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  • Clear Session in ASP.Net

    - by Jignesh
    I want to clear the session on Page unload. Here is a condition : If user goes from Page A to Page B of the same site session must not get cleared. If user close the browser window or Tab(close the site),session must gets cleared. I have tried using AJAX PageMethod to call server-side procedure to remove session from client side script.But the procedure is not getting hit,I have checked it using Breakpoint. server side procedure is in master.cs file I will appreciate your help. Here is code in site.master <body onunload="HandleClose();"> <script type="text/javascript"> function HandleClose() { PageMethods.AbandonSessions(); } and here is a code in master.cs : [System.Web.Services.WebMethod] public static void AbandonSessions() { HttpContext.Current.Session.Abandon(); }

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  • Packing a file into an ELF executable

    - by Pierre Bourdon
    Hello, I'm currently looking for a way to add data to an already compiled ELF executable, i.e. embedding a file into the executable without recompiling it. I could easily do that by using cat myexe mydata > myexe_with_mydata, but I couldn't access the data from the executable because I don't know the size of the original executable. Does anyone have an idea of how I could implement this ? I thought of adding a section to the executable or using a special marker (0xBADBEEFC0FFEE for example) to detect the beginning of the data in the executable, but I do not know if there is a more beautiful way to do it. Thanks in advance.

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  • Shark tool on iphone crashes

    - by Joey
    Hi, I am trying to use Shark to profile my app. However, it crashes after I hit "stop" and it analyzes and then goes to "load session". Only once when I decided not to select my app but chose to target "everything" did it actually display some trace. However, I could not reproduce this case. Does anyone have any idea what might be going wrong? Could it be something to do with the wrong version of Shark or my SDK or some other detail? I have the latest SDK and am running 3.1.3 on the phone. The various documentation I've found on google or via Apple's docs don't seem to be terribly helpful, so if anyone has found some that's useful, I'd love to see it. Thanks.

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  • ANTLR, optional ';' in JavaScript

    - by vava
    I'm just playing with ANTLR and decided to try parsing JavaScript with it. But I hit the wall in dealing with optional ';' in it, where statement end is marked by newline instead. Can it be done in some straightforward way? Just a simple grammar example that doesn't work grammar optional_newline; def : statements ; statements : statement (statement)* ; statement : expression (';' | '\n') ; expression : ID | INT | 'var' ID '=' INT ; ID : ('a'..'z'|'A'..'Z'|'_') ('a'..'z'|'A'..'Z'|'0'..'9'|'_')* ; INT : '0'..'9'+ ; WS : ( ' ' | '\t' | '\r' | '\n') {$channel=HIDDEN;} ; and I want to be able to parse this (which can be parsed by JavaScript parsers) var i = 10 10; PS: I don't want to put WS in parser rules, I would be much happier if lexer just get rid of those.

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  • WYSIWYG iframe editor and oninput event.

    - by teehoo
    I'm writing a simple WYSIWYG editor in an iframe, but having trouble registering the "oninput" event to detect when the user modifies the text field such as pasting in data etc. var txtArea = document.getElementById('txtArea'); txtArea.contentWindow.document.designMode="on"; txtArea.contentWindow.document.open(); txtArea.contentWindow.document.write("<head><style type='text/css'>body{font-size:13px;}</style></head><body>"+data.document+"</body>"); txtArea.contentWindow.document.close(); $([txtArea.contentWindow.document]).bind("click", updateCaretPosMouse); //fires $([txtArea.contentWindow.document]).bind("keyup", updateCaretPosKeyboard); //fires $([txtArea.contentWindow.document]).bind("input", textChanged); //doesn't fire If I create a plain old element, and add the "input" event to this, then it works. Do 'input" events not work with iframes WYSIWYG editors?

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  • Can a grails controller extend from a base class? How to make it so grails doesn't blow up?

    - by egervari
    I wrote a base class to help build my controllers more quickly and to remove duplication. It provides some helper methods, default actions and some meta programming to make these things easier to build. One of those methods in the base class is like this: def dynamicList(Class clazz) { def model = new LinkedHashMap() model[getMapString(clazz) + "s"] = list(clazz) model[getMapString(clazz) + "sTotal"] = count(clazz) model } The action that calls it, also in the base class, is this: def list = { dynamicList(clazz) } Unfortunately, when I go to list action in the controller subclass that inherits the base class when my application is deployed, I get this exception: groovy.lang.MissingMethodException: No signature of method: groovy.lang.MissingMethodException.dynamicList() is applicable for argument types: (java.lang.Class) values: [class project .user.User] at project.user.UserController$_closure1.doCall(UserController.groovy:18) at project.user.UserController$_closure1.doCall(UserController.groovy) at java.lang.Thread.run(Thread.java:619) How can I hit grails over the head and just tell it do what I want it to do? My controller unit tests run just fine, so grails' run-time is totally at fault :/ Ken

