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• On-demand Webcast: Java in the Smart Grid

  - by Jacob Lehrbaum

  The Smart Grid is one of the most significant evolutions of our utility infrastructure in recent history. This innovative grid will soon revolutionize how utilities manage and control the energy in our homes--helping utilities reduce energy usage during peak hours, improve overall energy efficiency, and lower your energy bills. If you'd like to learn more about the Smart Grid and the role that Java is poised to play in this important initiative you can check out our on-demand webcast. We'll show you how Java solutions--including Java ME and Java SE for Embedded --can help build devices and infrastructure that take advantage of this new market. As the world's most popular developer language, Java enables you to work with a wide range of developers and provides access to tools and resources to build smarter devices, faster and more affordably.

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• How to identify potential for becoming a programmer

  - by Jacob Spire

  There's heaps of information out there on hiring someone who's already a programmer. (Or claims to be one.) But what about identifying someone who has the potential to become a programmer, with little or no knowledge? Aside from the obvious things to look for (smart, gets things done), are there any interview questions and/or tests to determine whether one has the potential to become a programmer? Note: I'm not asking how to tell whether I can learn programming, but how to tell someone else is right for it.

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• TechCast Live: Java and Oracle, One Year Later (tomorrow!)

  - by Jacob Lehrbaum

  On year ago, tomorrow, Oracle became the steward of Java through its acquisition of Sun.We invite you to join us tomorrow on the anniversary of this memorable event for a special TechCast Live conversation with Ajay Patel, VP of Product development for Application Grid Products and Justin Kestelyn of Oracle Technology Network. Topics that will be covered include:- Highlights, challenges and what we learned over the past year - The Future of Java and its importance to Oracle and the community - Oracle's Application Grid product portfolio todayDate:Feb, 15, 10:00am PSTWatch it live (tomorrow)

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• How to make sprint planning fun

  - by Jacob Spire

  Not only are our sprint planning meetings not fun, they're downright dreadful. The meetings are tedious, and boring, and take forever (a day, but it feels like a lot longer). The developers complain about it, and dread upcoming plannings. Our routine is pretty standard (user story inserted into sprint backlog by priority story is taken apart to tasks tasks are estimated in hours repeat), and I can't figure out what we're doing wrong. How can we make the meetings more enjoyable? ... Some more details, in response to requests for more information: Why are the backlog items not inserted and prioritized before sprint kickoff? User stories are indeed prioritized; we have no idea how long they'll take until we break them down into tasks! From the (excellent) answers here, I see that maybe we shouldn't estimate tasks at all, only the user stories. The reason we estimate tasks (and not stories) is because we've been getting story-estimates terribly wrong -- but I guess that's the subject for an altogether different question. Why are developers complaining? Meetings are long. Meetings are monotonous. Story after story, task after task, struggling (yes, struggling) to estimate how long it will take and what it involves. Estimating tasks makes user-story-estimation seem pointless. The longer the meeting, the less focus in the room. The less focused colleagues are, the longer the meeting takes. A recursive hate-spiral develops. We've considered splitting the meeting into two days in order to keep people focused, but the developers wouldn't hear of it. One day of planning is bad enough; now we'll have two?! Part of our problem is that we go into very small detail (in order to get more accurate estimations). But when we estimate roughly, we go way off the mark! To sum up the question: What are we doing wrong? What additional ways are there to make the meeting generally more enjoyable?

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• Missed question in technical phone interview and the follow up letter

  - by Jacob

  I may have just bombed a C++ technical phone interview. The interviewer asked mostly about data structures and I was able to go into detail about each of the data structures he asked about. Score one for me I'm thinking. Wrong. Then he asks to join me on a collaboration website where he can see what I am typing. This was the same process as interview #1 which went well, not perfect, but well. So the question was: How do you reverse a linked list? he gave a function prototype similar to Node *reverse(Node *head) I struggled with this for about 10-15 minutes until the hour was up. I was able to get the general idea across but was not able to reverse the link list. My question is that after remembering the answer post interview do I mention this in the thank you letter, if I even should write one?

