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• How hard is it for a .NET programmer to learn Objective C and Cocoa?

  - by rsteckly

  Hi, I'm trying to build a dual platform application for a company of my own I'm trying to start at night. I have the .NET version done, but have not finished the UI part. I'm thinking of buying some 3rd party controls. If I buy these controls, however, they clearly will only work in my Windows version. I'm wondering if I should try to do the UI in GTK# and use Mono with CocoaSharp or just build the thing in MS technology and teach myself the Mac side? I'm just really unfamiliar with the Mac world and am wondering how much of a learning curve there might be. I've thought perhaps of rewriting my core logic in Ruby or Python. This why I could use the .NET version with .NET controls and presumably hook the same code up on the Mac. It's an educational app targeted at consumers. As such, it shouldn't require a lot of technical sophistication to install.

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• Is it possible to dynamically set a static string during *class* Initialisation?

  - by LonnieBest

  I'm trying to dynamically create a connection string during compile time: public static string ConnectionString { get { string connectionString = @"Data Source=" + myLibrary.common.GetExeDir() + @"\Database\db.sdf;"; return connectionString; } } I keep running into type initialisation errors. I was trying to avoid having to set the connection string for all applications that user my code library. The location of the database is different for each project that uses the library. I have code that can determine the correction string, but was wanting run it during compile time. Is this even possible?

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• SBT equivalent of Ant target

  - by adelbertc

  What is the SBT equivalent (if any) of Ant targets? For example, a snippet in a build.xml file for Ant would be: <target name="runClient" description="run client"> <java classname="client.Client" fork="true"> <jvmarg value="-Djava.rmi.server.codebase=${client_web_codebase}"/> <jvmarg value="-Djava.security.policy=policy"/> <arg value="localhost"/> <classpath> <pathelement location="dist/client.jar"/> </classpath> </java> </target> And then I would do something like ant runClient to launch the application "client.Client" with the jvmargs specified in the XML.. is there an SBT equivalent, or a way for SBT to hook into Ant to do this?

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• Django: switch language of message sent from admin panel

  - by yoshi

  I have a model, Order, that has an action in the admin panel that lets an admin send information about the order to certain persons listed that order. Each person has language set and that is the language the message is supposed to be sent in. A short version of what I'm using: from django.utils.translation import ugettext as _ from django.core.mail import EmailMessage lang = method_that_gets_customer_language() body = _("Dear mister X, here is the information you requested\n") body += some_order_information subject = _("Order information") email = EmailMessage(subject, body, '[email protected]', ['[email protected]']) email.send() The customer information about the language he uses is available in lang. The default language is en-us, the translations are in french (fr) and german (de). Is there a way to use the translation for the language specified in lang for body and subject then switch back to en-us? For example: lang is 'de'. The subject and body should get the strings specified in the 'de' translation files.

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• Arrays in javascript, how can i learn manipulating it?

  - by Noor

  I've read alot about the core implementation of arrays in javascript and often i find that experimenting is the best way to learn, Right now i have multiple forms where you can type in different things, i want to be able to pull the value of each one and put it in an array so that i can later on read them in in a dynamically created div.. Can anyone point me in the right direction? There is a way i could get around this and that would be by using just one form, and pulling the text from there seperated by comas (,).. the thing is that i don't have the knowledge to pull the text form the form, search and find the comas, then make a new variable i think is neccessary, and read that in.. i know how to "think" javascript, not how to write it.. how do i learn the easiest/fastest way?

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• Operator() as a subscript (C++)

  - by Ivan Gromov

  I use operator() as a subscript operator this way: double CVector::operator() (int i) const { if (i >= 0 && i < this->size) return this->data[i]; else return 0; } double& CVector::operator() (int i) { return (this->data[i]); } It works when I get values, but I get an error when I try to write assign a value using a(i) = 1; UPD: Error text: Unhandled exception at 0x651cf54a (msvcr100d.dll) in CG.exe: 0xC0000005: Access violation reading location 0xccccccc0.

