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  • Core-Data + AFNetworking + UI Updating (Responsiveness)

    - by Mustafa
    Here's the scenario: I'm writing a DownloadManager, that allows the user to download, pause, cancel, download all, and pause all. The DownloadManager is a singleton, and uses AFNetworking to download files. It has it's own private managed object context, so that user can freely use other parts of the application (by adding, editing, deleting) core-data objects. I have a core-data entity DownloadInfo that stores the download information i.e. fileURL, fileSize, bytesRead, etc. The DownloadManager updates the download progress in DownloadInfo (one for each file). I have a DownloadManagerViewController which uses NSFetchedResultsController to show the download status to the user. This download view controller is using the main managed object context. Now let's say that I have 20 files in the download queue. And let's say that only 3 concurrent downloads are allowed. The download manager should download the file, and show the download progress. Problem: The DownloadInfo objects are being updated by the DownloadManager at a very high rate. The DownloadManagerViewController (responsible for showing the download progress) is updating the list using NSFetchedResultsControllerDelegate methods. The result is that a lot is happening in the main queue and application has very poor responsiveness. How can I fix this? How can I make the application responsive, while showing the download progress? I don't know how else to communicate that the download status between DownloadManager and DownloadManagerViewController. Is there another/ a better way to do this? I don't want to use main managed object context in my DownloadManager, for reasons mentioned above. Note, that the DownloadManager is using AFNetworking which is handling the requests asynchronously, but eventually the DownloadInfo objects are updated in the main thread (as a result of the callback methods). Maybe there's a way to handle the downloads and status update operations in a background thread? but how? How will I communicate between the main thread and the background thread i.e. how will I tell the background thread to queue another file for download? Thanks.

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  • remove json attribute where attribute is a variable

    - by pedalpete
    I have a news feed where items in the feed are created from JSON returned from a server. When the user takes an action on an item, I want to remove it from the object via javascript. The feed looks like this: {"newsFeed":[{"feedId":"1", "title":"item1 title", "desc":"description of the item"}, {"feedId":"2", "title":"item2 title", "desc":"description of the item"}]} I'm trying to remove a JSON attribute or entry where the feedId is passed in via a variable using jQuery. I'm not sure exactly where I'm going wrong here, but when I alert the feed before and after the removal of the object, I'm getting the same response: function removeFromFeed(feedId){ var newsFeed=jQuery('div#newsFeed').data('newsFeed'); alert(newsFeed.toSource()); delete newsFeed.feedId[feedId] jQuery('div#newsFeed').data('newsFeed',newsFeed); alert(newsFeed.toSource()); }

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  • Possible to manipulate UI elements via dispatchEvent()?

