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  • Does visibility affect DOM manipulation performance?

    - by Chetan Sastry
    IE7/Windows XP I have a third party component in my page that does a lot of DOM manipulation to adjust itself each time the browser window is resized. Unfortunately I have little control of what it does internally and I have optimized everything else (such as callbacks and event handlers) as much as I can. I can't take the component off the flow by setting display:none because it fails measuring itself if I do so. In general, does setting visibility of the container to invisible during the resize help improve DOM rendering performance?

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  • Flex remoting and progress events?

    - by Cambiata
    Is there a way to monitor the loading progress (percent progress bar style) when using Flex remoting? I'm trying out Flash Builder 4 with it's new data services features, but I can't find any pgrogress event stuff somewhere. This article by Robert Taylor http://www.roboncode.com/articles/144 indicates that it might not be possible...

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  • Catching a python app before it exits

    - by Leopd
    I have a python app which is supposed to be very long-lived, but sometimes the process just disappears and I don't know why. Nothing gets logged when this happens, so I'm at a bit of a loss. Is there some way in code I can hook in to an exit event, or some other way to get some of my code to run just before the process quits? I'd like to log the state of memory structures to better understand what's going on.

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  • Iphone App crashing on launch

    - by Declan Scott
    Hey, My simple iphone app is crashing on launch, it says "the application downloadText quit unexcpectedly i none of these windows that pop up when a mac app crashes and has a send to Apple button. My .h is below and i would greatly appreciate it if anyone could give me a hand as to what's wrong? thanks, Declan `#import "downloadTextViewController.h" @implementation downloadTextViewController // Implement viewDidLoad to do additional setup after loading the view, typically from a nib. - (void)viewDidLoad { NSString *myPath = [self saveFilePath]; NSLog(myPath); BOOL fileExists = [[NSFileManager defaultManager] fileExistsAtPath:myPath]; if (fileExists) { NSArray *values = [[NSArray alloc] initWithContentsOfFile:myPath]; textView.text = [values objectAtIndex:0]; [values release]; } // notification UIApplication *myApp = [UIApplication sharedApplication]; // add yourself to the dispatch table [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(applicationWillTerminate:) name:UIApplicationWillTerminateNotification object:myApp]; [super viewDidLoad]; } (IBAction)fetchData { /// Show activityIndicator / progressView NSURLRequest *downloadRequest = [NSURLRequest requestWithURL:[NSURL URLWithString:@"http://simpsonatyapps.com/exampletext.txt"] cachePolicy:NSURLRequestReloadIgnoringCacheData timeoutInterval:1.0]; NSURLConnection *downloadConnection = [[NSURLConnection alloc] initWithRequest:downloadRequest delegate:self]; if (downloadConnection) downloadedData = [[NSMutableData data] retain]; else { /// Error message } } (void)connection:(NSURLConnection *)downloadConnection didReceiveData:(NSData *)data { [downloadedData appendData:data]; NSString *file = [[NSString alloc] initWithData:downloadedData encoding:NSUTF8StringEncoding]; textView.text = file; /// Remove activityIndicator / progressView [[UIApplication sharedApplication] setApplicationIconBadgeNumber:1]; } (NSString *) saveFilePath { NSArray *pathArray = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); return [[pathArray objectAtIndex:0] stringByAppendingPathComponent:@"savedddata.plist"]; } (void)applicationWillTerminate:(UIApplication *)application { NSArray *values = [[NSArray alloc] initWithObjects:textView.text,nil]; [values writeToFile:[self saveFilePath] atomically:YES]; [values release]; } (void)didReceiveMemoryWarning { // Releases the view if it doesn't have a superview. [super didReceiveMemoryWarning]; // Release any cached data, images, etc that aren't in use. } (void)viewDidUnload { // Release any retained subviews of the main view. // e.g. self.myOutlet = nil; } (void)dealloc { [super dealloc]; } (NSCachedURLResponse *)connection:(NSURLConnection *)connection willCacheResponse:(NSCachedURLResponse *)cachedResponse { return nil; } @end `

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  • Catch All (handled or unhandled) Exceptions

    - by andySF
    Hi, I want to catch all exceptions raised (handled or unhandled) to log them. for unhandled i use ThreadExceptionEventHandler and UnhandledExceptionEventHandler but i want to catch and exceptions that are in try catch block with or without (Exception e). It's possible to inherit the exceptions class to create a general event?

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  • Detecting double tap in UIScrollView

    - by william-hu
    Hi, i searched much, the main way is subclass, override -(void) touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event { } but i use NSL(@"") in this method to display the times ,but can't work ,who can give me a way to detect double click in detail.thank you so much!