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  • Cannot Debug Unmanaged Dll from C#

    - by JustSmith
    I have a DLL that was written in C++ and called from a C# application. The DLL is unmanaged code. If I copy the DLL and its .pdb files with a post build event to the C# app's debug execution dir I still can't hit any break points I put into the DLL code. The break point has a message attached to it saying that "no symbols have been loaded for this document". What else do I have to do to get the debugging in the dll source? I have "Tools-Options-Debugging-General-Enable only my code" Disabled. The DLL is being compiled with "Runtime tracking and disable optimizations (/ASSEMBLYDEBUG)" and Generate Debug Info to "Yes (/DEBUG)"

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  • Why won't my anonymous function fire on grid.prerender?

    - by adam0101
    In my gridview I have fields for inserting a new record in the footer. In my objectdatasource selecting event if no records came back I bind a single mock row to force the footer to show so they can still add records. Since the row does not contain real data I hide the row. ... If result.ItemCount = 0 Then result = mockRow AddHandler mygridview.PreRender, AddressOf HideRow End If End Sub Private Sub HideRow(ByVal sender as Object, ByVal e as EventArgs) mygridview.Rows(0).Visible = False End Sub This works fine. However, I'd like to condense it like this: ... If result.ItemCount = 0 Then result = mockRow AddHandler mygridview.PreRender, Function() mygridview.Rows(0).Visible = False End If End Sub This compiles fine, but the row doesn't get hidden. Can anyone tell me why my anonymous function isn't getting hit?

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  • How to prevent a modal UIImagePickerController from rotating?

    - by coneybeare
    I have an app that fully support rotation. I am modally adding a UIImagePickerController for which there is no support for UIInterfaceOrientationLandscape and I cannot get the controller to stay in portrait. In other words, I need to disable rotation for the UIImagePickerController so it stays in portrait, without removing rotation for the rest of my app. this seems basic, but I can't seem to locate it. How can I prevent this rotation? UPDATE As suggested, I tried subclassing with the following code: @interface UAImagePickerController : UIImagePickerController { } @end @implementation UAImagePickerController - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation { return UIDeviceOrientationIsPortrait(toInterfaceOrientation); } @end The line is not being hit at all with a breakpoint… i think there must be something funky about the UIImagePickerView

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  • Rails redirect_to jQTouch site does not work as expected

    - by tilthouse
    I have a Rails app with a jQTouch mobile site that is displayed if the user goes to m.blah.com. First, I detect the browser, then to a redirect_to m.blah.com if it's an iphone, etc. All well and good. When I use desktop Safari, this all works exactly right. However, when I use an actual iPhone or the Apple iPhone Simulator, it does not. The mobile site appears to load without the browser actually doing the redirect. The URL in the browser is still www. I am wondering if this behavior is due to Mobile Safari, or if it is somehow jQTouch trying to load the page with AJAX, not a reload (which is odd as jQTouch hasn't been loaded at all before the redirect). Any ideas?

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  • Silverlight error-handling conventions: There is no relationship between onSilverlightError and Repo

    - by rasx
    When I see the call System.Windows.Browser.HtmlPage.Window.Eval (which is evil) in ReportErrorToDOM (in App.xaml.cs) this shows me that it has no relationship to onSilverlightError. So what kind of JavaScript-based scenario calls onSilverlightError? When will onSilverlightError definitely be needed? What are Silverlight error-handling conventions in general? This is a very important comment by Erik Monk but needs more detail: There are 2 kinds of terminal errors in Silverlight. 1) Managed errors (hit the managed Application_UnhandledException method). Note that some errors may not even get to this point. If the managed infrastructure can't be loaded for some reason (out of memory error maybe...), you won't get this kind of error. Still, if you can get it, you can use a web service (or the CLOG project) to communicate it back to the server. 2) Javascript errors.

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  • Showing Live Wallpaper in a 1.6 target app by detecting if it's a 2.1 device?