    - by rinogo
    Hi all! I'm trying to manually dispatch events on a textfield so I can manipulate it indirectly via code (e.g. place cursor at a given set of x/y coordinates). However, my events seem to have no effect. I've written a test to experiment with this phenomenon: package sandbox { import flash.display.Sprite; import flash.events.MouseEvent; import flash.text.TextField; import flash.text.TextFieldType; import flash.text.TextFieldAutoSize; import flash.utils.setTimeout; public class Test extends Sprite { private var tf:TextField; private var tf2:TextField; public function Test() { super(); tf = new TextField(); tf.text = 'Interact here'; tf.type = TextFieldType.INPUT; addChild(tf); tf2 = new TextField(); tf2.text = 'Same events replayed with five second delay here'; tf2.autoSize = TextFieldAutoSize.LEFT; tf2.type = TextFieldType.INPUT; tf2.y = 30; addChild(tf2); tf.addEventListener(MouseEvent.CLICK, mouseListener); tf.addEventListener(MouseEvent.DOUBLE_CLICK, mouseListener); tf.addEventListener(MouseEvent.MOUSE_DOWN, mouseListener); tf.addEventListener(MouseEvent.MOUSE_MOVE, mouseListener); tf.addEventListener(MouseEvent.MOUSE_OUT, mouseListener); tf.addEventListener(MouseEvent.MOUSE_OVER, mouseListener); tf.addEventListener(MouseEvent.MOUSE_UP, mouseListener); tf.addEventListener(MouseEvent.MOUSE_WHEEL, mouseListener); tf.addEventListener(MouseEvent.ROLL_OUT, mouseListener); tf.addEventListener(MouseEvent.ROLL_OVER, mouseListener); } private function mouseListener(event:MouseEvent):void { //trace(event); setTimeout(function():void {trace(event); tf2.dispatchEvent(event);}, 5000); } } } Essentially, all this test does is to use setTimeout to effectively 'record' events on TextField tf and replay them five seconds later on TextField tf2. When an event is dispatched on tf2, it is traced to the console output. The console output upon running this program and clicking on tf is: [MouseEvent type="mouseMove" bubbles=true cancelable=false eventPhase=3 localX=0 localY=1 stageX=0 stageY=1 relatedObject=null ctrlKey=false altKey=false shiftKey=false delta=0] [MouseEvent type="rollOver" bubbles=false cancelable=false eventPhase=2 localX=0 localY=1 stageX=0 stageY=1 relatedObject=null ctrlKey=false altKey=false shiftKey=false delta=0] [MouseEvent type="mouseOver" bubbles=true cancelable=false eventPhase=3 localX=0 localY=1 stageX=0 stageY=1 relatedObject=null ctrlKey=false altKey=false shiftKey=false delta=0] [MouseEvent type="mouseMove" bubbles=true cancelable=false eventPhase=3 localX=2 localY=1 stageX=2 stageY=1 relatedObject=null ctrlKey=false altKey=false shiftKey=false delta=0] [MouseEvent type="mouseMove" bubbles=true cancelable=false eventPhase=3 localX=2 localY=2 stageX=2 stageY=2 relatedObject=null ctrlKey=false altKey=false shiftKey=false delta=0] [MouseEvent type="mouseMove" bubbles=true cancelable=false eventPhase=3 localX=2 localY=3 stageX=2 stageY=3 relatedObject=null ctrlKey=false altKey=false shiftKey=false delta=0] [MouseEvent type="mouseMove" bubbles=true cancelable=false eventPhase=3 localX=3 localY=3 stageX=3 stageY=3 relatedObject=null ctrlKey=false altKey=false shiftKey=false delta=0] [MouseEvent type="mouseMove" bubbles=true cancelable=false eventPhase=3 localX=5 localY=3 stageX=5 stageY=3 relatedObject=null ctrlKey=false altKey=false shiftKey=false delta=0] [MouseEvent type="mouseMove" bubbles=true cancelable=false eventPhase=3 localX=6 localY=5 stageX=6 stageY=5 relatedObject=null ctrlKey=false altKey=false shiftKey=false delta=0] [MouseEvent type="mouseMove" bubbles=true cancelable=false eventPhase=3 localX=7 localY=5 stageX=7 stageY=5 relatedObject=null ctrlKey=false altKey=false shiftKey=false delta=0] [MouseEvent type="mouseMove" bubbles=true cancelable=false eventPhase=3 localX=9 localY=5 stageX=9 stageY=5 relatedObject=null ctrlKey=false altKey=false shiftKey=false delta=0] [MouseEvent type="mouseMove" bubbles=true cancelable=false eventPhase=3 localX=10 localY=5 stageX=10 stageY=5 relatedObject=null ctrlKey=false altKey=false shiftKey=false delta=0] [MouseEvent type="mouseMove" bubbles=true cancelable=false eventPhase=3 localX=11 localY=5 stageX=11 stageY=5 relatedObject=null ctrlKey=false altKey=false shiftKey=false delta=0] [MouseEvent type="mouseMove" bubbles=true cancelable=false eventPhase=3 localX=12 localY=5 stageX=12 stageY=5 relatedObject=null ctrlKey=false altKey=false shiftKey=false delta=0] [MouseEvent type="mouseDown" bubbles=true cancelable=false eventPhase=3 localX=12 localY=5 stageX=12 stageY=5 relatedObject=null ctrlKey=false altKey=false shiftKey=false delta=0] [MouseEvent type="mouseUp" bubbles=true cancelable=false eventPhase=3 localX=12 localY=5 stageX=12 stageY=5 relatedObject=null ctrlKey=false altKey=false shiftKey=false delta=0] [MouseEvent type="click" bubbles=true cancelable=false eventPhase=3 localX=12 localY=5 stageX=12 stageY=5 relatedObject=null ctrlKey=false altKey=false shiftKey=false delta=0] [MouseEvent type="mouseMove" bubbles=true cancelable=false eventPhase=3 localX=10 localY=4 stageX=10 stageY=4 relatedObject=null ctrlKey=false altKey=false shiftKey=false delta=0] [MouseEvent type="mouseMove" bubbles=true cancelable=false eventPhase=3 localX=9 localY=2 stageX=9 stageY=2 relatedObject=null ctrlKey=false altKey=false shiftKey=false delta=0] [MouseEvent type="mouseMove" bubbles=true cancelable=false eventPhase=3 localX=9 localY=1 stageX=9 stageY=1 relatedObject=null ctrlKey=false altKey=false shiftKey=false delta=0] [MouseEvent type="mouseOut" bubbles=true cancelable=false eventPhase=3 localX=-1 localY=-1 stageX=-1 stageY=-1 relatedObject=null ctrlKey=false altKey=false shiftKey=false delta=0] [MouseEvent type="rollOut" bubbles=false cancelable=false eventPhase=2 localX=-1 localY=-1 stageX=-1 stageY=-1 relatedObject=null ctrlKey=false altKey=false shiftKey=false delta=0] As we can see, the events are being captured and replayed successfully. However, no change occurs in tf2 - the mouse cursor does not appear in tf2 as we would expect. In fact, the cursor remains in tf even after the tf2 events are dispatched. Please help! Thanks, -Rich