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• Unable to detect windows hard drive while running Ubuntu 12.04 from USB

  - by eapen jacob

  I am completely new to Ubuntu. I experimented with Ubuntu 12.04 by running it from a USB drive, in-order to recover files from my hard disc. History: My laptop is an IBM R60 running windows 7. Suddenly it gave me an error stating "error 2100 - Hard drive initialization error". I have read all the forums and most of them suggested that I remove and replace my HDD and that did not work. And one site suggested to try using Ubuntu to recover files. I booted my system from USB, and once Ubuntu came up, I choose "Try Ubuntu". It came up fine and I was able to surf ,and do other things, etc. I was unable to to access my files which are on the hard disc and "Attached Devices" is grayed out. 1- Is there any way to gain access to my hard disc to recover the files? How do I navigate to search for my files. 2- Is it just simply not possible if the hard disc themselves are not working? Is that why I`m unable to find the drives. I know its a very novice question, but hoping someone would help me out. Thank you, Eapen

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• Getting data from csv file and returning objects in collections

  - by Jacob

  I have very simple class of person as below: public class Person { int ID; Gender gender; Date dateOfBirth; public Person(final int iD, final Gender gender,final Date dateOfBirth) { ID = iD; this.gender = gender; this.dateOfBirth = dateOfBirth; } } Gender is enum : public enum Gender { Male, Female } In CSV file i will have data, for example: 1;Male;23-02-2001 2;Female;11-06-1989 3;Male;02-12-1999 Is in java any simple way to get all persons from csv file and return it as ArrayList<Person> persons ?

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• Where to start when digging into an existing J2EE codebase?

  - by Jacob Krustchinsky

  I work for a company that produces enterprise applications to be used by schools and districts to manage all of their tests and standards data. Their existing application is written in J2EE and is very large. I personally am a seasoned PHP and Ruby = RoR developer and I have been asked to attempt to implement easily added but crucial features to an existing J2EE codebase. I am very familiar with Java SE and know the architecture of a web application well. What I am asking for is, will this suffice for the task ahead and what tips can you give me in digging into the code base and actually efficiently adding these new features? Is there anything important I need to know before beginning and what can I expect in terms of problems and issues coming from a Java SE, PHP, RoR background? Time isn't too much of an issue, I should have plenty of time to familiarize myself with J2EE.Please also note, syntax will not be a problem here.

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• Ubuntu 14.04 LTS AMD64 randomly uninstals packages / applications

  - by Jacob Lindeen

  I am having a strange issue. Occasionally when installing new packages, I will get a system crash notification which I will report. The environment then becomes unstable, unity crashes and all open windows, loose title bars, and the main launcher shuts down. I usually have to run the command unity --replace to restore functionality, but ultimately end up having to reboot. Upon booting back up I find all of my user-installed packages are gone and I have to reinstall them via apt. Please tell me someone else is having this issue, because this is the second system and third install I have had this issue on.

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• determine an application's process name on linux (ubuntu)

  - by Jacob

  This is the situation: Working on (the next version of) a Unity quicklist editor, I would like to add a reliable way of "restarting" launcher icons. To do so, I need to remove the icon (editing gsettings) and replace it on the same position. So far no problem. However, if the application in question is running, user will possibly lose data, as the application will quit when it's icon is removed from the launcher. What I need is a reliable way to find an application's process name, to let the editor check in the list of running processes if the application is running, and send a warning message to the user that the icon can not be restarted if the application is running. What i did so far is make the editor look into the desktop file, to read the command, also read the command, stripped from the directory section, and furthermore look into possible remote scripts the desktop file command might refer to, looking for strings starting with "./" Although te method seems to work well with all applications I tested it on, I have the feeling there must be an easier way to cover the problem in an "all in one" way... Is there? also suggestions to catch more exceptional situations are welcome!