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  • Rails Delayed Job & Library Class

    - by Lee
    Hey we have a library class (lib/Mixpanel) that calls delayed job as follows: class Mixpanel attr_accessor :options attr_accessor :event def track!() .. dj = send_later :access_api # also tried with self.send_later .. end def access_api .. end The problem is that when we run rake jobs:work: we get the following error: undefined method `access_api' for # Any idea why?

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  • Loop through multi-dimensional array and remove certain keys

    - by Webkungen
    Hi! I've got a nested tree structure which is based on the array below: Array ( [1] = Array ( [id] = 1 [parent] = 0 [name] = Startpage [uri] = 125 [basename] = index.php [child] = ) [23] = Array ( [id] = 23 [parent] = 0 [name] = Events [uri] = 0 [basename] = [child] = Array ( [24] = Array ( [id] = 24 [parent] = 23 [name] = Public news [uri] = 0 [basename] = [child] = Array ( [27] = Array ( [id] = 27 [parent] = 24 [name] = Add [uri] = 100 [basename] = news.public.add.php [child] = ) [28] = Array ( [id] = 28 [parent] = 24 [name] = Overview [uri] = 101 [basename] = news.public.overview.php [child] = ) ) ) [25] = Array ( [id] = 25 [parent] = 23 [name] = Private news [uri] = 0 [basename] = [child] = Array ( [29] = Array ( [id] = 29 [parent] = 25 [name] = Add [uri] = 67 [basename] = news.private.add.php [child] = ) [30] = Array ( [id] = 30 [parent] = 25 [name] = Overview [uri] = 68 [basename] = news.private.overview.php [child] = ) ) ) [26] = Array ( [id] = 26 [parent] = 23 [name] = Calendar [uri] = 0 [basename] = [child] = Array ( [31] = Array ( [id] = 31 [parent] = 26 [name] = Add [uri] = 69 [basename] = news.event.add.php [child] = ) [32] = Array ( [id] = 32 [parent] = 26 [name] = Overview [uri] = 70 [basename] = news.event.overview.php [child] = ) ) ) ) ) ) I'm looking for a function to loop (recursive?) through the array and remove some keys. I my system I can allow users to certain functions/pages and if I deny access to the whole "block" "Events", the array will look like this: Array ( [1] = Array ( [id] = 1 [parent] = 0 [name] = Startpage [uri] = 125 [basename] = index.php [child] = ) [23] = Array ( [id] = 23 [parent] = 0 [name] = Events [uri] = 0 [basename] = [child] = Array ( [24] = Array ( [id] = 24 [parent] = 23 [name] = Public news [uri] = 0 [basename] = [child] = ) [25] = Array ( [id] = 25 [parent] = 23 [name] = Private news [uri] = 0 [basename] = [child] = ) [26] = Array ( [id] = 26 [parent] = 23 [name] = Calendar [uri] = 0 [basename] = [child] = ) ) ) ) As you can see above, the whole "block" "Events" is useless right now, becuase there is no page associated with each option. So I need to find all "keys" where "basename" is null AND where child is not an array or where the array is empty and remove them. I found this function when searching the site: function searchAndDestroy(&$a, $key, $val){ foreach($a as $k = &$v){ if(is_array($v)){ $r = searchAndDestroy($v, $key, $val); if($r){ unset($a[$k]); } }elseif($key == $k && $val == $v){ return true; } } return false; } It can be used to remove a key any where in the array, but only based in one thing, for example remove all keys where "parent" equals "23". But I need to find and remove (unset) all keys where "basename" is null AND where child isn't an array or where the array is empty. Can anyone help me out and possibly tweak the function above? Thank you,

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  • MouseMove sensibility

    - by serhio
    I use MouseMove event to move objects(say labels). simple principle(schematic): OnMouseMove(e MouseEventArgs) deltaX = e.X - lastX foreach label in labels label.Location.X += deltaX lastX = e.X Now, when I have one label there is no problem. Once the labels number increase, I start to see the labels traces along the moving trajectory. Is there a way to prevent this kind of traces? tried label.Visible = false label.Location.X += deltaX label.Visible = true does not help.