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  • Keeping the UI responsive while parsing a very large logfile

    - by Carlos
    I'm writing an app that parses a very large logfile, so that the user can see the contents in a treeview format. I've used a BackGroundWorker to read the file, and as it parses each message, I use a BeginInvoke to get the GUI thread to add a node to my treeview. Unfortunately, there's two issues: The treeview is unresponsive to clicks or scrolls while the file is being parsed. I would like users to be able to examine (ie expand) nodes while the file is parsing, so that they don't have to wait for the whole file to finish parsing. The treeview flickers each time a new node is added. Here's the code inside the form: private void btnChangeDir_Click(object sender, EventArgs e) { OpenFileDialog browser = new OpenFileDialog(); if (browser.ShowDialog() == DialogResult.OK) { tbSearchDir.Text = browser.FileName; BackgroundWorker bgw = new BackgroundWorker(); bgw.DoWork += (ob, evArgs) => ParseFile(tbSearchDir.Text); bgw.RunWorkerAsync(); } } private void ParseFile(string inputfile) { FileStream logFileStream = new FileStream(inputfile, FileMode.Open, FileAccess.Read, FileShare.ReadWrite); StreamReader LogsFile = new StreamReader(logFileStream); while (!LogsFile.EndOfStream) { string Msgtxt = LogsFile.ReadLine(); Message msg = new Message(Msgtxt.Substring(26)); //Reads the text into a class with appropriate members AddTreeViewNode(msg); } } private void AddTreeViewNode(Message msg) { TreeNode newNode = new TreeNode(msg.SeqNum); BeginInvoke(new Action(() => { treeView1.BeginUpdate(); treeView1.Nodes.Add(newNode); treeView1.EndUpdate(); Refresh(); } )); } What needs to be changed?

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  • Creating a System.Web.UI.Page programatically in IHTTPHandler

    - by ObiWanKenobi
    I am trying to use the ASP.NET (3.5) "Routing Module" functionality to create custom pages based on the contents of the URL. Various articles, such as this one: http://blogs.msdn.com/mikeormond/archive/2008/05/14/using-asp-net-routing-independent-of-mvc.aspx explain how to use ASP.NET Routing to branch to existing pages on the web server. What I would like to do is create the page on-the-fly using code. My first attempt looks like this: public class SimpleRouteHandler : IRouteHandler { public IHttpHandler GetHttpHandler(RequestContext requestContext) { string pageName = requestContext.RouteData.GetRequiredString("PageName"); Page myPage = new Page(); myPage.Response.Write("hello " + pageName); return myPage; } } But this throws an HTTPException saying "Response is not available in this context." at the Response.Write statement. Any ideas on how to proceed? UPDATE: In the end, I went with an approach based on IHttpModule, which turned out to be rather easy.

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  • Is it possible to have CommandManager requery only specific WPF command instead of all?

    - by aoven
    I'm trying to implement a highly responsive UI for my MVVM application, so I've chosen to have all command handlers automatically execute in a BackgroundWorker so they don't block the UI. But at the same time, I don't want the user to be able to execute the same command while it is still executing in the background. The solution seems obvious: When Executed handler is invoked, have the CanExecute handler return false Start the BackgroundWorker async When BackgroundWorker finishes, have the CanExecute handler return true again. Problem is, I need to notify WPF after step 1 and again after step 3 that CanExecute has changed and that it should be required. I know I can do it by calling CommandManager.InvalidateRequerySuggested, but that causes CanExecute handlers of all other commands to be requeried as well. Having a lot of commands, that's not good. Is there a way to ask for requery of a specific command - i.e. the one that is currently being executed? TIA

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  • Facebook XFBML Like Button incompatible with FeatureLoader script?