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• building a gl3 app under cygwin

  - by user445264

  i've got a small opengl 3.2 app that i've been developing on linux using the standard gnu tools (gmake/gcc). the code seems pretty portable--i had no problems running it on osx until i started using gl3 features that the mac mini gl drivers don't seem to support. i've got a bootcamp partition with windows xp on the same mini, and i'd like to run my app there if possible. the windows drivers definitely support gl 3.2, but i'm having trouble linking. this seems like a really common issue, but i haven't found any answers online that address using opengl 1.2 under cygwin. i'm using glew-1.5.5 and linking like so: g++ -o glToy *.o -L/cygdrive/c/Program\ Files/glew-1.5.5/lib -lglew32 -lglut32 -lglu32 -lopengl32 but i get a whole lot of this sort of output: Program.o:/home/Jacob/glToy/Program.cpp:134: undefined reference to `__imp____glewUseProgram' Program.o:/home/Jacob/glToy/Program.cpp:235: undefined reference to `__imp____glewActiveTexture' Program.o:/home/Jacob/glToy/Program.cpp:73: undefined reference to `__imp____glewGetShaderiv' ... any ideas what i'm doing wrong? or perhaps this isn't a workable setup? other ideas for getting this going on the mac mini (2009 version)? thanks!

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• I install Ubuntu 13.10 and reboot and im on KDE desktop?

  - by jgamer578

  Hi I'm Jacob and I have no idea what's going on. I installed Ubuntu 13.10 today and was playing around with it for a while and dl'd a bunch of apps from software center and stuff. Eventually I installed steam and (finally) got it working. I downloaded TF2 and had some weird issue where the screen got so distorted to the point I could not play. So I dl'd a driver for my graphics card from the additional drivers app (or whatever it's called) and when it was done I restarted my computer (because it said to.) When the PC booted up it loaded the KDE desktop and I have no idea why. I had unity before I rebooted. Ubuntu 13.10 is the only OS installed on my PC, and I still have all the apps that I downloaded, but I kinda like unity (I started using Ubuntu after they switched to unity) and want it back. Thanks for reading and any help in advance, Jacob.

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• Need a little help with sound in a JApplet