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• Examining C/C++ Heap memory statistics in gdb

  - by fd

  I'm trying to investigate the state of the C/C++ heap from within gdb on Linux amd64, is there a nice way to do this? One approach I've tried is to "call mallinfo()" but unfortunately I can't then extract the values I want since gdb deal with the return value properly. I'm not easily able to write a function to be compiled into the binary for the process I am attached to, so I can simply implement my own function to extract the values by calling mallinfo() in my own code this way. Is there perhaps a clever trick that will allow me to do this on-the-fly? Another option could be to locate the heap and traverse the malloc headers / free list; I'd appreciate any pointers to where I could start in finding the location and layout of these. I've been trying to Google and read around the problem for about 2 hours and I've learnt some fascinating stuff but still not found what I need.

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• how to set Custom attribute of NSManagedObject which is calculated from other attributes ?

  - by Kundan

  I am using core data framework to manage objects.i have an entity which has several attributes of decimal types. Among them is attribute which is mathematically calculated from other attributes. Ex :- @interface Marks : NSManagedObject { } @property (nonatomic, retain) NSDecimalNumber * answerGradeA; @property (nonatomic, retain) NSDecimalNumber * answerGradeB; @property (nonatomic, retain) NSDecimalNumber * answerGradeC; @property (nonatomic, retain) NSDecimalNumber * total; Here i want attribute total = 3xanswerGradeA + 2xanswerGradeB + 1xanswerGradeC if it is possible to do like this, then how ? please reply. Thanks in advance.

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• Proper design a Model-Controller in Cocoa?

  - by legege

  Hi, I'm trying to design a simple Cocoa application and I would like to have a clear and easy to understand software architecture. Of course, I'm using a basic MVC design and my question concerns the Model layer. For my application, the Model represents data fetched on the Internet with a XML-RPC API. I'm planning to use Core Data to represent a locally fetched version. How should the data be loaded initially? I'm reading the Cocoa Design Pattern book, and they talk about a Model-Controller that is centric to the Model. How would that be done? Thanks!

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• Method of documentation for SQL Stored Procedures

  - by Chapso

  I work in a location where a single person is responsible for creating and maintaining all stored procedures for SQL servers, and is the conduit between software developers and the database. There are a lot of stored procedures in place, and with a database diagram it is simple enough 90% of the time to figure out what the stored procedure needs for arguments/returns as output. For the other 10% of the time, however, it would be helpful to have a reference. Since the DBA is a busy guy (aren't we all), it would be good to have some program which documents the stored procedures to a file so that the developers can see it without being able to access the SPs themselves. The question is, does anyone know of a good program to accomplish this? Basically what we need is something that gives the name of the SP, the argument list and the output, both with datatypes and a nullable flag.

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• Switch statement for string matching in JavaScript

  - by yaya3

  How do I write a swtich for the following conditional? If the url contains "foo", then settings.base_url is "bar". The following is achieving the effect required but I've a feeling this would be more manageable in a switch: var doc_location = document.location.href; var url_strip = new RegExp("http:\/\/.*\/"); var base_url = url_strip.exec(doc_location) var base_url_string = base_url[0]; //BASE URL CASES // LOCAL if (base_url_string.indexOf('xxx.local') > -1) { settings = { "base_url" : "http://xxx.local/" }; } // DEV if (base_url_string.indexOf('xxx.dev.yyy.com') > -1) { settings = { "base_url" : "http://xxx.dev.yyy.com/xxx/" }; } Thanks

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• Listening to another window resize events in C#

  - by Steve

  Hi all I am implementing a small application (observer) that needs to "attach" itself to the bottom of another window (observed). The latter is not a window inside the application. At this moment I solved by getting the hWnd of the window and querying periodically in a thread the location of the observed window, moving the observer window accordingly. However this is a very inelegant solution. What I would like to do is to listen to the resize event of the observed window so that the observer will react only when necessary. I assume I should use a hook, and I found plenty of ways of doing it, but my lack of knowledge of the C WinAPI is blocking me in understanding which hook I need to create and how (pinvoke/parameters/etc). I'm pretty sure this is quite trivial, and some of you familiar with C/C++ and WinAPI will have the answer ready at hand ;) Thanks

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• C#: Creating an editable object inside a PictureBox

  - by ET

  My goal is to let the user click on a specific location on a map to add a Placemark, and then edit the placemark by click its icon (change its name, move it around, etc). I am using a PictureBox to show the map, and by registering the MouseDoubleClick event I am drawing an Image on the map with GDI+ DrawImage() method. The problem is that after the placemark's Image was drawn, it does not editable: the user cant click the icon and move it around, change its name etc. Is there any other design pattern I can follow? maybe using other controls... ?