    - by itamarw
    We're building an Android app with target SDK 1.6, so it will run on 1.6 devices and higher. We'd like to support Live Wallpapers, which we know is 2.1+ only. Is there a way to build one app with 1.6 SDK as the target, but detect if the device it's running on is 2.1, and only in that scenario call the live wallpaper API. We're trying to avoid having to build a separate 1.6 and 2.1 versions, and would like to be able to support Live Wallpapers for only 2.1 devices. So to be clear- 1 app, that can support 1.6 and higher, and support live wallpapers for 2.1 devices. Any way of doing this?

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  • scanned image in C#

    - by ahmed fouad
    We wanna a c# solution to correct the scanned image becouse it is rotated and to solve this problem we must detect the rotation angle first then rotate the image.this was our first thinking for our problem then we think image warping will be more accurate as i think it will make the scanned image like our template so we can process it as we know all the coordinates of our template ....... i search for a free SDK or a free solution in c# and helping me in this will be graet work as it is the last task in our working. rally thanxxxx for all.

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  • How to implement Android Pull-to-Refresh

    - by yuku
    In Android applications such as Twitter (official app), when you encounter a ListView, you can pull it down (and it will bounce back when released) to refresh the content. I wonder what is the best way, in your opinion, to implement that? Some possibilities I could think of: An item on top of the ListView - however I don't think scrolling back to item position 1 (0-based) with animation on the ListView is an easy task. Another view outside the ListView - but I need to take care of moving the ListView position down when it is pulled, and I'm not sure if we can detect if the drag-touches to the ListView still really scroll the items on the ListView. Any recommendations?

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  • Development deployment: how to achive edit-and-reload with JSP pages?

    - by doublep
    Out project uses WebLogic as web-server and uses mostly JSP for user interface. With standard setup it is possible to copy edited JSP files into the exploded deployment directory and WebLogic will automatically pick them up, recompile and serve new content through HTTP. However, is it possible to avoid copying at all, so that I just save a file in my editor and it is immediately (well, after a couple of seconds for recompilation) visible? The project uses Apache Ant as building tool. I would imagine what I want would be possible with symlinks (since this is for deployment only I don't care about cross-platformity), but then I don't see how it is possible to symlink lots of files at once with Ant. So, how do I achieve save-JSP-hit-F5-in-browser functionality either with some setting in WebLogic; or with symlinking JSPs using Apache Ant (instead of copying them as is done now); or something else completely?

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  • Edit and Create view using EditCreate.ascx partial in ASP.NET MVC

    - by mare
    If you look at the NerdDinner example of creating and editing dinners then you see they use a partial (ViewUserControl or ASCX) DinnerForm to put the functionality of creating and editing dinners into one file because it is essential the same and they use it using RenderPartial("DinnerForm"). This approach seems fine for me but I've run into a problem where you have to add additonal route values or html properties to the Form tag. This picks up the current action and controller automatically: <% using (Html.BeginForm()) { %> However, if I use another BeginForm() overload which allows to pass in enctype or any other attribute I have to do it like this: <% using ("Create", "Section", new { modal = true }, FormMethod.Post, new { enctype = "multipart/form-data" })) and as you can see we lose the ability to automatically detect in which View we are calling RenderPartial("OurCreateEditFormPartial"). We can't have hardcoded values in there because in Edit View this postback will fail or won't postback to the right controller action. What should I do in this case?

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  • How to recognise vehicle licence / number plate (ANPR) from an image?

    - by Ryan ONeill
    Hi all, I have a web site that allows users to upload images of cars and I would like to put a privacy filter in place to detect registration plates on the vehicle and blur them. The blurring is not a problem but is there a library or component (open source preferred) that will help with finding a licence within a photo? Caveats; I know nothing is perfect and image recognition of this type will provide false positive and negatives. I appreciate that we could ask the user to select the area to blur and we will do this as well, but the question is specifically about finding that data programmatically; so answers such as 'get a person to check every image' is not helpful. This software method is called 'Automatic Number Plate Recognition' in the UK but I cannot see any implementations of it as libraries. Any language is great although .Net is preferred. Thanks in advance Ryan

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  • Method synonyms in Ruby

    - by Max
    I'm familiarizing myself with Ruby and it's the first time I see synonyms for methods in the standard library. For now I've found the ones in the Enumerable module: collect <- map detect <- find include <- member etc. Probably other modules contains synonymic methods too. Why are they there? Is it some kind of backward compatibility? Or is it a feature of the language, so the programmer can choose between different options depending on the context to make the program look like plain English?

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  • ASP.NET MVC reminds me of old Classic ASP spaghetti code...

