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• Agile Approach for WCM

  - by cameron.f.logan

  Can anyone provide me with advice, opinions, or experience with using an agile methodology to delivery an enterprise-scale Web Content Management system (e.g., Interwoven TeamSite, Tridion)? My current opinion is that to implement a CM system there is a certain--relatively high--amount of upfront work that needs to happen to make sure the system is going to be scalable and efficient for future projects for the multi-year lifespan an WCM is expected to have. This suggests a hybrid approach at best, if not a more waterfall-like approach. I'm really interested to learn what approaches others have taken. Thanks.

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• design using a readonly class in c#

  - by edosoft

  Hi Small design question here. I'm trying to develop a calculation app in C#. I have a class, let's call it InputRecord, which holds 100s of fields (multi dimensional arrays) This InputRecordclass will be used in a number of CalculationEngines. Each CalculcationEngine can make changes to a number of fields in the InputRecord. These changes are steps needed for it's calculation. Now I don't want the local changes made to the InputRecord to be used in other CalculcationEngine's classes. The first solution that comes to mind is using a struct: these are value types. However I'd like to use inheritance: each CalculationEngine needs a few fields only relevant to that engine: it's has it's own InputRecord, based on BaseInputRecord. Can anyone point me to a design that will help me accomplish this?

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• Audio Player with Custom Buttons

  - by Bryan Wong

  I am developing a website but require help regarding a simple javascript audio player. Currently, I have four divs set up as the "buttons" : previous song; pause; play; and next song. Pretty much self explanatory, each button serves its obvious function, previous song, pause the song, play the song, and next song. With this in mind, I am also hoping to have the music start playing right after the page completes loading. I understand there are numerous javascript solutions that involve the use of third-party "applications" such as jplayer, however, I am not well learned in javascript and would like to request the aid of the general body in this matter. LOL. that was awkwardly formal. Um, but yes. I am looking for a way to use my four divs as the controllers of a multi-track audio player. Thanks,

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• How to model my database when using entity framework 4?

  - by Junior Ewing

  Trying to wrap my head around the best approach in modelling a database when we are using Entity Framework 4 as the ORM layer. We are going to use asp.net mvc 2 for the application. Is it worth trying to model using the class diagram modeller that comes with Visual Studio 2010 where you graphically configure your models into the EDMX file and then generate out the database structure? I have run into a bunch of non trivial issues and for complex many to many mappings or multi primary key entities the answer is not that obvious even after poking around a while with the tools. I figure its easy at this point to give up and start modelling the DB using real, working DB modelling tools and then try to generate out the EDMX from the database, rather than trying to do the model first approach.

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• JavaScript Array Problem

  - by JasonS

  Hi, This wasn't the question I was going to ask but I have unexpectedly run aground with JavaScript arrays. I come from a PHP background and after looking at a few websites I am none the wiser. I am trying to create a multi-dimensional array. var photos = new Array; var a = 0; $("#photos img").each(function(i) { photos[a]["url"] = this.src; photos[a]["caption"] = this.alt; photos[a]["background"] = this.css('background-color'); a++; }); Error message: photos[a] is undefined. How do I do this. Thanks.

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• How to change font size in a pickerview?

  - by user183804

  I'm fairly new to iPhone programming and am trying to implement a double-component PickerView. At this point the picker works fine in terms of taking user input, created with Interface Builder. However, I need to change the font size to accommodate the text length in each column. I very much would appreciate any link to a straightforward method to creating a multi-component picker with an adjustable font size. Seems like it is not possible if Interface Builder is used to create the picker. So far I have not found any code links that address this issue in detail. Thanks in advance.

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• Suppressing the language select button iPhone

  - by AWinter

  I'm working on an application now that contains an account register section. One field with secureTextEntry = NO (for registering only). The idea is this make registration faster and hopefully increases the number of signups. It's simple enough for me to just place a regular UITextField but if the user has any additional language keyboards then it's possible for the user to enter non-password friendly characters. Unlike in when secureTextEntry = YES. I know I can do textField.keyboardType = UIKeyboardTypeASCIICapable to get the text field to display the ASCII keyboard first, but the user will still have the keyboard switch button which will allow them to get to undesirable characters. Is there a simple method for suppressing the international button or forcing ASCII only keyboard with no international button? [EDIT] Another perhaps better option might be to suppress multi byte keyboards or even to display the text in the case that secureTextEntry = YES any ideas here? [EDIT AGAIN] I've decided it's a really bad idea to suppress the international button as non-multibyte characters should all be allowed.

