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  • jQuery fadeOut() function doesn't ALWAYS work in Chrome, Firefox, IE

    - by user365568
    Sometimes, the slideshow on my website, which uses fadeOut and fadeIn to cycle through three main images, will fadeIn a new photo without fading in the old one. This doesn't happen every time the page loads though. My site is here (the slideshow will take 7 seconds to change): http://codersarepeople.com/v2/ The code I use is this: slideshow = new Array('#slideshow1','#slideshow2','#slideshow3'); var i = Math.floor(Math.random()*3); $(slideshow[i]).fadeIn(125); var t = setInterval(function() { $(slideshow[i%3]).fadeOut(250,function() { $(slideshow[(i+1)%3]).fadeIn(250); }); i++; },7000);

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  • WPF Drag-to-scroll doesn't work correctly.

    - by Garegin
    Hi all, I am tying to realize a drag-to-scroll functionality in my application and have problems on my way. Can anybody help me? I have a ScrollViewer and inside it an ItemsControl and within ItemsTemplate I have a UserControl. I want to drag that UserControl within ItemsControl. I want the ScrollViewer to scroll down, when I am dragging to the boundaries of the ItemsControl. protected override void OnPreviewMouseMove(System.Windows.Input.MouseEventArgs e) { if (this.IsMouseCaptured) { // Get the new mouse position. Point mouseDragCurrentPoint = e.GetPosition(this); if (Math.Abs(mouseDragCurrentPoint.Y - this.ActualHeight) <= 50) { this._scrollStartOffset.Y += 5; _containingScrollViewer.ScrollToVerticalOffset(this._scrollStartOffset.Y); } if (mouseDragCurrentPoint.Y <= 50) { this._scrollStartOffset.Y -= 5; _containingScrollViewer.ScrollToVerticalOffset(this._scrollStartOffset.Y); } } base.OnPreviewMouseMove(e); } When i start dragging by calling DragDrop.DoDragDrop() scrolling don't happens. But when i disable dragging, the ScrollViewer scrolls down dependong on mouse position. Maybe there's something that i don't take into accont about dragging and Capturing the mouse? Thanks for attention. Garegin

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  • How would I find voluntary programming work?

    - by Ben
    While I look for a job, I'd like to do something useful with my time. I have a feeling there must be schools or charities or other worthy organisations that could use some of my time, but I've no idea how to go about finding them. Is there a marketplace for this kind of thing? I live in the UK.

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  • VB.NET - cannot get Video Preview to work

    - by Yiu Korochko
    Hi, Overflow. I have an application which is supposed to convert a video via DirectShowSource. I have a checkbox which enables a button called "btnviewcrop" which shows a new form called crp.vb for cropping/shearing pixels off the video. Now, I have a Panel1 that I want to set as the owner (the video drawing surface) but when I set it to open, the application crashes (Error: Object reference not set to an instance of an object.) and I do not understand how to fix it. Here is my button code: Imports Microsoft.DirectX.AudioVideoPlayback Private Sub btnviewcrop_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnviewcrop.Click Me.ShowInTaskbar = False Me.Enabled = False crp.Show() Dim cropperv As Video cropperv.Owner = crp.preview cropperv.FromFile(labinputfile.Text, True) cropperv.Play() End Sub

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  • how does Enumerable#cycle work? (ruby)

    - by Radek
    looper = (0..3).cycle 20.times { puts looper.next } can I somehow find the next of 3? I mean if I can get .next of any particular element at any given time. Not just display loop that starts with the first element. UPDATE Of course I went though ruby doc before posting my question. But I did not find answer there ...

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  • How Do Sockets Work in C?

    - by kaybenleroll
    I am a bit confused about socket programming in C. You create a socket, bind it to an interface and an IP address and get it to listen. I found a couple of web resources on that, and understood it fine. In particular, I found an article Network programming under Unix systems to be very informative. What confuses me is the timing of data arriving on the socket. How can you tell when packets arrive, and how big the packet is, do you have to do all the heavy lifting yourself? My basic assumption here is that packets can be of variable length, so once binary data starts appearing down the socket, how do you begin to construct packets from that?