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  • WPF Open Combobox popup on Focus or GotFocus

    - by ashish.magroria
    Hi, I am trying to open the combobox popup when it is focused using Style/Event Trigger I used the following code in my Combobox control Template: <ControlTemplate x:Key="ComboBoxTemplate" TargetType="{x:Type ComboBox}"> <Grid > <ToggleButton Grid.Column="2" Template="{DynamicResource ComboBoxToggleButton}" x:Name="ToggleButton" Focusable="false" IsChecked="{Binding Path=IsDropDownOpen, Mode=TwoWay, RelativeSource={RelativeSource TemplatedParent}}" ClickMode="Press"/> <ContentPresenter HorizontalAlignment="Left" Margin="3,3,23,3" x:Name="ContentSite" VerticalAlignment="Center" Content="{TemplateBinding SelectionBoxItem}" ContentTemplate="{TemplateBinding SelectionBoxItemTemplate}" ContentTemplateSelector="{TemplateBinding ItemTemplateSelector}" IsHitTestVisible="False"/> <TextBox Visibility="Hidden" Template="{DynamicResource ComboBoxTextBox}" HorizontalAlignment="Left" Margin="3,3,23,3" x:Name="PART_EditableTextBox" Style="{x:Null}" VerticalAlignment="Center" Focusable="True" Background="Transparent" IsReadOnly="{TemplateBinding IsReadOnly}"/> <Popup IsOpen="{TemplateBinding IsDropDownOpen}" Placement="Bottom" x:Name="Popup" Focusable="False" AllowsTransparency="True" PopupAnimation="Slide"> <Grid MaxHeight="{TemplateBinding MaxDropDownHeight}" MinWidth="{TemplateBinding ActualWidth}" x:Name="DropDown" SnapsToDevicePixels="True"> <Border x:Name="DropDownBorder" Background="{DynamicResource ShadeBrush}" BorderBrush="{DynamicResource SolidBorderBrush}" BorderThickness="1"/> <ScrollViewer Margin="4,6,4,6" SnapsToDevicePixels="True" HorizontalScrollBarVisibility="Auto" VerticalScrollBarVisibility="Auto" CanContentScroll="True"> <StackPanel IsItemsHost="True" KeyboardNavigation.DirectionalNavigation="Contained"/> </ScrollViewer> </Grid> </Popup> </Grid> <ControlTemplate.Triggers> **<Trigger Property="IsMouseOver" Value="True"> <Setter Property="IsOpen" Value="True" TargetName="Popup"/> </Trigger>** </ControlTemplate.Triggers> </ControlTemplate> But nothing happens with this code. So I trid the following Event trigger in ControlTemplate.Triggers <EventTrigger RoutedEvent="UIElement.GotFocus"> <BeginStoryboard> <Storyboard > <BooleanAnimationUsingKeyFrames Storyboard.TargetName="Popup" Storyboard.TargetProperty="IsOpen" FillBehavior="HoldEnd"> <DiscreteBooleanKeyFrame KeyTime="00:00:00" Value="True" /> </BooleanAnimationUsingKeyFrames> </Storyboard> </BeginStoryboard> </EventTrigger> <EventTrigger RoutedEvent="UIElement.LostFocus"> <BeginStoryboard> <Storyboard > <BooleanAnimationUsingKeyFrames Storyboard.TargetName="Popup" Storyboard.TargetProperty="IsOpen" FillBehavior="HoldEnd"> <DiscreteBooleanKeyFrame KeyTime="00:00:00" Value="False" /> </BooleanAnimationUsingKeyFrames> </Storyboard> </BeginStoryboard> </EventTrigger> Now this helps open the popup on focus, but when I select any item from dropdown the pop up doesnt disappear as usual; it stays open. it closes only after I click somewhere else in the window. Can someone please suggest the proper way to do this Thanks in advance

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  • Handling autopost back in MVC

    - by Shetty
    hi, How do i handle autopoatback in MVC? suppose i have a textbax. I enter a value in it, i need to check if the value exists in some table in the database. So in ASP .net i can set autopostback =true and handle on TextBox_TextChanged event. How do i do it here?? And what are the pros and cons of using asp.NET server control in MVC?

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  • DataGrid - launch JS function on ItemDataBound

    - by Faruz
    Is there any way to launch a JS function after a dataGrid launches its ItemDataBound event? I've tried adding a JS block to the ItemDataBound function like: protected void itemDataBound (e sender, arguments args) { ClientScript.RegisterStartupScript(typeof(string),"test","alert('testing');",true); } but it did nothing. Am I missing something?

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  • What is the best way to bind PhoneGap events (like backbutton) to views in ember.js

    - by Fedor
    I'm playing with PhoneGap and emberjs (trying to build "proof of concept" mobile/HTML5 application based on ember.js). Ember.js itself works fine, but I haven't found any good way to "bind" PhoneGap events to views. For instance, I would like to handle backbutton event and remove a view on it. It would be nice to define behavior in view class and call document.addEventListener when instance of the view is appended and call document.removeEventListener when view instance removed.

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  • How to add action related to a business object in Metawidget?