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• Can I create a new project based on an abandoned one licenced under GNU GPL v2?

  - by Jared Pearson

  I've found a SourceForge project with a solid core that I would like to improve. The project hasn't been updated since 2007 so I assume it is "dead". I sent an e-mail asking to become a contributor to the listed project manager last week but still haven't received a response. The project is licensed under the GNU GPL v2. I would like to contribute to the current project but that doesn't appear to be possible. Can I modify the current source version of the project and release this modified project? I would keep the same license on the modified project.

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• [SCORM 2004] the cmi.total_time parameter does not return anything.

  - by Nephila

  I am programming a SCORM 2004 product. I can update the session_time, it works. I can set the status (passed, failed, etc...) I also can get the cmi.location time. No problems! But I don't succeed atingt get the total time (cmi.total_time). I have tested on 2 LMS: On Ganesha the API.GetValue('cmi.total_time') is an empty string. On Moodle the API.GetValue('cmi.total_time') is just a "P". I do have the correct logs with correct session times. EDIT. I also try on cloud.scorm.com and cmi.total_time returns each time PT0H0M0S.

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• Installed Android on Mac, cannot find SDK

  - by David Matuszek

  Using Mac OS X 10.6.2, Eclipse SDK 3.5.2. I installed the Android plugin, following the instructions at: http://developer.android.com/sdk/eclipse-adt.html In the next section (step #3) it says: For the SDK Location in the main panel, click Browse... and locate your downloaded SDK directory. I cannot find such a directory. When I try some other directory, it says the directory has no 'tools' folder, so I've searched for a 'tools' folder, but none of those found (of 15 or 20) appear to be Android. Where is this directory??? --Dave [email protected]

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• Error after passing variable from jquery to code in c#

  - by Moraru Viorel

  I try to pass variable from jquery to code c# but something is wrong. I have in js this code: <script type="text/javascript"> var mySerial = '12345'; var fooUrl = '@Url.Action("Foo", "Home")'; window.location.href = fooUrl + '?mySerial' + encodeURIComponent(mySerial); </script> in controller : [HttpPost] public ActionResult Foo(string mySerial) { return View(); } After execution I keep this url: http://localhost:2214/@Url.Action("Foo",%20"Home")?mySerial12345 and I don't understand where's the problem, can someone help me?

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• Latest 100 mentions - Twitter api

  - by laurens

  I'm looking to achieve the following: For a specific person, for example BarackObama, I'd like to get the last 100 times/tweets he was mentioned. Not his own tweets but the tweets of others containing @BarackObama. In the end I'd like to have: the person who mentioned, location, datetime. This content should be written to a flat file. I've been experimenting with the Twitter API and Python, with success but haven't yet succeeded achieving the above problem. I know there is a dev sections on the twitter website but they don't provide any example of code!! https://dev.twitter.com/docs/api/1/get/statuses/mentions count=100 .... For me the scripting language or way of doing is not relevant it's the result. I just read on the internet that python and Twitter api are a good match. Thanks a lot in advance!!

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• android java.lang.OutOfMemoryError

  - by xiangdream

  hi, all, when i download large data from website, i got this error information: I/global (20094): Default buffer size used in BufferedInputStream constructor. It would be better to be explicit if an 8k buffer is required. D/dalvikvm(20094): GC freed 6153 objects / 3650840 bytes in 335ms I/dalvikvm-heap(20094): Forcing collection of SoftReferences for 3599051-byte al location D/dalvikvm(20094): GC freed 320 objects / 11400 bytes in 144ms E/dalvikvm-heap(20094): Out of memory on a 3599051-byte allocation. I/dalvikvm(20094): "Thread-9" prio=5 tid=17 RUNNABLE I/dalvikvm(20094): | group="main" sCount=0 dsCount=0 s=0 obj=0x439b9480 I/dalvikvm(20094): | sysTid=25762 nice=0 sched=0/0 handle=4065496 anyone can help me?