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  • How does file creation work in Java

    - by Ankur
    I am trying to create a file using File newFile = new File("myFile"); However no file called "myFile" is created. This is within a Web application Project i.e. proper form to be pakaged as a WAR but I am calling it as part of a main method (just to see how this works). How can I make it so that a new file is created at a location relative to the current one i.e not have to put in an absolute path.

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  • Django's USE_L10N does not work

    - by jack
    I already set USE_L10N = True in settings.py But in following view: from django.contrib.humanize.templatetags.humanize import intcomma dev view_name(request): output = intcomma(123456) Output is always "123,456" for all locales.

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  • ValidateRequest="false" doesn't work when posting HTML values

    - by Ivan90
    I am developing a personal blog in ASP.NET MVC 1.0. This blog application has Views like "Insert Post", "Edit Post", etc. I need to post a string containing HTML back to the appropriate controller method. That HTML value is being posted from a textarea. I've read that it's necessary to disable ValidateRequest directly on the page with the attribute ValidateRequest = "false" or in the web.config file. When I insert an HTML value in my textarea, I get always the error of 'potential value dangerous'. How can I use ValidateRequest to allow the form element containing HTML values to be posted?

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  • str.format() does not work, keyError

    - by Dor
    The following code raise a keyError exception: addr_list_formatted = [] addr_list_idx = 0 for addr in addr_list: # addr_list is a list addr_list_idx = addr_list_idx + 1 addr_list_formatted.append(""" "{0}" { "gamedir" "str" "address" "{1}" } """.format(addr_list_idx, addr)) Why? Using python 3.1. Thanks.

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  • how does this animation work?

    - by icicleking
    I'm working with cookies to run or not run a jQuery animation someone else built: $(function () { $('div.transitional').click(function () { $('div.intro').removeClass('hidden'); $('div.final').off('click'); }); ShowDiv($("div.transitional.hidden")[0]); }); function ShowDiv(target) { target = $(target); target.removeClass('hidden'); target.delay(500).animate({ opacity: 1.0 }, 300, 'easeInExpo', function () { ShowDiv($("div.transitional.hidden")[0]); }) } I have the cookie part working, but I'm confused about the anonymous function and the "ShowDiv" function. What is each part doing? Functionally, the animation makes visible a series of pictures, then the whole site. I want to skip the animation and just make the whole site visible(if cookies='visited'). I'd like to do this without rewriting the animation script. here's a link. What happens now is if you have the cookie the animation doesn't run and everything is hidden.

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  • How does Object Oriented Programming work?

    - by venom
    Hello, I am not sure about some things in OOP. If I have Class1, which has some private field, for example private Field field1, and make getField1 () { return field1; } then I have some class with constructor public Class2 (Field field) { someMethod(field); } And then I call constructor of Class2 in Class3 like: Class2 cl = new Class2(instanceOfClass1.getField1()); And now the question: Am I working with field1 of instanceOfClass1 in someMethod(field)?

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  • Button in App on iOS 4.2 won't work properly

    - by MatthiasC
    My app, written for the iPad contains several UIButtons. One of them starts and stops an AVAudioPlayer: hitting the button once starts the player, hitting it again stops it accordingly. Rinse and repeat. This all works nicely on iOS version pre 4.2. When installing the App on an iPad with iOS 4.2, the button turns on and off the audio player exactly once, then stops working properly: after hitting the button, it turns into its selected state, but it does not start the audio player (as it should) and hitting the button again doesn't return it to its default state, either. As previously said: it's all fine and dandy pre 4.2, the problem only arises on the most current OS version. XCode 3.2.4 iPad with iOS 4.2

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  • How does array class work in Java?