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• Should I use DTOs as my data models in MVVM?

  - by JonC

  I'm currently working on what will be my first real foray into using MVVM and have been reading various articles on how best to implement it. My current thoughts are to use my data models effectively as data transfer objects, make them serializable and have them exist on both the client and server sides. It seems like a logical step given that both object types are really just collections of property getters and setters and another layer in between seems like complete overkill. Obviously there would be issues with INotifyPropertyChanged not working correctly on the server side as there is no ViewModel to which to communicate, but as long as we are careful about constructing our proper domain model objects from data models in the service layer and not dealing the the data models on the server side I don't think it should be a big issue. I haven't found too much info about this approach in my reading, so I would like to know if this is a pretty standard thing, is this just assumed to be the de facto way of doing MVVM in a multi-tier environment? If I've got completely the wrong idea about things then thoughts on other approaches would be appreciated too.

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• How-to dispose a waithandle correctly

  - by TomTom

  Hello, I'm doing some multi-threading and use AutoResetEvents and ManualResetEvents do control my main - loop. When "destryoing" the threads I also have to dispose these signals, that's clear. But I saw different ways how to dispose Waithandles, and I'm not sure which one is correct: Version 1 if (disposing) { this.threadExitEvent.SafeWaitHandle.Dispose(); this.threadExitEvent.Close(); this.threadExitEvent = null; .... } Version 2 if (disposing) { this.threadExitEvent.Close(); this.threadExitEvent = null; .... } Version 3 if (disposing) { this.threadExitEvent.Close(); .... }

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• Coredump in Multithreading Application in RHEL-5(Help Required)

  - by Chinnu

  I am working on multi-threading application it is dumping frequently.I could not able to analyaze the core.The core is showing like this Core was generated by `thread-process '. Program terminated with signal 6, Aborted. 0 0x00000038f4e30045 in raise () from /lib64/libc.so.6 (gdb) where 0 0x00000038f4e30045 in raise () from /lib64/libc.so.6 1 0x00000038f4e31ae0 in abort () from /lib64/libc.so.6 2 0x00000038f4e681bb in __libc_message () from /lib64/libc.so.6 3 0x00000038f4e72b96 in free () from /lib64/libc.so.6 4 0x000000000046a137 in std::string::substr () 5 0x000000000042c549 in std::operator<< , std::allocator () 6 0x000000000042cc1d in std::operator<< , std::allocator () 7 0x000000000046b069 in std::string::substr () 8 0x000000000046c866 in std::string::substr () 9 0x0000000000431062 in std::operator<< , std::allocator () 10 0x00000038f5a062e7 in start_thread () from /lib64/libpthread.so.0 11 0x00000038f4ece3bd in clone () from /lib64/libc.so.6

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• Custom User Management for Google App Engine Java

  - by Gopi

  I am using GAE Java for a multi-user application. There are multiple users with different roles. Each user can login, do some operations and logout. The business restricts me from using Google User Service and I need to implement my own for authentication and session management. Can anyone please share with me how should I go about implementing my own user management? I have read its very tricky to implement own user management. Any pointers in terms of best approaches/ design / existing frameworks if any ? I could see some similar posts but they are for python.

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• Dynamically display properties of a control

  - by Ram

  Hi, To access the properties of windows controls in multi threaded application, I have modified my code as specified here solution. Although for calling the "SetControlValueMethod" I also need to pass the type of control and its specific property as text. I am looking for more convenient approach for callingvoid SetControlValueMethod(Control controlType,string propertyName, object value) Can I have all controls as a enum as first parameter. can I have properties of the selected control appear for second parameter, I don't want to type property name there. Can I have them appearing like enum for selected control?

