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  • Hotkey to toggle checkboxes does opposite

    - by Joel Harris
    In this jsFiddle, I have a table with checkboxes in the first column. The master checkbox in the table header functions as expected toggling the state of all the checkboxes in the table when it is clicked. I have set up a hotkey for "shift-x" to toggle the master checkbox. The desired behavior when using the hotkey is: The master checkbox is toggled The child checkboxes each have their checked state set to match the master But what is actually happening is the opposite... The child checkboxes each have their checked state set to match the master The master checkbox is toggled Here is the relevant code $(".master-select").click(function(){ $(this).closest("table").find("tbody .row-select").prop('checked', this.checked); }); function tickAllCheckboxes() { var master = $(".master-select").click(); } //using jquery.hotkeys.js to assign hotkey $(document).bind('keydown', 'shift+x', tickAllCheckboxes); This results in the child checkboxes having the opposite checked state of the master checkbox. Why is that happening? A fix would be nice, but I'm really after an explanation so I can understand what is happening.

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  • parallel computation for an Iterator of elements in Java

    - by Brian Harris
    I've had the same need a few times now and wanted to get other thoughts on the right way to structure a solution. The need is to perform some operation on many elements on many threads without needing to have all elements in memory at once, just the ones under computation. As in, Iterables.partition is insufficient because it brings all elements into memory up front. Expressing it in code, I want to write a BulkCalc2 that does the same thing as BulkCalc1, just in parallel. Below is sample code that illustrates my best attempt. I'm not satisfied because it's big and ugly, but it does seem to accomplish my goals of keeping threads highly utilized until the work is done, propagating any exceptions during computation, and not having more than numThreads instances of BigThing necessarily in memory at once. I'll accept the answer which meets the stated goals in the most concise way, whether it's a way to improve my BulkCalc2 or a completely different solution. interface BigThing { int getId(); String getString(); } class Calc { // somewhat expensive computation double calc(BigThing bigThing) { Random r = new Random(bigThing.getString().hashCode()); double d = 0; for (int i = 0; i < 100000; i++) { d += r.nextDouble(); } return d; } } class BulkCalc1 { final Calc calc; public BulkCalc1(Calc calc) { this.calc = calc; } public TreeMap<Integer, Double> calc(Iterator<BigThing> in) { TreeMap<Integer, Double> results = Maps.newTreeMap(); while (in.hasNext()) { BigThing o = in.next(); results.put(o.getId(), calc.calc(o)); } return results; } } class SafeIterator<T> { final Iterator<T> in; SafeIterator(Iterator<T> in) { this.in = in; } synchronized T nextOrNull() { if (in.hasNext()) { return in.next(); } return null; } } class BulkCalc2 { final Calc calc; final int numThreads; public BulkCalc2(Calc calc, int numThreads) { this.calc = calc; this.numThreads = numThreads; } public TreeMap<Integer, Double> calc(Iterator<BigThing> in) { ExecutorService e = Executors.newFixedThreadPool(numThreads); List<Future<?>> futures = Lists.newLinkedList(); final Map<Integer, Double> results = new MapMaker().concurrencyLevel(numThreads).makeMap(); final SafeIterator<BigThing> it = new SafeIterator<BigThing>(in); for (int i = 0; i < numThreads; i++) { futures.add(e.submit(new Runnable() { @Override public void run() { while (true) { BigThing o = it.nextOrNull(); if (o == null) { return; } results.put(o.getId(), calc.calc(o)); } } })); } e.shutdown(); for (Future<?> future : futures) { try { future.get(); } catch (InterruptedException ex) { // swallowing is OK } catch (ExecutionException ex) { throw Throwables.propagate(ex.getCause()); } } return new TreeMap<Integer, Double>(results); } }

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  • In Objective C, is there a way to call reference a typdef enum from another class?

    - by Adrian Harris Crowne
    It is my understanding that typedef enums are globally scoped, but if I created an enum outside of the @interface of RandomViewController.h, I can't figure out how to access it from OtherViewController.m. Is there a way to do this? So... "RandomViewController.h" #import <UIKit/UIKit.h> typedef enum { EnumOne, EnumTwo }EnumType; @interface RandomViewController : UIViewController { } and then... "OtherViewController.m" -(void) checkArray{ BOOL inArray = [randomViewController checkArray:(EnumType)EnumOne]; }

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  • Launching browser within CherryPy

    - by Alan Harris-Reid
    I have a html page displayed using... cherrypy.quickstart(ShowHTML(htmlfile), config=configfile) Once the page is loaded (eg. initiated via. the command 'python mypage.py'), I would like to automatically launch the browser to display the page (eg. via. http://localhost/8000). Is there any way I can achieve this (eg. via. a hook within CherryPy), or do I have to call-up the browser manually (eg. by double-clicking an icon)? TIA Alan

