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Articles indexed in March 2010

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  • Retrieve Radgrid DetailTable Items from Selected Item in JavaScript

    - by Aaron M
    I am trying to retrieve all of the children items in a detailtable of an item. I can get the item, but I am having no luck in trying to get the children items. Here is the relevant code that I have so far var MasterTable = radgrid.get_masterTableView(); var selectedRows = MasterTable.get_selectedItems(); for (i = 0; i < selectedRows.length; i++) { var row = selectedRows[i]; }

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  • Real world Prolog usage

    - by Hank
    Many study Prolog in college, but I have personally not come in contact with it professionally. The traditional examples given are AI and expert system applications, but what have you used it for and what made Prolog a suitable language for the task?

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  • Objective C Default parameters?

    - by Brian Postow
    I'm writing a C function in Objective C. I want a default value for my last parameter. I've tried: foo(int a, int b, int c = 0); but that's C++ I've also tried foo(int a, int b, int c) { ... } foo(int a, int b) { foo(a, b, 0); } But that's ALSO C++. is there a way to do this in Objective C?

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  • Desktop Application Development with Javascript, Python / Ruby

    - by Chris
    Hello, Besides using Appcelerator's Titanium Desktop, are there other approaches to integrating Javascript and Ruby/Python into cross-platform desktop applications? Just trying to get a sense of the landscape here. From searching the web, it seems Titanium may be leading the charge in terms of this type of integration. I wasn't able to find references that suggest you can do something similar in Adobe AIR. I am interested in building desktop applications that exploit Protovis and possibly other Javascript interactive vis packages for the UI. At the end of the day, I can go the web app route if need be, but being able to develop desktop apps is helpful. Would appreciate your perspective on this... Chris

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  • Vim, vimgrep, and file caching

    - by anon
    My entire source code base is < 20MB. I want it all loaded in memory in the background. So that when I do vimgrep */.cpp */.cxx */.hpp , it doesn't ahve to do file IO since vim has loaded all the files into memory already. How can I achieve this? Thakns!

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  • Using web.config directory security and extensionless urls

    - by Matt Brailsford
    Hi Guys, I'd like to use the built in directory security features built into the web.config to restrict access to child pages of a parent page. My structure is as follows: Members Members/News Members/Press Members/Movies Users should be able to have access to the members parent page, but not child pages. My problem is, because I am using extensionless URLs, the web.config thinks this is a directory and so access is blocked. Is there a way to say only restrict access for sub pages?

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  • Programming activities for high school kids who have no idea what CS or programming is

    - by pointdxt
    I work at a small high school that's in a very high poverty area. There are only a handful of seniors that are thinking about applying to be an engineer of some sort in college and only 1 kid that applied for Computer Science (he has a couple acceptances so far!). He's been talking to me a lot as I majored in Computer Science as well and he is very excited about it. Unfortunately, our school doesn't have a Computer Science course of any kind so he asks me a lot of stuff. I want to help him out since he's really excited about majoring in CS but I don't know where to begin. I could say put Linux on a computer, go online and go research stuff like I did but this kid needs some direction and he doesn't even know what Linux is let alone have a free computer around for that sort of thing. He doesn't know much about CS but is keenly interested in having a computer do all sorts of things but I don't know how to help him in a meaningful way. Any advice? I'm not a teacher at the school so I'm not a great educator, I do IT at the school.

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  • C# StreamReader.ReadLine() - Need to pick up line terminators

    - by Tony Trozzo
    I wrote a C# program to read an Excel .xls/.xlsx file and output to CSV and Unicode text. I wrote a separate program to remove blank records. This is accomplished by reading each line with StreamReader.ReadLine(), and then going character by character through the string and not writing the line to output if it contains all commas (for the CSV) or all tabs (for the Unicode text). The problem occurs when the Excel file contains embedded newlines (\x0A) inside the cells. I changed my XLS to CSV converter to find these new lines (since it goes cell by cell) and write them as \x0A, and normal lines just use StreamWriter.WriteLine(). The problem occurs in the separate program to remove blank records. When I read in with StreamReader.ReadLine(), by definition it only returns the string with the line, not the terminator. Since the embedded newlines show up as two separate lines, I can't tell which is a full record and which is an embedded newline for when I write them to the final file. I'm not even sure I can read in the \x0A because everything on the input registers as '\n'. I could go character by character, but this destroys my logic to remove blank lines. Any ideas would be greatly appreciated.

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  • How to use RewriteBase in .htaccess to rewrite img tags?

    - by Eileen
    I guess I don't understand RewriteBase. I have a (drupal) site built on my dev server and everything works perfectly. I created a fake URL for it in my own apache and hosts file, so I get to my local version with "local-examplesite.com". Eventually it will live at www.examplesite.com, but I want to put up a draft with a temp URL at my hosting company like so: 123.45.67.89/~examplesite . I set the RewriteBase in .htaccess to /~examplesite . All the pages work fine, and all the navigation links go to the right places. But none of my images work! They are of the format src="/sites/default/images/blah.png", and so the tags are getting rendered as src="http://123.45.67.89/sites/default/images/blah.png", instead of src="http://123.45.67.89/~examplesite/sites/default/images/blah.png". Is there any way I can get the site to point to right images? I thought that's what rewritebase was for, but after reading up a bit I guess it is for URLs only (the ones that get rewritten, natch).

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  • High level command line program for burning CDs and DVDs?