    - by retailevolved
    Facebook gurus, I have been implementing the Facebook Like button for a number of clients lately. To enable the Like Button, the following script has to be run: <div id="fb-root"></div> <script> window.fbAsyncInit = function() { FB.init({appId: '<?php echo Mage::helper("evlike")->getLikeConfig("ev_facebook_app_id") ?>', xfbml: true}); }; (function() { var e = document.createElement('script'); e.async = true; e.src = document.location.protocol + '//connect.facebook.net/en_US/all.js'; document.getElementById('fb-root').appendChild(e); }()); </script> It seems that this is incompatible with the following include: <script src="http://static.ak.connect.facebook.com/js/api_lib/v0.4/FeatureLoader.js.php/en_US" type="text/javascript"></script> It would make sense as I believe that the FeatureLoader performs an initialization. Is this official now? I would ask in official Facebook forums but I get an error every time I attempt to do so...

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  • Code working in jsFiddle but not in browser...

    - by Jascination
    I'm trying to run the following code, written on my local machine: http://www.jsfiddle.net/WShdx/3/ Functionality-wise (ignore the broken images in the previous and next buttons, and the wrongly-sized main images) the click/hover function is working properly in jsfiddle. However, on my local machine it's not working at all. For all intents and purposes the code is identical, except the local copy has this head section to load in the javascript/css files that are contained within the jsfiddle page: <head> <title>Jquery Wizard</title> <link href="style.css" rel="stylesheet" type="text/css" /> <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.4.4/jquery.min.js"></script> <script src="wizard.js" type="text/javascript" ></script> </head> Is there some wonderful function of jsFiddle that is making my code magically work, or am I missing something here?

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  • How invoke live method with arguments

    - by dorelal
    I am learning how to write jQuery plugin. So why I am doing what I am doing does not matter. I writing a plugin called live2 which does nothing else but internally calls live method. (function($) { $.fn.live2 = function() { /* if there are no elements then just return */ if (!this.length) return this; return this.each(function() { var $this = $(this); jQuery.fn.live.apply(this, arguments); }); // end of return this.each(function()) }; // end of plugin })(jQuery); Above code should be invoked just live any live method. Instead of live use live2. $('#container').live2('click',function(){ return false; }) But the plugin is not working. Any idea what the fix should be.

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  • How to feature-detect/test for specific jQuery (and Javascript) methods/functions used

    - by Zildjoms
    good day everyone, hope yer all doin awesome am very new to javascript and jquery, and i (think) i have come up with a simple fade-in/out implementation on a site am workin on (check out http://www.s5ent.com/expandjs.html - if you have the time to check it for inefficiency or what that'd be real sweet). i use the following functions/methods/collections and i would like to do a feature test before using them. uhm.. how? or is there a better way to go about this? jQuery $ .fadeIn([duration]) .fadeOut([duration]) .attr(attributeName,value) .append(content) .each(function(index,Element)) .css(propertyName,value) .hover(handlerIn(eventObject),handlerOut(eventObject)) .stop([clearQueue],[jumpToEnd]) .parent() .eq(index) JavaScript setInterval(expression,timeout) clearInterval(timeoutId) setTimeout(expression,timeout) clearTimeout(timeoutId) i tried looking into jquery.support for the jquery ones, but i find myself running into conceptual problems with it, i.e. for fadein/fadeout, i (think i) should test for $.support.opacity, but that would be false in ie whereas ie6+ could still fairly render the fades. also am using jquery 1.2.6 coz that's enough for what i need. the support object is in 1.3. so i'm hoping to avoid dragging-in more unnecessary code if i can. i also worked with browser sniffing, no matter how frowned-upon. but that's also a bigger problem for me because of non-standard ua strings and spoofing and everything else am not aware of. so how do you guys think i should go about this? or should i even? is there a better way to go about making sure that i don't run code that'll eventually break the page? i've set it up to degrade into a css hover when javascript ain't there.. expertise needed. much appreciated, thanks guyz!

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  • Displaying a DHTML layer over a Silverlight UI...