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  • Google Docs iphone library error reporting

    - by phil harris
    I'm in the process of adding a Google Docs interface to my iPhone app, and I'm largely following the example in the GoogleDocs.m file from Tom Saxton's example app. The objective-c library I'm using is from http://code.google.com/p/gdata-objectivec-client/wiki/GDataObjCIntroduction The library file used is from gdata-objectivec-client-1.10.0.zip. This service:username:password method is a slight variant of the one found in the Saxton file GoogleDocs.m starting at line 351: - (void)service:(NSString *)username password:(NSString *)password { if(service == nil) { service = [[[GDataServiceGoogleDocs alloc] init] autorelease]; [service setUserAgent:s_strUserAgent]; [service setShouldCacheDatedData:NO]; [service setServiceShouldFollowNextLinks:NO]; (void)[service authenticateWithDelegate:self didAuthenticateSelector:@selector(ticket:authenticatedWithError:)]; } // update the username/password each time the service is requested if (username != nil && [username length] && password != nil && [password length]) [service setUserCredentialsWithUsername:username password:password]; else [service setUserCredentialsWithUsername:nil password:nil]; } // associated callback for service:username:password: method - (void)ticket:(GDataServiceTicket *)ticket authenticatedWithError:(NSError *)error { NSLog(@"%@",@"authenticatedWithError called"); if(error == nil) [self selectBackupRestore]; else { NSLog(@"error code(%d)", [error code]); NSLog(@"error domain(%d)", [error domain]); NSLog(@"localizedDescription(%@)", error.localizedDescription); NSLog(@"localizedFailureReason(%@)", error.localizedFailureReason); NSLog(@"localizedRecoveryOptions(%@)", error.localizedRecoveryOptions); NSLog(@"localizedRecoverySuggestion(%@)", error.localizedRecoverySuggestion); } } Please note the service:username:password method and the callback compile and run fine. The problem is that the callback is passing a non-nil NSError object. I added an NSLog() for every error reporting attribute of NSError and the (Xcode) log output of a test run is below. [Session started at 2010-05-27 12:27:16 -0700.] 2010-05-27 12:27:38.778 iFilebox[74596:207] authenticatedWithError called 2010-05-27 12:27:38.779 iFilebox[74596:207] error code(-1) 2010-05-27 12:27:38.780 iFilebox[74596:207] error domain(499324) 2010-05-27 12:27:38.781 iFilebox[74596:207] localizedDescription(Operation could not be completed. (com.google.GDataServiceDomain error -1.)) 2010-05-27 12:27:38.782 iFilebox[74596:207] localizedFailureReason((null)) 2010-05-27 12:27:38.782 iFilebox[74596:207] localizedRecoveryOptions((null)) 2010-05-27 12:27:38.783 iFilebox[74596:207] localizedRecoverySuggestion((null)) My essential question is in the error reporting. I was hoping the localizedDescription would be more specific of the error. All I get for the error code value is -1, and the only description of the error is "Operation could not be completed. (com.google.GDataServiceDomain error -1.". Not very helpful. Does anyone know what a GDataServiceDomain error -1 is? Where can I find a full list of all error codes returned, and a description of what they mean?

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  • C# dependency injection - how to you inject a dependency without source?

    - by Phil Harris
    Hi, I am trying to get started with some simple dependency injection using C# and i've run up against an issue that I can't seem to come up with an answer for. I have a class that was written by another department for which I don't have the source in my project. I wanted to inject an object of this type though a constructor using an interface, but of course, i can't change the injected objects implementation to implement the interface to achieve polymorphism when casting the object to the interface type. Every academic example I have ever seen of this technique has the classes uses classes which are declared in the project itself. How would I go about injecting my dependency without the source being available in the project? I hope that makes sense, thanks.