    - by EdenMachine
    I just went through some MVC tutorials after checking this site out for a while. Is it just me, or does MVC View pages brinig back HORRIBLE flashbacks of Classic ASP spaghetti code with all the jumping in and out of HTML and ASP.NET with yellow delimiters everywhere making it impossible to read? What ever happened to the importance of code/design separation?? I was really sold on the new technology until the tutorials hit the View page development section. Or am I missing something? (And don't say you can use the template to help because it's jsut moving the spaghetti to another location - sweeps it under the rug - it doesn't fix the problem)

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  • Trigger function when mouse click inside textarea AND type stop typing...

    - by marc
    Welcome, In short, my website use BBcode system, and i want allow users to preview message without posting it. I'm using JQuery library. I need 3 actions. 1) When user click in textarea i want display DIV what will contain preview, i want animate opening. 2) When user typing, i want dynamical load parsed by PHP code to DIV. (i'm still thinking what will be best option... refresh every 2 seconds, or maybe we can detect and refresh after 1 second of inactivity [stop typing]) 3) When user click outside textarea i want close preview div with animation. For example the PHP parser will have patch /api/parser.php and variable by POST called $_POST['message']. Any idea my digital friends ?

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  • weird characters in HTML email

    - by sims
    Hi stackers! I'm reading email from a maildir and some emails have weird sets of characters in them: =3D =09 I think =3D is = and =09 is a space. There are some others, but I'm not sure: =E2 =80 =93 Does anyone know what these are and what encoding issues I'm dealing with here? BTW, I tried fetching these email via POP3 and it's the same thing. The reason I'm posting this on SO is not because I'm using a regular mail client to read the data. I'm reading via PHP out of maildir files. Perhaps a regular email client would detect what encoding this is and deal with it. Thanks!

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  • How to tell if any entities in context are dirty with .Net Entity Framework 4.0

    - by Mike Gates
    I want to be able to tell if there is any unsaved data in an entity framework context. I have figured out how to use the ObjectStateManager to check the states of existing entities, but there are two issues I have with this. I would prefer a single function to call to see if any entities are unsaved instead of looping though all entities in the context. I can't figure out how to detect entities I have added. This suggests to me that I do not fully understand how the entity context works. For example, if I have the ObjectSet myContext.Employees, and I add a new employee to this set (with .AddObject), I do not see the new entity when I look at the ObjectSet and I also don't see the .Count increase. However, when I do a context.SaveChanges(), my new entity is persisted...huh? I have been unable to find an answer to this in my msdn searches, so I was hoping someone here would be able to clue me in. Thanks in advance.

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  • blackberry deployment and release process

    - by hishboy
    So I'm building a blackberry app and was wondering if there is any good documentation on deployment/release best practices? Blackberry's "A70 – How to Deploy and Distribute Applications" document is kind of lacking. I guess I'm looking for answers for the following question (Specifically for Over-The-Air aka OTA): I'm building an app for OS 4.5 and up. Do I need to compile a separate COD/JAD for each version? (i.e. 4.5, 4.6, 4.6.1, 4.7, and 5.0) How do I detect OS version from the user-agent? What's the best way to compile COD/JAD files? anything else that might be good to know :) Thanks in advance!

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  • How do you use kate? Tips/Tricks/Workflow

    - by Roman A. Taycher
    We all seen a bunch of these? Mostly for IDE's but also for vim and emacs. Kate is (only) a text editor (an awesome one) but it has a ton of options plus a number of plugins, so its hard to know all of it well. How do use the Kate text editor? Please share your workflow and help me and others learn some of the cool tricks you use. I'll start I use the built in terminal a lot opening files quickly, and using it as an enhanced haskell repl with ghci (since ghci doesn't allow you all to just put in all kinds of haskell code). Also use split views to quickly compare files (especially different versions of the same file). Also the auto-complete maybe simple(more use for saving typing time then remembering functions) but it works really well for that. Also if You highlight something and hit a start [/{/( it puts it in between brackets rather then replacing it with a bracket(why the hell do a lot of IDEs not have this feature).

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  • How to capture actions taken on Windows Media Player

    - by bluenile
    Hi, I want to programmtically detect the state of movie currently being played in Windows Media Player. i..e if the movie is maximized I need to find that it is maximized and put the word "MAXIMIZED" in text file, if the movie is paused I need to capture PAUSED in text file, if movie is stopped I need to capture STOPPED in text file. The capturing needs to happen in the background i.e. totally transparent to end user as the user takes action while watching the movie on Windows Media player I am planning to achieve this using Visual Basic 6.0 Kindly provide me inputs / pointers on how to go about this. Thanks

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