    - by Kevin Grossnicklaus
    I have a MOSS 2007 publishing site which incorporates some Silverlight components on various pages. Beyond a few areas the rest of the site is SharePoint and ASPX (i.e. standard HTML/javascript). I'm looking at incorporating a dynamic/dropdown menu to the main navigation. Unfortunately on a few of the pages the menu sits close to a Silverlight area and, when a menu is pulled down it falls "behind" the Silverlight block. Is there something simple I'm not doing or is there a limitation that Silverlight always be on top of dynamic content displayed via the rest of the HTML DOM? Any ideas? -Kevin

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  • Android: How to make current layout with scrollable text view?

    - by Solata
    I tried multiple solution but none seem to work. Layout: -------------------- |btn1| txt1 |btn2| -------------------- | | | | | | | txtview1 | | | | | | | -------------------- btn1 - top left aligned - decrease txt1 btn2 - top right aligned - increase txt1 txt1 - top center aligned - text/number entered with code textview1 - client aligned with vertical scrollbar, if needed - text entered with code

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  • Addressing a memory leak stops my UI from showing iphone

    - by dubbeat
    Hi I've being getting a memory leak warning with a UITabbarcontroller. If I release the tabbarcontroller the warning goes away but the tabbar will not show any content. If I debug the app with the warning still in it the app runs but will crash after a couple of minutes UITabBarController *tabBarController = [[UITabBarController alloc] init]; tabBarController.view.frame = CGRectMake(0, 0, 320, 460); tabBarController.viewControllers=localControllersArray; // Clean up objects we don't need anymore [promoTabOptionHome release]; [promoTabOptionInfo release]; [promoTabOptionEvents release]; [promoTabOptionBuy release]; [localControllersArray release]; // Finally, add the tab controller view to the parent view [self.view addSubview:tabBarController.view]; //[tabBarController release]; commenting out this line removes the warning but results in no content being shown

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  • MS Access 2003 - Save button enabling on form open on different tabs

    - by Justin
    I have a tab control on a form, and a couple different tabs have save buttons on them. Once the user saves data (via SQL statements in VBA), I set the .enabled = false so that they cannot use this button again until moving to a brand new record (which is a button click on the overall form). so when my form open i was going to reference a sub that enabled all these save buttons because the open event would mean new record. though i get an error that says it either does not exist, or is closed. any ideas? thanks EDIT: Sub Example() error handling Dim db as dao.database dim rs as dao.recordset dim sql as string SQL = "INSERT INTO tblMain (Name, Address, CITY) VALUES (" if not isnull (me.name) then sql = sql & """" & me.name & """," else sql = sql & " NULL," end if if not insull(me.adress) then sql = sql & " """ & me.address & """," else sql = sql & " NULL," end if if not isnull(me.city) then sql = sql & " """ & me.city & """," else sql = sql & " NULL," end if 'debug.print(sql) set db = currentdb db.execute (sql) MsgBox "Changes were successfully saved" me.MyTabCtl.Pages.Item("SecondPage").setfocus me.cmdSaveInfo.enabled = false and then on then the cmdSave needs to get re enabled on a new record (which by the way, this form is unbound), so it all happens when the form is re-opened. I tried this: Sub Form_Open() me.cmdSaveInfo.enabled = true End Sub and this is where I get the error stated above. So this is also not the tab that has focus when the form opens. Is that why I get this error? I cannot enable or disable a control when the tab is not showing?

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  • Snap to Grid UI in Cappuccino

    - by Grnbeagle
    Does anyone know how to do snap-to-grid in Cappuccino? Basically, I have draggable objects which I can drag into a target area. The target view needs to be set up with snap-to-grid feature. I've seen it with Mockingbird, so it's definitely possible. Any info is appreciated. Thanks!

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  • Button in a WPF ListItem

    - by Joel Martinez
    Hi, I'm a bit new to WPF. I am working on a list UI where each item in the list will have a set of corresponding buttons to operate on that particular data item. Coming from a web background, I normally would have bound the value into a hidden element in that particular list item or something. However, I just need to find the corresponding technique in this WPF world :-)

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  • Voting UI for showing like/dislike community comments side-by-side

    - by Justin Grant
    We want to add a comments/reviews feature to our website's plugin gallery, so users can vote up/down a particular plugin and leave an optional short comment about what they liked or didn't like about it. I'm looking for inspiration, ideally a good implementation elsewhere on the web which isn't annoying to end users, isn't impossibly complex to develop, and which enables users to see both good and bad comments side-by-side, like this: Like: 57 votes Dislike: 8 votes --------------------------------- -------------------------------- "great plugin, saved me hours..." "hard to install" "works well on MacOS and Ubuntu" "Broken on Windows Vista with UAC enabled" "integrates well with version 3.2" More... More... Anyone know a site which does something like this?