  - by jacob schuschel

  I am working on a solitaire game in Java, and i need to implement sound when the desk is shuffled, card flipped, etc. I used the following sites as reference to try and get it to work, but i am getting Null Pointer Exceptions or mishandled URL exception (depending on what i tweak). here Also, i am using netbeans 6.7.1 as my IDE. I will try to break down the code and explain: package cardgame; import java.applet.*; import java.util.logging.Level; import java.util.logging.Logger; import javax.swing.JApplet; import javax.swing.*; import java.io.*; import java.net.*; /** * * @author jacob */ public class Sound extends JApplet { private AudioClip song; // Sound player private String URL = null; private URL songPath; // Sound path /* *sound_1 = shuffling cards *sound_2 = to discard *sound_3 = from discard *sound_4 = cardflip 1 *sound_5 = cardflip 2 */ Sound(String filename) { try { songPath = new URL(getCodeBase(),filename); // Get the Sound URL } catch (MalformedURLException ex) { Logger.getLogger(Sound.class.getName()).log(Level.SEVERE, null, ex); } song = getAudioClip(songPath); // Load the Sound } Sound(int i) { URL = "./sounds/sound_" + i + ".wav"; System.out.println(URL); try { songPath = new URL(URL); // Get the Sound URL song = getAudioClip(songPath); } catch (MalformedURLException ex) { Logger.getLogger(Sound.class.getName()).log(Level.SEVERE, null, ex); } } public void playSound() { song.loop(); // Play } public void stopSound() { song.stop(); // Stop } public void playSoundOnce() { song.play(); // Play only once } } The 2 different construcors are for different ways i tried to implement this. The first one creates the filepath, and passes it in. The second one builds the filepath in the constructor, given a sound # (i made a list of what numbers correspond to what sound for reference). I am getting the followig errors out: ./sounds/sound_1.wav Nov 16, 2009 4:14:13 PM cardgame.Sound ./sounds/sound_2.wav SEVERE: null java.net.MalformedURLException: no protocol: ./sounds/sound_1.wav ./sounds/sound_3.wav at java.net.URL.(URL.java:583) at java.net.URL.(URL.java:480) at java.net.URL.(URL.java:429) ./sounds/sound_4.wav ./sounds/sound_5.wav at cardgame.Sound.(Sound.java:46) at cardgame.Game.loadSounds(Game.java:712) at cardgame.Game.(Game.java:62) at cardgame.Main.main(Main.java:25) Nov 16, 2009 4:14:13 PM cardgame.Sound SEVERE: null java.net.MalformedURLException: no protocol: ./sounds/sound_2.wav at java.net.URL.(URL.java:583) at java.net.URL.(URL.java:480) at java.net.URL.(URL.java:429) at cardgame.Sound.(Sound.java:46) at cardgame.Game.loadSounds(Game.java:712) at cardgame.Game.(Game.java:62) at cardgame.Main.main(Main.java:25) Nov 16, 2009 4:14:13 PM cardgame.Sound SEVERE: null java.net.MalformedURLException: no protocol: ./sounds/sound_3.wav at java.net.URL.(URL.java:583) at java.net.URL.(URL.java:480) at java.net.URL.(URL.java:429) at cardgame.Sound.(Sound.java:46) at cardgame.Game.loadSounds(Game.java:712) at cardgame.Game.(Game.java:62) at cardgame.Main.main(Main.java:25) Nov 16, 2009 4:14:13 PM cardgame.Sound SEVERE: null java.net.MalformedURLException: no protocol: ./sounds/sound_4.wav at java.net.URL.(URL.java:583) at java.net.URL.(URL.java:480) at java.net.URL.(URL.java:429) at cardgame.Sound.(Sound.java:46) at cardgame.Game.loadSounds(Game.java:712) at cardgame.Game.(Game.java:62) at cardgame.Main.main(Main.java:25) Nov 16, 2009 4:14:13 PM cardgame.Sound SEVERE: null java.net.MalformedURLException: no protocol: ./sounds/sound_5.wav at java.net.URL.(URL.java:583) at java.net.URL.(URL.java:480) at java.net.URL.(URL.java:429) at cardgame.Sound.(Sound.java:46) at cardgame.Game.loadSounds(Game.java:712) at cardgame.Game.(Game.java:62) at cardgame.Main.main(Main.java:25) Thanks for those who read and more thanks to those who help. I know it is somewhat long, but i would rather get it all out there, than have 50 questions that come back or have people not answer due to lack of initial info. also only lets me post a single link right now, so the links are given below dreamincode.net/forums/showtopic14083.htm stackoverflow.com/questions/512436/java-playing-wav-sounds deitel.com/articles/java_tutorials/20060422/LoadingPlayingAudioClips/index.html

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• What's the best way to refresh a UITableView within a UINavigationController hierarchy

  - by Steve Neal

  Hi, I'm pretty new to iPhone development and have struggled to find what I consider to be a neat way around this problem. I have a user interface where a summary of record data is displayed in a table inside a navigation controller. When the user clicks the accessory button for a row, a new view is pushed onto the navigation controller revealing a view where the user can edit the data in the corresponding record. Once done, the editing view is popped from the navigation controller's stack and the user is returned to the table view. My problem is that when the user returns to the table view, the table still shows the state of the data before the record was edited. I must therefore reload the table data to show the changes. It doesn't seem possible to reload the table data before it is displayed as the call only updates displayed records. Reloading it after the table has been displayed results in the old data changing before the user's eyes, which I'm not too happy with. This seems to me like a pretty normal thing to want to do in an iPhone app. Can anyone please suggest the best practice approach to doing this? I feel like I'm missing something. Cheers - Steve.