    - by oks16
    In Java, array is a class and extends Object. I am curious to know about this special array class. I don't find the class definition anywhere. Doing a getClass().getName() gives strange result. String[] array = new String[]{"one","two"}; System.out.println(array.getClass().getName()); // prints [Ljava.lang.String; I want to understand how array works under the hood. Is the array class definition hardcoded in the JVM? Any resources, books, links on this will be helpful. Thank you.

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  • Memory Management iOS dev app doesn't work after a few detail items

    - by user1434846
    I am working on a project with a tableView controller and the detail views contains CMMotionManager.When i open 5 or 6 detailViews all goes well,but after a while the app goes slow and finally crashes.On instruments the only leak is on main.m , also i must say that I'm using ARC and i can't dealloc or realese the instances. Here is the code: First the table view: - (void)viewDidLoad { [super viewDidLoad]; // Do any additional setup after loading the view, typically from a nib. self.title = @"Movement";//Master View Controller title bar UIImage *image = [UIImage imageNamed:@"jg_navibar.png"]; [self.navigationController.navigationBar setBackgroundImage:image forBarMetrics:UIBarMetricsDefault]; //Init the array with data bodypartsMutableArray = [NSMutableArray arrayWithCapacity:26]; BodypartData *part1 = [[BodypartData alloc] init]; part1.bodypartname = @"Shoulder"; part1.movementname = @"Flexion"; part1.fullimageStartingPosition=[UIImage imageNamed:@"2_shoulder_flexion_end_position.jpg"]; part1.fullimageEndedPosition=[UIImage imageNamed:@"2_shoulder_flexion_end_position.jpg"]; part1.thumbimage=[UIImage imageNamed:@"1_shoulder_flexion_landmarks_thumb.jpg"]; [bodypartsMutableArray addObject:part1]; ......... } then the cell: - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"MyBasicCell"]; BodypartData *part = [self.bodypartsMutableArray objectAtIndex:indexPath.row]; cell.textLabel.text =[NSString stringWithFormat:part.movementname]; cell.detailTextLabel.text =[NSString stringWithFormat:part.bodypartname]; cell.imageView.image =part.thumbimage; return cell; } and the the detailViewdid load: - (void)viewDidLoad { [super viewDidLoad]; // Do any additional setup after loading the view, typically from a nib. // Init motionManager object and set the Update Interval _motionManager = [[CMMotionManager alloc]init]; _motionManager.deviceMotionUpdateInterval=1/60; //60 Hz [_motionManager startGyroUpdates]; if (_motionManager.gyroAvailable) { _motionManager.gyroUpdateInterval = 1.0/60.0; [_motionManager startDeviceMotionUpdatesToQueue:[NSOperationQueue currentQueue] withHandler: ^(CMDeviceMotion *motion, NSError *error) { CMAttitude *attitude = motion.attitude; //Calculation with rotationMatrix m11 = [NSString stringWithFormat:@"%.02f", attitude.rotationMatrix.m11]; m12 = [NSString stringWithFormat:@"%.02f", attitude.rotationMatrix.m12]; m13 = [NSString stringWithFormat:@"%.02f", attitude.rotationMatrix.m13]; ......... }

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  • How the websocket bi-directional concept work?

    - by GMsoF
    I think the main difference between websocket and http streaming (I am not refering to polling and long polling) is websocket allows bi-directional communication which is similar to usual raw socket programming. (above is my understanding, could be wrong, feel free to correct me.) My question is how the web client (browser) continue to send another request in the already-opened websocket? Usual http request will treat another request as new socket connection, but websocket does not, that is why I am confused, how it achieve that? It should be handled in Server side or Client (browser) side?

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  • [NSData dataWithContentsOfFile:path] doesn't work

    - by Felics
    Hello, when I have the fallowing code to read a binary file: NSString* file = [NSString stringWithUTF8String:fileName]; NSString* filePath = resource ? [[NSBundle mainBundle] pathForResource:file ofType:nil] : [[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0] stringByAppendingPathComponent: file]; NSData* fileData = [NSData dataWithContentsOfFile:filePath]; Where "fileName" and resource are load function parameters. "resource" is used to know if the file is located in application bundle or in Documents. Sometimes this code works well and sometimes it doesn't. As far I saw this problem is random. I can run the code 10 times in a row and it works fine and after that it gives me nil data without any modification. Does anybody knows what could be the problem? Could it be related with file extension or file name? Thank you. PS: I use this code on iPhone Simulator and the file exists in application bundle.