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  • Dice Emulation - ImageView

    - by Michelle Harris
    I am trying to emulate dice using ImageView. When I click the button, nothing seems to happen. I have hard coded this example to replace the image with imageView4 for debugging purposes (I was making sure the random wasn't fail). Can anyone point out what I am doing wrong? I am new to Java, Eclipse and Android so I'm sure I've probably made more than one mistake. Java: import java.util.Random; import android.app.Activity; import android.os.Bundle; import android.view.View; import android.widget.ArrayAdapter; import android.widget.ImageView; import android.widget.Spinner; import android.widget.Toast; public class Yahtzee4Activity extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); Spinner s = (Spinner) findViewById(R.id.spinner); ArrayAdapter adapter = ArrayAdapter.createFromResource( this, R.array.score_types, android.R.layout.simple_spinner_dropdown_item); adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); s.setAdapter(adapter); } public void onMyButtonClick(View view) { ImageView imageView1 = new ImageView(this); Random rand = new Random(); int rndInt = 4; //rand.nextInt(6) + 1; // n = the number of images, that start at index 1 String imgName = "die" + rndInt; int id = getResources().getIdentifier(imgName, "drawable", getPackageName()); imageView1.setImageResource(id); } } XML for the button: <Button android:id="@+id/button_roll" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/roll" android:onClick="onMyButtonClick" />

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  • Outlook AppointmentItem - How do I programmatically add RTF to its Body?

    - by Stuart Harris
    I would like to set the Body of an AppointmentItem to a string of RTF that contains an embedded image. Setting Microsoft.Office.Interop.Outlook.AppointmentItem.Body results in the RTF appearing as-is in the appointment. I have tried using Redemption which wraps the appointment and exposes an RTFBody property, but the RTF formatting (including the image) is lost. In this example (which doesn't have an embedded image) the RTF appears in the document as-is. Has anyone managed to do this? var appointment = (AppointmentItem)app.CreateItem(OlItemType.olAppointmentItem); appointment.Subject = "test subject"; appointment.Start = DateTime.Now; appointment.End = DateTime.Now.AddHours(1); appointment.Body = @"{\rtf1\ansi\deff0{\fonttbl{\f0 Arial;}}{\colortbl ;\red0\green0\blue255;}\pard\cf1\f0\fs24 Test}"; appointment.Save();

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  • Do I need to syncronize thread access to an int

    - by Martin Harris
    I've just written a method that is called by multiple threads simultaneously and I need to keep track of when all the threads have completed, the code uses this pattern: private void RunReport() { _reportsRunning++; try { //code to run the report } finally { _reportsRunning--; } } This is the only place within the code that _reportsRunning's value is changed, and the method takes about a second to run. Occasionally when I have more than six or so threads running reports together the final result for _reportsRunning can get down to -1, if I wrap the calls to _runningReports++ and _runningReports-- in a lock then the behaviour appears to be correct and consistant. So, to the question: When I was learning multithreading in C++ I was taught that you didn't need to synchronize calls to increment and decrement operations because they were always one assembly instruction and therefore it was impossible for the thread to be switched out mid-call. Was I taught correctly, and if so how come that doesn't hold true for C#?

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  • Display a jQuery Dialog/Popup, then set a hidden field using the result of the dialog

    - by Dan Harris
    The Problem I have a page with a form on. It has a hidden field called: generic_portrait I want the user to click a link "select portrait" This will open a Dialog/Popup using jQuery, based on a dropdown completed earlier in the form. If the value of the dropdown called "gender" is "male" then show male options, if "gender" is set to "female" show female options. Each portrait has a radio button, each with a name assigned "male1", "male2" etc Depending on the radio button selected in the popup, I want the hidden field to be set to match this. The Questions What is the best way to show a dialog/popup using jQuery, different depending on a dropdown box on the page. Use Javascript to see what is selected, then show a corresponding Div? I can do the check to see what the dropdown is set to using jQuery, but how can I then shown a specific popup based on that? Once i've popped it up, how do I take the value assigned to the selected radio box, and set the hidden field called "generic_portrait" to this value. Why i'm asking Normally I would figure this out myself, as i'm sure it's not that difficult, but I don't use Javascript and/or PHP very often, and this is due for a client urgently. So I would really, really appreciate some help on this one. Thanks for all replies in advance.

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  • Repair Windows 7 MBR with Hiren's Boot CD

    - by Joshua Robison
    I would like to repair my Windows 7 MBR using Hiren's Boot CD 15.1. I want to know the generic method, using this CD, to fix an MBR that is hypothetically "toast". This hypothetical HD is as follows: 100 MB MBR partition 60 GB Windows 7 system Let's imagine there is an empty 100 MB partition and the MBR is corrupt beyond repair or completely not there and my only option is Hiren's Boot CD.

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  • In WHM - Addon Domain Matches Primary Domain From Separate Account - I can't delete the addon domain

    - by Joshua Riddle
    I have an account (domian1.com) with the an addon domain (domain2.com) that matches the primary domain (domain2.com) of a separate account. I believe it was created renaming the primary domain of the second account. I want to delete the addon domain from domain1.com. However when I try i get the error: Error from park wrapper: Sorry, you do not control the domain domain2.com Ive tried all the methods in other forum posts and have been unable to successfully remove the addon domain and subdomain from domain1.com. Thanks in advance for all the great input!