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• Titanium webview bug or "feature"? Numbers converted to telephone links

  - by Alan Neal

  I can't stop Titanium's webview from converting numbers to telephone links. For instance, let's say I programmatically set the innerHTML of a div called test to 96840664702 and then write javascript... alert(document.getElementById('test').innerHTML In Mobile Safari on the iPhone, Firefox, etc., the alert will read "96840664702". If I point Titanium's webview to the same page, the alert will read: <a href="tel:96840664702" x-apple-data=detectors="true">96840664702</a> How can I globally disable the data-detectors? I tried a couple meta-tags... <meta name=”format-detection” content=”telephone=no” > <meta name="x-" http-equiv="x-rim-auto-match" forua="true" content="none"/> ... but they didn't work. I couldn't find a reference for a meta tag that specifically mentioned Apple's detectors. Again, it's only a problem in Titanium's webview. It works everywhere else.

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• Query only the first detail record for each master record

  - by Neal S.

  If I have the following master-detail relationship: owner_tbl auto_tbl --------- -------- owner --- owner auto year And I have the following table data: owner_tbl auto_tbl --------- -------- john john, corvette, 1968 john, prius, 2008 james james, f-150, 2004 james, cadillac, 2002 james, accord, 2009 jeff jeff, tesla, 2010 jeff, hyundai, 1996 Now, I want to perform a query that returns the following result: john, corvette, 1968 jeff, hyundai, 1996 james, cadillac, 2002 The query should join the two tables, and sort all the records on the "year" field, but only return the first detail record for each master record. I know how to join the tables and sort on the "year" field, but it's not clear how (or if) I might be able to only retrieve the first joined record for each owner. Three related questions: Can I perform this kind of query using LINQ-to-SQL? Can I perform the query using T-SQL? Would it be best to just create a stored procedure for the query given its likely complexity?

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• How can I prevent tab characters etc. from being pasted into an asp.net textbox?

  - by Neal

  Hello, I'd like to have an asp.net textbox that people can paste content into and it works like notepad, i.e. no formatting or special characters will get entered. I take text and pass it to a web service which manipulates it and converts it into a tab delimited file. The problem I've experienced is sometimes people copy from MS Word and paste that content in and somehow even the tab characters etc. get passed to the web service. I run routines now to strip that information out but it would be so much easier if the textbox on the web page didn't capture anything but the text itself, i.e. visible characters (numbers, letters, punctuation). Anyone have a suggestion to have a textbox that doesn't capture formatting and non-visual characters? Thank you.

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• Parallel.For System.OutOfMemoryException

  - by Martin Neal

  We have a fairly simple program that's used for creating backups. I'm attempting to parallelize it but am getting an OutofMemoryException within an AggregateExcption. Some of the source folders are quite large, and the program doesn't crash for about 40 minutes after it starts. I don't know where to start looking so the below code is a near exact dump of all code the code sans directory structure and Exception logging code. Any advise as to where to start looking? using System; using System.Diagnostics; using System.IO; using System.Threading.Tasks; namespace SelfBackup { class Program { static readonly string[] saSrc = { "\\src\\dir1\\", //... "\\src\\dirN\\", //this folder is over 6 GB }; static readonly string[] saDest = { "\\dest\\dir1\\", //... "\\dest\\dirN\\", }; static void Main(string[] args) { Parallel.For(0, saDest.Length, i => { try { if (Directory.Exists(sDest)) { //Delete directory first so old stuff gets cleaned up Directory.Delete(sDest, true); } //recursive function clsCopyDirectory.copyDirectory(saSrc[i], sDest); } catch (Exception e) { //standard error logging CL.EmailError(); } }); } } /////////////////////////////////////// using System.IO; using System.Threading.Tasks; namespace SelfBackup { static class clsCopyDirectory { static public void copyDirectory(string Src, string Dst) { Directory.CreateDirectory(Dst); /* Copy all the files in the folder If and when .NET 4.0 is installed, change Directory.GetFiles to Directory.Enumerate files for slightly better performance.*/ Parallel.ForEach<string>(Directory.GetFiles(Src), file => { /* An exception thrown here may be arbitrarily deep into this recursive function there's also a good chance that if one copy fails here, so too will other files in the same directory, so we don't want to spam out hundreds of error e-mails but we don't want to abort all together. Instead, the best solution is probably to throw back up to the original caller of copy directory an move on to the next Src/Dst pair by not catching any possible exception here.*/ File.Copy(file, //src Path.Combine(Dst, Path.GetFileName(file)), //dest true);//bool overwrite }); //Call this function again for every directory in the folder. Parallel.ForEach(Directory.GetDirectories(Src), dir => { copyDirectory(dir, Path.Combine(Dst, Path.GetFileName(dir))); }); } }