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• How can I redirect all traffic from one domain to another with an .htaccess file?

  - by George Edison

  Say I have a subdomain xxx.yyy.com running Apache. The files are stored in /home/someone/public_html/xxx. What I want to do is redirect all requests to a domain name zzz.com which is using the same location for its files. (In other words, xxx.yyy.com and zzz.com are aliases for each other) I just want people accessing zzz.com, so if someone goes to xxx.yyy.com they should be redirected to zzz.com. Can this easily be done with a rewrite rule in an .htaccess file?

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• STL member variable initalization issue with windows API

  - by Django

  I am creating a windows app that uses a vector of stings as a member variable. For some reason, I can compile but when it tries to get at any of the vectors members is crashes. the error is 0xC0000005: Access violation reading location 0xcdcdcdd9. in the member function of the vector class. this is the size() function where it breaks. size_type capacity() const { // return current length of allocated storage return (this->_Myend - this->_Myfirst); } I am using visual studios 2010. thank you Django

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• Is it possible to perform a forward into a new window?

  - by smayers81

  We are using ICEFaces 1.8 and I would like to perform a forward to a new URL, but want it to open in a new window. We are currently able to perform a redirect to a new window as: public static void redirectToUrl(String urlPath) { if (urlPath != null) { try { final String url = FacesUtil.getContextPath() + urlPath; final StringBuffer jsCommand = new StringBuffer(); jsCommand.append("window.document.location.href='").append(url).append("';"); JavascriptContext.addJavascriptCall(FacesContext.getCurrentInstance(), jsCommand.toString()); } catch (Exception e) { throw new RuntimeException(e); } } } But is a forward possible using a similar approach?

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• Huge page buffer vs. multiple simultaneous processes

  - by Andrei K.

  One of our customer has a 35 Gb database with average active connections count about 70-80. Some tables in database have more than 10M records per table. Now they have bought new server: 4 * 6 Core = 24 Cores CPU, 48 Gb RAM, 2 RAID controllers 256 Mb cache, with 8 SAS 15K HDD on each. 64bit OS. I'm wondering, what would be a fastest configuration: 1) FB 2.5 SuperServer with huge buffer 8192 * 3500000 pages = 29 Gb or 2) FB 2.5 Classic with small buffer of 1000 pages. Maybe some one has tested such case before and will save me days of work :) Thanks in advance.

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• How to ensure that you are building against STLport.

  - by Pradyot

  I am using Visual C++ 2005 to build a couple of libraries and an executable. I include the STLport location in the Additional Include Path of the libraries and include the library in the input to linker for executable. The library however seems to reffer to stl symbols (such as string) without the stl port namespace. This results in a linker error. these are the relevant lines from the command line on the 2 libraries and executable: /Od /I "..\Junctions\fo_fid_3rdParty\STLport-5.1.0\stlport" /Od /I "..\Junctions\Includes\fo_fid_3rdParty\STLport-5.1.0\stlport" /OUT:"..\ET_BUILD\vc8\Debug\bin\SFGWDealerwebFixAutorecD.exe" /INCREMENTAL:NO /NOLOGO ..\junctions\libs\fo_fid_3rdParty\STLport-5.1.0\lib\stlportstld_vc8.5.1.lib thanks

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• Shortcuts and MSI updates

  - by Filip Navara

  We have an installer for application that is compiled using WiX and each version is updated using a new setup package. The installer creates advertised shortcut in Start menu and users often copy this shortcut to desktop or other location. During an application update a major upgrade is performed and the old shortcuts are removed, which causes the ones copied by users to disappear. This causes a major annoyance to the users. Is there a way to update advertised shortcuts when doing MSI major upgrade (ie. different product code)? Or, is there a way to allow minor updates by just running the setup.msi file (without passing a REINSTALLMODE option on the command line)? Or, is the only way to solve this problem to use non-advertised shortcuts?

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