    - by Gulcan
    I use Netbeans 6.8 and try to obtain user interface by using metawidget and JPA. I cannot say @Action public void save( ActionEvent event ) { mSearchMetawidget.save(); } This annotation gives "incompatible types" error when I add following import. import org.metawidget.inspector.impl.actionstyle.Action; What to do? How can I add an action related to my User entity. I want to do "register" action. Thanks in advance

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  • jQuery: How can I check if a block in my document is inside the viewport or outside of it?

    - by Jannis
    I am basically trying to trigger a function if the footer is inside the viewport. How can I check whether the footer is currently visible in the viewport? I assume I will have to put it into the $(window).scroll() event so that the listener becomes true once the footer becomes visible but what the function should be I just can't figure out. Any help would be much appreciated. Thanks for reading, Jannis

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  • How to hide jquery ui slider on blur?

    - by Leon
    I have an image that opens ui slider div on click and allows users to set value by draging handle. What Im trying to do now is hide that handle when user click anywhere else on the page but regular .blur event doesn't seem to work. $("#openPriceToSliderGif").click(function(){ $("#slider-vertical").show(); $("#slider-vertical").focus(); }); $("#slider-vertical").blur(function () { $("#slider-vertical").hide(); });

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  • JavaScript: Doing some stuff right before the user exits the page

    - by Mike
    I have seen some questions here regarding what I want to achieve and have based what I have so far on those answer. But there is a slight misbehavior that is still irritating me. What I have is sort of a recovery feature. Whenever you are typing text, the client sends a sync request to the server every 45 seconds. It does 2 things. First, it extends the lease the client has on the record (only one person may edit at one time) for another 60 seconds. Second, it sends the text typed so far to the server in case the server crashes, internet connection fails, etc. In that case, the next time the user enters our application, the user is notified that something has gone wrong and that some text was recovered. Think of Microsoft or OpenOffice recovery whenever they crash! Of course, if the user leaves the page willingly, the user does not need to be notified and as a result, the recovery is deleted. I do that final request via a beforeunload event. Everything went fine until I was asked to make a final adjustment... The same behavior you have here at stack overflow when you exit the editor... a confirm dialogue. This works so far, BUT, the confirm dialogue is shown twice. Here is the code. The event if (local.sync.autosave_textelement) { window.onbeforeunload = exitConfirm; } The function function exitConfirm() { var local = Core; if (confirm('blub?')) { local.sync.autosave_destroy = true; sync(false); return true; } else { return false; } }; Some problem irrelevant clarifications: Core is a global Object that contains a lot of variables that are used everywhere. sync makes an ajax request. The values are based on the values that the Core.sync object contains. The parameter determines if the call should be async (default) or sync.

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  • ChangePassword control without provider

    - by EugeneK
    Hello, Is there a way to make ChangePassword control work without Membership provider? Like the same way Login control works through an Authenticate event, could I make this component to use my password changing function and then showing success view without me writing custom provider? Thanks, Eugene.

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  • error working with wsdl files in visual studio 2008