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• UISegmentedControl Best Practice

  - by Neal L

  Hi all, I'm trying to work out the "best" way to use a UISegmentedControl for an iPhone application. I've read a few posts here on stackoverflow and seen a few people's ideas, but I can't quite sort out the best way to do this. The posts I'm referring to are: http://stackoverflow.com/questions/1559794/changing-views-from-uisegmentedcontrol and http://stackoverflow.com/questions/1047114/how-do-i-use-a-uisegmentedcontrol-to-switch-views It would seem that the options are: Add each of the views in IB and lay them out on top of each other then show/hide them Create each of the subviews separately in IB, then create a container in the main view to populate with the subview that you need Set up one really tall or really wide UIView and animate it left/right or up/down depending on the selected segment Use a UITabBarController to swap out the subviews - seems silly For tables, reload the table and in cellForRowAtIndex and populate the table from different data sources or sections based on the segment option selected (not the case for my app) So which approach is best for subview/non-table approaches? Which is the easiest to implement? Could you share some sample code to the approach? Thanks!

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• Adapting existing HTML/Javascript model to Titanium's latest release (v 0.9)

  - by Alan Neal

  In pre-0.9 versions of Titanium, one could simply specify an .html file (local or remote) in the tiapp.xml file and interact with it in the same manner as one would on a website. As of version 0.9, that is no the longer case. One creates their entire app dynamically. Unfortunately, this broke my previous implementation and, other than an updated Kitchen Sink, much of the new model and API calls are not covered in the documentation (e.g., createLabel). So, my question is this... What are the simplest steps for re-creating the previous effect (knowingly forgoing some of the advantages of the Titanium's latest approach if necessary)? My previous implementation was exactly as it functions on the website. The website has a single index.html file with no content other than links to JavaScript and style files. The document body's onload event called the first JavaScript function (located in the main script) and, from that point forth, the entire content was dynamically created. How can I set up the latest version of Titanium so that I am poised to do the exact same thing? BTW: Whereas I previously had the choice to keep the files local or remote, I don't believe that remote access (e.g., simply using the webView widget to point to the website) is viable. That's because pages displayed via the webView do not have access to most of the API. Since the iPhone and Safari browsers do not support the file input type, the only means for uploading files (something my app requires) is calling Titanium's function. Thanks in advance.

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• MFMailComposeViewController hangs my app

  - by Neal L

  Hi, I am trying to add email functionality to my app. I can get the MFMailComposeViewController to display correctly and pre-populate its subject and body, but for some reason when the user clicks on the "Cancel" or "Send" buttons in the nav bar the app just hangs. I inserted a NSLog() statement into the first line of mailComposeController"didFinishWithResult:error and it doesn't even print that line out to the console. Does anybody have an idea what would cause the MFMailComposeViewController to hang like that? Here is my code from the header: #import "ManagedObjectEditor.h" #import <MessageUI/MessageUI.h> @interface MyManagedObjectEditor : ManagedObjectEditor <MFMailComposeViewControllerDelegate, UIImagePickerControllerDelegate, UINavigationControllerDelegate> { } - (IBAction)emailObject; @end from the implementation file: if ([MFMailComposeViewController canSendMail]) { MFMailComposeViewController *mailComposer = [[MFMailComposeViewController alloc] init]; mailComposer.delegate = self; [mailComposer setSubject:NSLocalizedString(@"An email from me", @"An email from me")]; [mailComposer setMessageBody:emailString isHTML:YES]; [self presentModalViewController:mailComposer animated:YES]; [mailComposer release]; } [error release]; [emailString release]; and here is the code from the callback: #pragma mark - #pragma mark Mail Compose Delegate Methods - (void)mailComposeController:(MFMailComposeViewController *)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError *)error { NSLog(@"in didFinishWithResult:"); switch (result) { case MFMailComposeResultCancelled: NSLog(@"cancelled"); break; case MFMailComposeResultSaved: NSLog(@"saved"); break; case MFMailComposeResultSent: NSLog(@"sent"); break; case MFMailComposeResultFailed: { UIAlertView *alert = [[UIAlertView alloc] initWithTitle:NSLocalizedString(@"Error sending email!",@"Error sending email!") message:[error localizedDescription] delegate:nil cancelButtonTitle:NSLocalizedString(@"Bummer",@"Bummer") otherButtonTitles:nil]; [alert show]; [alert release]; break; } default: break; } [self dismissModalViewControllerAnimated:YES]; } Thanks!