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• Getting XML Numbered Entities with PHP 5 DOM

  - by user343607

  Hello guys, I am new here and got a question that is tricking me all day long. I've made a PHP script, that reads a website source code through cURL, then works with DOMDocument class in order to generate a sitemap file. It is working like a charm in almost every aspect. The problem is with special characters. For compatibility reasons, sitemap files needs to have all special chars encoded as numbered entities. And I am not achieving that. For example, one of my entries - automatically read from site URLs, and wrote to sitemap file - is: http://www.somesite.com/serviços/redesign/ On the source code it should looks like: http://www.somesite.com/servi*ç*os/redesign/ Just this. But unfortunately, I am really not figuring it out how to do it. Source code file, server headers, etc... everything is encoded as UTF-8. I'm using DOMDocument and related extensions to build the XML. (Basically, DOMDocument, $obj-createElement, $obj-appendChild). htmlentities gives ç instead of ç str_replace does not work. It makes the character just vanish in the output. I was using $obj-createElement("loc", $url); on my code, and just now I read in PHP manual that I should use $document-createTextNode($page), in order to have entities encoding support. Well, it is not working either. Any idea on how to get unstuck of this? Thanks.

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• What online brokers offer APIs?

  - by Wilco

  So I'm getting really sick of E*TRADE and, being a developer, would love to find an online broker that offers an API. It would be great to be able to write my own trading tools, and maybe even modify existing ones. Based on my research so far, I've only found one option. Interactive Brokers offers a multi-language API (Java/C++/ActiveX/DDE) and has some fairly decent commission rates to boot. I want to make sure there aren't any other options out there I should be considering. Any ideas? Update: Based on answers so far, here's a quick list... Interactive Brokers Java C++ ActiveX DDE for Excel Pinnacle Trading C++ Perl VB.NET Excel MB Trading

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• Cross Theaded Calls - Many controls Heavy GUI Application after .net 1.1 2.0 upgrade- best way ??

  - by keepsmilinyaar

  I have recently upgraded a .net1.1 solution to .net2.0. AS this is a very heavy GUI appilcation with loads of controls and many multithreaded operations that update the GUI. While these operations worked seamlessly in .net1.1 it is throwing up Cross Threaded Illegal operations after the upgrade. Considering the fact that tehre are numerous grids, buttons and status labels that need to be updated via these multi threaded operations, I decided to code for checking the InvokeRequired solution, however doing that for every control would probably not be the best way to go about it. I was wondering if you could suggest a better way of how I can go about it or propose any OOPS based class structure that I could code around to make the code look better. Please do let me know if my question is unclear. Thanks in advance

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• Erlang on a JVM/CLR

  - by Fortyrunner

  I've just started reading Joe Armstrongs book on Erlang and listened to his excellent talk on Software Engineering Radio. Its an interesting language/system and one whose time seems to have come around with the advent of multi-core machines. My question is: what is there to stop it being ported to the JVM or CLR? I realise that both virtual machines aren't setup to run the lightweight processes that Erlang calls for - but couldn't these be simulated by threads? Could we see a lightweight or cutdown version of Erlang on a non Erlang VM?

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• How to make double[,] x_List in C#3.0?

  - by Newbie

  I ned to implement the multi-linear regression in C#(3.0) by using the LinESt function of Excel. Basically I am trying to achieve =LINEST(ACL_returns!I2:I10,ACL_returns!J2:K10,FALSE,TRUE) So I have the data as below double[] x1 = new double[] { 0.0330, -0.6463, 0.1226, -0.3304, 0.4764, -0.4159, 0.4209, -0.4070, -0.2090 }; double[] x2 = new double[] { -0.2718, -0.2240, -0.1275, -0.0810, 0.0349, -0.5067, 0.0094, -0.4404, -0.1212 }; double[] y = new double[] { 0.4807, -3.7070, -4.5582, -11.2126, -0.7733, 3.7269, 2.7672, 8.3333, 4.7023 }; I have to write a function whose signature will be Compute(double[,] x_List, double[] y_List) { LinEst(x_List,y_List, true, true); < - This is the excel function that I will call. } My question is how by using double[] x1 and double[] x2 I will make double[,] x_List ? I am using C#3.0 and framework 3.5. Thanks in advance

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• New/strange Java "try()" syntax?