    - by deostroll
    Hi. I got a wsdl file in email. At first I didn't know how to use it. I've simply saved the file to my disk. Opened visual studio...added a service reference...provided path to file, and service was discovered. I opened the object browser to see the types and methods that got imported. I figure anything that ends with the name 'Client' is a good place to start using the web service. I've tried using a simple method to get data but it has run into and expception. Need help in resolving it. System.InvalidOperationException was unhandled Message="The XML element 'ListsRequest' from namespace 'http://www.asd.org/MGMMIRAGE.MDM.WS/Customer' references a method and a type. Change the method's message name using WebMethodAttribute or change the type's root element using the XmlRootAttribute." Source="System.Xml" StackTrace: at System.Xml.Serialization.XmlReflectionImporter.ReconcileAccessor(Accessor accessor, NameTable accessors) at System.Xml.Serialization.XmlReflectionImporter.ImportMembersMapping(String elementName, String ns, XmlReflectionMember[] members, Boolean hasWrapperElement, Boolean rpc, Boolean openModel, XmlMappingAccess access) at System.Xml.Serialization.XmlReflectionImporter.ImportMembersMapping(String elementName, String ns, XmlReflectionMember[] members, Boolean hasWrapperElement, Boolean rpc, Boolean openModel) at System.Xml.Serialization.XmlReflectionImporter.ImportMembersMapping(String elementName, String ns, XmlReflectionMember[] members, Boolean hasWrapperElement, Boolean rpc) at System.ServiceModel.Description.XmlSerializerOperationBehavior.Reflector.XmlSerializerImporter.ImportMembersMapping(XmlName elementName, String ns, XmlReflectionMember[] members, Boolean hasWrapperElement, Boolean rpc, Boolean isEncoded, String mappingKey) at System.ServiceModel.Description.XmlSerializerOperationBehavior.Reflector.OperationReflector.ImportMembersMapping(String elementName, String ns, XmlReflectionMember[] members, Boolean hasWrapperElement, Boolean rpc, String mappingKey) at System.ServiceModel.Description.XmlSerializerOperationBehavior.Reflector.OperationReflector.LoadBodyMapping(MessageDescription message, String mappingKey, MessagePartDescriptionCollection& rpcEncodedTypedMessageBodyParts) at System.ServiceModel.Description.XmlSerializerOperationBehavior.Reflector.OperationReflector.CreateMessageInfo(MessageDescription message, String key) at System.ServiceModel.Description.XmlSerializerOperationBehavior.Reflector.OperationReflector.EnsureMessageInfos() at System.ServiceModel.Description.XmlSerializerOperationBehavior.Reflector.EnsureMessageInfos() at System.ServiceModel.Description.XmlSerializerOperationBehavior.Reflector.OperationReflector.get_Request() at System.ServiceModel.Description.XmlSerializerOperationBehavior.CreateFormatter() at System.ServiceModel.Description.XmlSerializerOperationBehavior.System.ServiceModel.Description.IOperationBehavior.ApplyClientBehavior(OperationDescription description, ClientOperation proxy) at System.ServiceModel.Description.DispatcherBuilder.BindOperations(ContractDescription contract, ClientRuntime proxy, DispatchRuntime dispatch) at System.ServiceModel.Description.DispatcherBuilder.ApplyClientBehavior(ServiceEndpoint serviceEndpoint, ClientRuntime clientRuntime) at System.ServiceModel.Description.DispatcherBuilder.BuildProxyBehavior(ServiceEndpoint serviceEndpoint, BindingParameterCollection& parameters) at System.ServiceModel.Channels.ServiceChannelFactory.BuildChannelFactory(ServiceEndpoint serviceEndpoint) at System.ServiceModel.ChannelFactory.CreateFactory() at System.ServiceModel.ChannelFactory.OnOpening() at System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout) at System.ServiceModel.ChannelFactory.EnsureOpened() at System.ServiceModel.ChannelFactory`1.CreateChannel(EndpointAddress address, Uri via) at System.ServiceModel.ChannelFactory`1.CreateChannel() at System.ServiceModel.ClientBase`1.CreateChannel() at System.ServiceModel.ClientBase`1.CreateChannelInternal() at System.ServiceModel.ClientBase`1.get_Channel() at MDMWSDemo.MDMWebSrvc.MGMCustomerSoapPortTypeClient.MDMWSDemo.MDMWebSrvc.MGMCustomerSoapPortType.CountryCodeGet(CountryCodeGetRequest request) in C:\Documents and Settings\tbhagava01\My Documents\Visual Studio 2008\Projects\MDMWSDemo\MDMWSDemo\Service References\MDMWebSrvc\Reference.cs:line 2983 at MDMWSDemo.MDMWebSrvc.MGMCustomerSoapPortTypeClient.CountryCodeGet(String countryCode) in C:\Documents and Settings\tbhagava01\My Documents\Visual Studio 2008\Projects\MDMWSDemo\MDMWSDemo\Service References\MDMWebSrvc\Reference.cs:line 2989 at MDMWSDemo.Program.Main(String[] args) in C:\Documents and Settings\tbhagava01\My Documents\Visual Studio 2008\Projects\MDMWSDemo\MDMWSDemo\Program.cs:line 15 at System.AppDomain._nExecuteAssembly(Assembly assembly, String[] args) at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args) at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly() at System.Threading.ThreadHelper.ThreadStart_Context(Object state) at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state) at System.Threading.ThreadHelper.ThreadStart() InnerException:

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  • long polling netty nio framework java

    - by Alfred
    Hi, How can I do long-polling using netty framework? Say for example I fetch http://localhost/waitforx but waitforx is asynchronous because it has to wait for an event? Say for example it fetches something from a blocking queue(can only fetch when data in queue). When getting item from queue I would like to sent data back to client. Hopefully somebody can give me some tips how to do this. Many thanks

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  • Google Maps v3 - Adding makers results in duplicate markers

    - by Richard
    Hi guys, I'm having some problems with Google Maps v3. I have an event listener on "bounds_change" that adds all accommodations(markers) within the active bounds. When i move the map slightly, the same markers are added again because they are located in the bounds. So every time I move the map, duplicate markers are added. How can I make sure these markers stay unique? Thanks!! Richard

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