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• SOAPUI: Document Type Webservices Testing.

  - by Neal Johnson

  Hi , I am new to SOAP UI usage. I would like to test one of the webservices generated using weblogic 8.1 SP 6. The webservice is a document type webservice. Is there any way to test this webservice using SOAP UI ?? Or is there any tool which helps to test document type webservices?? Thanks in advance.

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• c# memory allocation and deallocation patterns

  - by Neal

  Since C# uses Garbage Collection. When is it necessary to use .Dispose to free the memory? I realize there are a few situations so I'll try to list the ones I can think of. If I close a Form that contains GUI type object, are those objects dereferenced and therefore will be collected? If I create a local object using new should I .Dispose of it before the method exits or just let the GC take care of it? What is good practice in this case? Are there any times in which forcing a GC is understandable? Are events collected by the GC when it's object is collected?

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• What is the most basic class that inherits ICollection<T>

  - by Martin Neal

  I need a generic collection class which I can add to, and enumerate over. Since ICollection<T> inherits from IEnumerable<T>, the class really just needs to inherit from ICollection<T>. Is there a simple generic class in the BCL that just inherits ICollection<T>? If not, then what class comes closest? I would guess List<T> which is what I've been using. Is there anything better (by which I mean [smaller/faster/simpler])? Thanks in advance!

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• Using Jquery.Form Plugin + MultiFile to automatically upload a single file

  - by Alan Neal

  I wanted to find a way to upload a single file*, in the background, have it start automatically after file selection, and not require a flash uploader, so I am trying to use two great mechanisms (jQuery.Form and JQuery MultiFile) together. I haven't succeeded, but I'm pretty sure it's because I'm missing something fundamental. Just using MultiFile, I define the form as follows... <form id="photoForm" action="image.php" method="post" enctype="multipart/form-data"> The file input button is defined as... <input id="photoButton" "name="sourceFile" class="photoButton max-1 accept-jpg" type="file"> And the Javascript is... $('#photoButton').MultiFile({ afterFileSelect: function(){ document.getElementById("photoForm").submit(); } }); This works perfectly. As soon as the user selects a single file, MultiFile submits the form to the server. If instead of using MultiFile, as shown above, let's say I include a Submit button along with the JQuery Form plugin defined as follows... var options = { success: respondToUpload }; $('#photoForm').ajaxForm(options); ... this also works perfectly. When the Submit button is clicked, the form is uploaded in the background. What I don't know how to do is get these two to work together. If I use Javascript to submit the form (as shown in the MultiFile example above), the form is submitted but the JQuery.Form function is not called, so the form does not get submitted in the background. I thought that maybe I needed to change the form registration as follows... $('#photoForm').submit(function() { $('#photoForm').ajaxForm(options); }); ...but that didn't solve the problem. The same is true when I tried .ajaxSubmit instead of .ajaxForm. What am I missing? BTW: I know it might sound strange to use MultiFile for single-file uploads, but the idea is that the number of files will be dynamic based on the user's account. So, I'm starting with one but the number changes depending on conditions.

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