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  • Entering BIOs Setup from Supermicro IPMI KVM

    - by Joshua Lim
    I'm having trouble getting into BIOs Setup from Supermicro IPMI "KVM" - Remote Control Console Redirection. I need to change the boot order to CDROM first. I'm running Windows 2008 server. After some Googling, it says here that the method is to: Press TAB to enter Setup screen. Press Esc twice to take effect. http://www.supermicro.com/support/faqs/faq.cfm?faq=6222 A month ago, I tried that 30-40 times + DEL, over 2 hours, it worked. Now, I've been trying the same key combination for more than an hour, rebooting each time it failed, it still doesn't work. Note: I've only got a notebook computer, no extra monitor.

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  • Win XP Pro SP3 MUP.SYS last driver to load before freeze. Can't boot into XP CD / Recovery Console

    - by Joshua
    I've tried everything and have even looked at the thread on this site "Fresh installation of XP hangs after MUP.SYS" but nothing. I'm running Memtest86+ v4.00 but no luck (everything looks good) It freezes at windows boot screen, not even 1 green block shows up in the loader. I go into safemode and it stops at MUP.SYS, it's probably not MUP.SYS that is the problem but it's probably the next file that is trying to load or something. The end-user has not installed anything at all that could be problematic. I have pulled the HDD out and put it into another pc and have checked it, nothing suspicious at all. It's just as clean as when I first cleaned it up and secured it. Someone / anyone please help! :) Thank you!

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  • Is there a way to make Apple Mail work well with Exchange server calendar?

    - by Joshua Frank
    My office uses Macs, but most of our clients use Windows and Outlook. Whenever people send invitations from Apple Mail to a Windows/Outlook machine, the invitations are garbled and look nothing like the nicely formatted invitations that Outlook people are used to. We also have no tools to view shared calendars, so we can choose mutually open time slots, and other useful calendar features that Outlook has and Apple Mail seems not to. So is there a plugin or third party program that will give Apple Mail the nice calendar features of Outlook? (By the way, I've looked into actually buying Outlook for Mac, and the pricing is kind of prohibitive, because you MUST buy the whole Office Suite, which we already have, there's no upgrade path, and there's no volume discounting.)

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  • Logging events as an Office 2007 application opens.

    - by Joshua King
    Is it possible to log what a Microsoft Office 2007 application does as it starts up. We are having an issue with Word where it hangs on the splash screen for a particular user and no one else and would like to find out what is causing it to hang. Windows event viewer only shows that the application was terminated unexpectedly because of a hang.

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  • Zabbix Server with Multiple NIC (one on different VLAN) - Monitor a host from both NIC?

    - by Joshua Enfield
    Basically we have many of servers configured for internal use only. I want to ensure the internal services are preserved as internal by checking a host using the local subnet (allowed - this checks if services are up and working), and that the internal services are indeed internal (make sure the services are "down" when checking from different subnet (vlan)) Is there an easy way to do this in Zabbix?

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  • what reverse proxy server will direct traffic to healthy servers whose health is based on a result string

    - by joshua paul
    what reverse proxy server will direct traffic to healthy servers whose health is based on a result string?? ideally i'd like something like dnsmadeeasy or ultradns - lol - but for reverse proxy i have looked at pound, delegate, ha proxy, squid, varnish, nginx, apache, and cherokee but can't see that they will work - they only test for HTTP result code scenario client request www.aaa.com www.aaa.com is a reverse proxy reverse proxy looks at "test.php" on server 1.aaa.com, 2.aaa.com and 3.aaa.com for result string "OK" if the server is "OK" then proxy requests to them help!

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  • Green System Administrator looking for helpful tips

    - by Joshua Anderson
    I have just been promoted to Systems Administrator for our product. We are designing a application that communicates with the cloud(Amazon EC2). I will be in charge of maintaining all Instances and their underlying components. So far this involves a set of load balanced services instances that connect to a central DB in a multi-tennant DB design. Im interested in what other Sys. Admins have discovered as invaluable tools or practices. Any resources provided will be greatly appreciated.

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  • What determines what resolutions a laptop is willing to output over VGA?