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  • setting target for disclosure button on subclassed UITableViewCell

    - by Toby Wilson
    I've created a subclass of UITableViewCell to create some custom appearance and UI functionality ('swipe to reveal delete button'). Some of the cells are disclosure/detail disclosure type, and have a UIButtonTypeDetailDisclosure etc added manually. I cannot use the table view controllers' UITableViewCellAccessory for row at index path method. The question is, how do I set the target of these manually added buttons so that they correctly send the didSelectRowAtIndexPath to their table view controller?

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  • Reference for good Android UI design patterns.

    - by sat
    Hi, I would like to get some links for getting started with design patterns.My requirement is , (at Initial stage) How to go about developing a particular pattern , say customized ListView which can be shared across applications . e.g. Applications will call something like drawCustomizedListView(params...) and my code will draw the listview according to the parameters supplied. This is particularly useful when across the applications I have to draw customized views. My intention is, I should not repeat the same code everywhere for doing similar task. Any references for the above requirement ?

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  • jqueryForm and empty uploads

    - by Aiden Bell
    Hi All, Been scratching my head for too long on this: Using jquery.form, (http://malsup.com/jquery/form) with PHP ... my $_FILES['someimage'] gets set but the error number is always UPLOAD_ERR_NO_FILE, size is also 0. The JavaScript: $('form input[type=file]').change(function(){ $(this).clone().appendTo('#imgform'); $('#imgform').ajaxForm(); $('#imgform').ajaxSubmit( { type:'POST' } ); }); Which appends to: <form id="imgform" method="POST" action="/api/images.php" enctype="multipart/form-data"></form> From another form which has bog-standard file inputs. PHP logs are clean, but var_dumping $_FILES always shows that the index is set to the name of the form element ... but no data. Thanks guys! (Sorry, I know jQuery-like questions are too frequent round these parts).

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  • Custom Classes Passed from Service to a UI threads via AIDL

    - by Honza Pokorny
    I have a service that regularly queries a web server for new messages. The service stores the new messages in an arrayList. These messages are implemented using a custom class, storing all kinds of metadata (strings and longs). An activity then connects to this service to retrieve those messages and display them to the user. I have an .aidl file that describes the interface that the service exposes. package com.example.package; interface MyInterface { List<Message> getMessages(); } The Message class extends the Parcelable class which should allow for the IPC transfer. The problem is this: Eclipse gives me an error saying that the type of List<Message> is unknown. Any imports are marked as invalid. Ideas? Thanks

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  • Subscribe to the Button's events into a custom control

    - by ThitoO
    Do you know how can I subscribe to an event of the base of my customControl ? I've a custom control with some dependency properties : public class MyCustomControl : Button { static MyCustomControl () { DefaultStyleKeyProperty.OverrideMetadata( typeof( MyCustomControl ), new FrameworkPropertyMetadata( typeof( MyCustomControl ) ) ); } public ICommand KeyDownCommand { get { return (ICommand)GetValue( KeyDownCommandProperty ); } set { SetValue( KeyDownCommandProperty, value ); } } public static readonly DependencyProperty KeyDownCommandProperty = DependencyProperty.Register( "KeyDownCommand", typeof( ICommand ), typeof( MyCustomControl ) ); public ICommand KeyUpCommand { get { return (ICommand)GetValue( KeyUpCommandProperty ); } set { SetValue( KeyUpCommandProperty, value ); } } public static readonly DependencyProperty KeyUpCommandProperty = DependencyProperty.Register( "KeyUpCommand", typeof( ICommand ), typeof( MyCustomControl ) ); public ICommand KeyPressedCommand { get { return (ICommand)GetValue( KeyPressedCommandProperty ); } set { SetValue( KeyPressedCommandProperty, value ); } } public static readonly DependencyProperty KeyPressedCommandProperty = DependencyProperty.Register( "KeyPressedCommand", typeof( ICommand ), typeof( MyCustomControl ) ); } And I whant to subscribe to Button's events (like MouseLeftButtonDown) to run some code in my customControl. Do you know how can I do something like this in the constructor ? static MyCustomControl() { DefaultStyleKeyProperty.OverrideMetadata( typeof( MyCustomControl ), new FrameworkPropertyMetadata( typeof( MyCustomControl ) ) ); MouseLeftButtonDownEvent += (object sender, MouseButtonEventArgs e) => "something"; } Thanks for you help

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