    - by stickmangumby
    I'm sick of screwing around trying to script a clean solution to burn multiple files and folders to CDs and DVDs with wodim, growisofs and genisoimage. I'm looking for a high level command line program that uses sensible defaults and takes arguments something like this: [program-name] [cd|dvd] /path/to/dir1/ /path/to/dir2/ /path/to/file ... It should then do all the low level copying and ISO generation transparently and just burn the damn disk! Does anyone have any suggestions? I've looked at several programs but it seems there are too many choices to trawl through and not enough information about them online. Thanks :)

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  • Web 2.0 for the SOA Partner Community - part 2: twitter &amp; wiki &amp; delicious

    - by Jürgen Kress
    Web 2.0 Twitter & Videos & Delicious We launched some additional web 2.0 features – make sure you will use them to promote your services and offerings! Twitter: http://twitter.com/soacommunity Become a follower of our community! If you want us the re-tweet hashtag your tweets with #soacommunity or send them to us @soacommunity Videos http://wiki.oracle.com/videos You want to promote your Videos? Want so share how you install SOA Suite 11g our your SOA experience? At wiki.oracle.com we created a collections: SOA & Oracle Partner Network... Make sure that you add your videos Delicious: http://delicious.com/soacommunity tag your bookmarks with "soacommunity" and we will add this bookmark automatically to the soa community list!

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  • WPF, convert Path.DataProperty to Segment objects

    - by user275587
    I was wondering if there was a tool to convert a path data like "M 0 0 l 10 10" to it's equivalent line/curve segment code. Currently I'm using: string pathXaml = "<Path xmlns=\"http://schemas.microsoft.com/winfx/2006/xaml/presentation\" xmlns:x=\"http://schemas.microsoft.com/winfx/2006/xaml\" Data=\"M 0 0 l 10 10\"/>"; Path path = (Path)System.Windows.Markup.XamlReader.Load(pathXaml); It appears to me that calling XamlParser is much slower than explicitly creating the line segments. However converting a lot of paths by hand is very tedious.

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  • Facebook dialogs keep popping up in Firefox

    - by Pierre Olivier Martel
    I have a facebook application running in a FBML canvas and I have a problem with dialogs (either extended permissions or stream publish dialogs). Once they popup, they keep popping up for every subsequent requests. I've tested it in Chrome and everything works fine. It seems that the URL is chained in Firefox, which gives cryptic long urls like : http://apps.facebook.com/webdweller-po/discover?_fb_q=1&_fb_qsub=apps.facebook.com#!/webdweller-dev/?_fb_q=1&_fb_qsub=apps.facebook.com Did anybody experienced such a bug?

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  • How do I pause main() until all other threads have died?

    - by thechiman
    In my program, I am creating several threads in the main() method. The last line in the main method is a call to System.out.println(), which I don't want to call until all the threads have died. I have tried calling Thread.join() on each thread however that blocks each thread so that they execute sequentially instead of in parallel. Is there a way to block the main() thread until all other threads have finished executing? Here is the relevant part of my code: public static void main(String[] args) { //some other initialization code //Make array of Thread objects Thread[] racecars = new Thread[numberOfRaceCars]; //Fill array with RaceCar objects for(int i=0; i<numberOfRaceCars; i++) { racecars[i] = new RaceCar(laps, args[i]); } //Call start() on each Thread for(int i=0; i<numberOfRaceCars; i++) { racecars[i].start(); try { racecars[i].join(); //This is where I tried to using join() //It just blocks all other threads until the current //thread finishes. } catch(InterruptedException e) { e.printStackTrace(); } } //This is the line I want to execute after all other Threads have finished System.out.println("It's Over!"); } Thanks for the help guys! Eric

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  • Linq To SQL - Specified cast is not valid - SingleOrDefault()

    - by NullReference
    I am trying to do the following... Request request = (from r in db.Requests where r.Status == "Processing" && r.Locked == false select r).SingleOrDefault(); It is throwing the following exception... Message: Specified cast is not valid. StackTrace: at System.Data.Linq.SqlClient.SqlProvider.Execute(Expression query, QueryInfo queryInfo, IObjectReaderFactory factory, Object[] parentArgs, Object[] userArgs, ICompiledSubQuery[] subQueries, Object lastResult) at System.Data.Linq.SqlClient.SqlProvider.ExecuteAll(Expression query, QueryInfo[] queryInfos, IObjectReaderFactory factory, Object[] userArguments, ICompiledSubQuery[] subQueries) at System.Data.Linq.SqlClient.SqlProvider.System.Data.Linq.Provider.IProvider.Execute(Expression query) at System.Data.Linq.DataQuery1.System.Linq.IQueryProvider.Execute[S](Expression expression) at System.Linq.Queryable.SingleOrDefault[TSource](IQueryable1 source) at GDRequestProcessor.Worker.GetNextRequest() Can anyone help me? Thanks in advance!

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  • Best Role-Based Access Control (RBAC) database model

    - by jhs
    What is the best database schema to track role-based access controls for a web application? I am using Rails, but the RBAC plugin linked by Google looks unmaintained (only 300 commits to SVN; latest was almost a year ago). The concept is simple enough to implement from scratch, yet complex and important enough that it's worth getting right. So how do others architect and implement their RBAC model?

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  • Make process run on non EDT (event dispatch thread) thread from EDT

    - by Aly
    I have a method running on the EDT and within that I want to make it execute something on a new (non EDT) thread. My current code is follows: @Override public void actionPerformed(ActionEvent arg0) { //gathering parameters from GUI //below code I want to run in new Thread and then kill this thread/(close the JFrame) new GameInitializer(userName, player, Constants.BLIND_STRUCTURE_FILES.get(blindStructure), handState); }

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