it on a iPad device results in a EXC_BAD_INSTRUCTIONin dyld code with the following backtrace: #0 0x2fe01088 in __dyld__ZN13dyldbootstrapL30randomizeExecutableLoadAddressEPK12macho_headerPPKcPm () #1 0x2fe06a72 in __dyld__ZN4dyld5_mainEPK12macho_headermiPPKcS5_S5_ () #2 0x2fe06d3c in __dyld__ZN9__gnu_cxx13new_allocatorIPFPKc17dyld_image_statesjPK15dyld_image_infoEE8allocateEmPKv () #3 0x2fe0b398 in __dyld__ZN9__gnu_cxx13new_allocatorISt13_Rb_tree_nodeIPK11ImageLoaderEE8allocateEmPKv () #4 0x2fe05fa6 in __dyld__ZN4dyld11removeImageEP11ImageLoader () #5 0x2fe06506 in __dyld__ZN4dyld5_mainEPK12macho_headermiPPKcS5_S5_ () #6 0x2fe0128c in __dyld__ZN13dyldbootstrapL30randomizeExecutableLoadAddressEPK12macho_headerPPKcPm () #7 0x2fe01060 in __dyld_branch_to_lookupDyldFunction () This is building for iPhone Device 3.2 with the architectures armv6 armv7 and happens before main() is ever entered. I am currently at a loss for how to find the cause of this, any ideas?

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• How to write a virtual machine

  - by swellfr

  I would like to learn how to write a small emulator/virtual machine. Does anyone know a good tutorial or a simpler project than qemu/virtualbox? Thx

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• Best aproach for working with Time in C# WinForms?

  - by MadBoy

  I'm trying to make a field where user will enter amount of time per day he/she spent on a project per day. It can be from 30 minutes to 8 hours. Is DateTimePicker with CustomFormat hh:mm best choice for this? Or there's better alternative for WinForms C#? Maybe TextBox or MaskedTextBox with special settings?

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• Detect pointer arithmetics because of LARGEADDRESSAWARE

  - by Suma

  I would like to switch my application to LARGEADDRESSAWARE. One of issues to watch for is pointer arithmetic, as pointer difference can no longer be represented as signed 32b. Is there some way how to find automatically all instances of pointer subtraction in a large C++ project? If not, is there some "least effort" manual or semi-automatic method how to achieve this?

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