    - by Joshua McKinnon
    I'm responsible for several conference rooms and have setup 1080p projectors and I provide both HDMI and VGA connectivity. HDMI for DisplayPort and Mini-DisplayPort, and VGA as a fallback, universal option. Contrary to what I expected, people seem to have much more trouble with the HDMI than VGA, so VGA gets used a lot more than you'd think (even as most workstation laptops made in the last 3-4 years have DisplayPort or Mini-DisplayPort...). Also to my surprise, VGA outputs over 1080p on a 50ft cable run with very minimal degradation on certain laptops - other laptops just don't offer 1080p as a resolution choice and top out at 1600x1200 or something else. Specific example: a ThinkPad W530 will do 1080p, a W520 won't, over VGA. (both do 1080p over displayport/mini-DP) What determines what resolutions a laptop is willing to output over VGA? I'm thinking this will come down to either a video driver that says it supports only certain resolutions for output, or limitations of the RAMDAC (which wouldn't be in play, at least DAC wise, on a digital output, but WOULD on VGA, an analog output). The basic reason for the question is that I noticed, say, a ThinkPad W520 with 1080p built in display, will output 1080p fine over DisplayPort to a 1080p projector, but will cap out at 1600x1200 (practically the same pixel count, just a little shy) on VGA. Now, this wouldn't be surprising at all except SOME laptops have no issue outputting 1080p over VGA, even with lower native resolutions. Why do I care? Well if there's some way I could enable it... for situations where my users end up using VGA anyway, it's preferable for display mirroring if they can output their laptop's native resolution, which, you guessed it, is very often 1080p on 15" models. DISCLAIMER: This is primarily a curiosity, I'm not claiming 1080p over VGA is ideal by any means, but hey, if it works. I've seen HDMI start artifacting more over same-length, same gauge cabling (up to 50' run in certain rooms). If you think this is better suited to SuperUser, please move it, but this is framed from an IT standpoint of something that affects a real pool of users in a multiple conference room, 50+ deployed laptop scenario.

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  • How do I connect to my wireless router settings on Linux?

    - by Joshua Robison
    My network is as follows: Internet Provider's DSL modem connected to Internet Provider's router connected to My Buffalo Wireless router connected to My Toshiba Laptop via WEP network My Toshiba Laptop is running LMDE Linux Mint Debian Edition Service Pack 3 i686 kernel I have experience using various routers and their configuration settings but for some reason I can not access my wireless router. In my cromium browser I tried the following ip addresses: Standard Usual IPs : 192.168.1.1, 192.168.0.1 (connection hangs and goes no where) On the back of my router: 192.168.11.1, 192.168.11.100 (connection hangs and goes nowhere ) In some tcpip info: 192.168.24.1 (unable to connect error message) If someone could give me some terminal commands that will help me find my wireless router address or some trouble shooting ideas, I would be very thankful.

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  • Help Selecting The Best WebHost

    - by Joshua
    Can anyone recommend a user-friendly (I'm new to website development) and inexpensive web host (my websites are simple and small, so no need for a beef-eating server) that will allow me write access to the file system from PHP? My current web host won't allow me to write to the file system, and keeping everything in the database is slow, and a pain.

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  • Windows 7 hangs while loading desktop

    - by Joshua
    I am facing a weird problem. My computer hangs while loading the desktop, and only the background shows up; no icons or bars load. If I power the system on and off about 4-6 times, I may be able to use it normally. The desktop loads normally after rebooting or in safe mode; this only occurs when I start the system normally. I've tried several things to fix it, such as removing all start-up items, but it still doesn't solve the problem. What should I do? I found three major errors in Event Viewer: Source: Microsoft-Windows-DistributedCOM Level: Error DCOM got error "1084" attempting to start the service WSearch with arguments "" in order to run the server: {7D096C5F-AC08-4F1F-BEB7-5C22C517CE39} Source: Microsoft-Windows-DistributedCOM Level: Error DCOM got error "1084" attempting to start the service WSearch with arguments "" in order to run the server: {7D096C5F-AC08-4F1F-BEB7-5C22C517CE39} Source: Service Control Manager Level: Error The Network List Service service depends on the Network Location Awareness service which failed to start because of the following error: The dependency service or group failed to start.

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  • How can I set my wireless router to run on a time schedule?

    - by Joshua Robison
    I have a Buffalo AirStation WZR-HP-G301NH I am able to access it's settings via 192.168.11.1 I'm connecting wirelessly with toshiba i686 laptop on Linux Mint Debian with service pack 3 and i686 dual core kernel This is just my home network but I know that there must be a way for large industries to shut their networks down or lock out their network access temporarily based on a time schedule, automatically. Like mon - fri the network provides access from 8am to 10pm and then automatically shuts down. I want this to affect all the computers accessing this netowork... basically all my families computers so that the internet just automatically shuts down at bedtime. I am running Linux Mint Debian and so maybe I need to make a cron job or something but does anyone know how big industries implement this and how I can do it privately? TIA

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