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  • Should this work?

    - by Noah Roberts
    I am trying to specialize a metafunction upon a type that has a function pointer as one of its parameters. The code compiles just fine but it will simply not match the type. #include <iostream> #include <boost/mpl/bool.hpp> #include <boost/mpl/identity.hpp> template < typename CONT, typename NAME, typename TYPE, TYPE (CONT::*getter)() const, void (CONT::*setter)(TYPE const&) > struct metafield_fun {}; struct test_field {}; struct test { int testing() const { return 5; } void testing(int const&) {} }; template < typename T > struct field_writable : boost::mpl::identity<T> {}; template < typename CONT, typename NAME, typename TYPE, TYPE (CONT::*getter)() const > struct field_writable< metafield_fun<CONT,NAME,TYPE,getter,0> > : boost::mpl::false_ {}; typedef metafield_fun<test, test_field, int, &test::testing, 0> unwritable; int main() { std::cout << typeid(field_writable<unwritable>::type).name() << std::endl; std::cin.get(); } Output is always the type passed in, never bool_.

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  • How does Rails Plugin Storage work?

    - by Kevin
    Trying to figure out how to install rails plugins manually on windows so I have a few questions. What does the directory need to be named in vendor/plugins? Is it arbitrary or is it linked to something within the plugin config files or is that what you set in the environment.rb? Once I've copied the files to the correct directory, do I always need to run something inside like init.rb or is it good to go? What's the difference between 'require' and 'include'? Thanks!

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  • How to work with overlapping repositories in Mercurial

    - by Paul W Homer
    Often I want to have a main repository of source, shared by several "similar" projects. Each sub-project contains most of the same files, but is a specific configurable instance. That means there are usually a bunch of files and directories that need to be different for each instance. In CVS I used to create the main repository and the secondary ones, then use the modules file to bind the two together for a specific name. In SVN I used svn:externals to tie back the secondary directories into the main one. What works in Mercurial?

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  • jQuery innerHTML does not work properly (!)

    - by Kayes
    I was trying to build an <a> tag and set it in a <td> of a table. The string is built perfectly but when I set this as the innerHTML using jQuery, the string gets broken. I can't figure out why this is happening? Any clues? Here's the string I want to set in the <td>: <a onclick='return EditIssueItemBatch('1c1e27a2-beac-4772-a26f-6a7e05529a65', '498ba483-ca06-4b23-b3a9-0085e4760ff1')'>Edit</a> But here is how it looks after setting as innerHTML: <A onclick="return EditIssueItemBatch(" ?498ba483-ca06-4b23-b3a9-0085e4760ff1?)? 1c1e27a2-beac-4772-a26f-6a7e05529a65?,>Edit</A> And the following is my code-snippet.. var tr = $("#itemIssueBatchListTable > tbody:last").children()[data.Index + 1]; ... ... var strBuff = []; strBuff.push("<a onclick='return EditIssueItemBatch('"); strBuff.push(data.ItemIssueBatch.ItemCode_FK); strBuff.push("', '"); strBuff.push(data.ItemIssueBatch.StockDetCode_FK); strBuff.push("')'>Edit</a>"); tr.cells[9].innerHTML = strBuff.join(""); ... ...

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  • How does polymorph ambiguity distinction work?

    - by Pentius
    Given I have a class with two constructors: public class TestClass { ObjectOne o1; ObjectTwo o2; public TestClass(ObjectOne o1) { // .. } public TestClass(ObjectTwo o2) { // .. } } What happens, if I call: new TestClass(null); How to determine the correct method to call? And who determines that? Are there differences between Java and other OOP languages?

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