  - by Ali

  While messing around with the custom formatting options in Eclipse, in one of the sample pieces of code, I say code as follows: /** * 'try-with-resources' */ class Example { void foo() { try (FileReader reader1 = new FileReader("file1"); FileReader reader2 = new FileReader("file2")) { } } } I've never seen try used like this and I've been coding in Java for 9 years! Does any one know why you would do this? What is a possible use-case / benefit of doing this? An other pieces of code I saw, I thought was a very useful shorthand so I'm sharing it here as well, it's pretty obvious what it does: /** * 'multi-catch' */ class Example { void foo() { try { } catch (IllegalArgumentException | NullPointerException | ClassCastException e) { e.printStackTrace(); } } }

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• How to signal a buffer full state between posix threads

  - by mikip

  Hi I have two threads, the main thread 'A' is responsible for message handling between a number of processes. When thread A gets a buffer full message, it should inform thread B and pass a pointer to the buffer which thread B will then process. When thread B has finished it should inform thread A that it has finished. How do I go about implementing this using posix threads using C on linux. I have looked at conditional variables, is this the way to go? . I'm not experienced in multi threaded programming and would like some advice on the best avenue to take. Thanks

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• Marshal managed string[] to unmanaged char**

  - by Vince

  This is my c++ struct (Use Multi-Byte Character Set) typedef struct hookCONFIG { int threadId; HWND destination; const char** gameApps; const char** profilePaths; } HOOKCONFIG; And .Net struct [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)] public struct HOOKCONFIG { public int threadId; public IntPtr destination; // MarshalAs? public string[] gameApps; // MarshalAs? public string[] profilePaths; } I got some problem that how do I marshal the string array? When I access the struct variable "profilePaths" in C++ I got an error like this: An unhandled exception of type 'System.AccessViolationException' occurred in App.exe Additional information: Attempted to read or write protected memory. This is often an indication that other memory is corrupt. MessageBox(0, cfg.profilePaths[0], "Title", MB_OK); // error ... Orz

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• Apply dynamic list of templates to an argument

  - by Diego Martinez

  I need apply a variable sequence of templates to an argument. example 1: arg:tpl1():tpl2():...:tplN() Suppose that i have other multi valued argument, and each value is the name for a dynamic template invocation. ¿What is the better form of apply all the templates from the list to my argument? tplNames : {name | <(name)(arg)>} not works, just apply a template ever to the same innitial value of my argument, i need the same result of example 1 but in a dynamic way. Thank you!!

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• Measuring CPU time per-thread on Windows

  - by Eli Courtwright

  I'm developing a long-running multi-threaded Python application for Windows, and I want the process to know the CPU time that each of its threads has taken. I can get the overall times for the entire process with os.times() but I need to know the per-thread times. I know that there are external tools such as the Sysinternals Process Explorer, but my program itself needs to have this information. If I were on Linux, I look in the /proc filesystem, as described here. If I were writing C code, I'd use the GetThreadTimes call, as described here. So how can I accomplish this on Windows using Python?

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• How do I diff two spreadsheets?

  - by neu242

  We have a lot of spreadsheets (xls) in our subversion repository. These are usually edited with gnumeric or openoffice.org, and are mostly used to populate databases for unit testing with dbUnit. There are no easy ways of doing diffs on xls files that I know of, and this makes merging extremely tedious and error prone. I've found Spreadsheet Compare, but it requires Excel 2000 or later. I've also tried to convert the spreadsheets to xml and doing a regular diff, but it really feels as a last resort. Are there any tools for diffing two spreadsheets (xls or ods)? I am primarily looking for a multi-platform/open source tool.

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• Why people don't use LabView for purposes other than data acquisition and virtualization?

  - by Anzurio

  This is marked as a subjective question, I hope I won't get too many down votes though. LV seems to offer a nice graphic alternative to traditional text based programming. As I understand, it's not a just-virtualization/data acquisition programming language. Nonetheless, it seems to have that paradigm pegged to its creator's name. My question comes up because it doesn't seem to be widely used for multi-purpose applications. I'm not a LV-expert of any kind, I'm more like a learner. I'm still getting used to LV.

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• Do you use Scimore SQL database ?

  - by Darian Miller

  There's a database engine that looks amazing for a free tool and that is Scimore. Have you had much experience with it? If so, how does it rate..particularly against Firebird? How resilient/self reliant is it? (Meaning how much downtime/maintenance is expected?) The scale out capabilities also look very interesting. I just downloaded it and have been playing around and so far it looks good. I had been looking for an easy to deploy single-user type embedded database (which Scimore has an option) and was toying with MS SQL Compact Edition and SQLite and remembered this database from a trial a few years ago. (Windows platform) I was about ready to settle in on SQLite but started thinking about other projects which are multi-user and wanted to stick with a single solution...which is why I started looking at Firebird as well.

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