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  • jQuery Drag/Drop problem: mousemove Event not binding for some elements

    - by saturdayplace
    Using the latest jQuery/UI that are hosted at Google. I've got the following markup: <ul id="tree"> <li><a href="1/">One</a></li> <li><a href="2/">Two</a></li> </ul> And the following javascript: $(document).ready(function(){ // Droppable callbacks function dragOver(overEvent, ui_object) { $(this).mousemove(function(moveEvent){ console.log("moved over", this); }); } function drop_deactivate() { $(this).unbind(); } function drag_out() { $(this).unbind(); } // Actual dragging $("#treeContainer li").draggable({ revert: true, revertDuration: 0 }); // Actuall dropping $("a").droppable({ tolerance: "pointer", over: dragOver, deactivate: drop_deactivate, out: drag_out }); }); If I drag the first li down over the second, the mousemove function fires (and firebug logs the output). But if I drag the second li up over the first, the mousemove function doesn't fire. You can see this live at http://jsbin.com/ivala. Is there a reason for this? Should I be trapping the mousemove event in some other way? Edit: It appears as thought the mousemove() event isn't binding for earlier elements than the one currently being dragged (should be bound upon their mouseover).

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  • ps forrest for session id

    - by azatoth
    Often I want to get a nice readout what process are running and their relationship; I usually by habit runs ps auxfww and eventual grep for the process in question. Having been thinking about the problem I tried to create an oneliner to get the process tree in ps ufww format for all processes which has the session id specified by arbitrary process name(s); ending up in following code: ps ufww --sid=$(ps -C apache2 -o sess --no-headers | sort | uniq | grep -v -E '^ +0$' | awk 'NR==1{x=$0;next}NF{x=x","$0};END{gsub(/[[:space:]]*/,"",x);print x}') giving for example following output: USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND root 4157 0.0 0.1 41264 3120 ? Ss Jun11 0:00 /usr/sbin/apache2 -k start www-data 4329 0.0 0.0 41264 1976 ? S Jun11 0:00 \_ /usr/sbin/apache2 -k start www-data 4330 0.0 0.0 41264 2028 ? S Jun11 0:00 \_ /usr/sbin/apache2 -k start www-data 4331 0.0 0.0 41264 2028 ? S Jun11 0:00 \_ /usr/sbin/apache2 -k start www-data 4332 0.0 0.0 41264 2028 ? S Jun11 0:00 \_ /usr/sbin/apache2 -k start www-data 4333 0.0 0.0 41264 2032 ? S Jun11 0:00 \_ /usr/sbin/apache2 -k start www-data 6648 0.0 0.0 41264 1884 ? S Jun11 0:00 \_ /usr/sbin/apache2 -k start www-data 6654 0.0 0.0 41264 1884 ? S Jun11 0:00 \_ /usr/sbin/apache2 -k start www-data 6655 0.0 0.0 41264 1884 ? S Jun11 0:00 \_ /usr/sbin/apache2 -k start I do wonder now if anyone has an better idea to solve this issue? Are there anything out there that is easier to "oneline" and gives above or better information? For example I would actually want to have included all childs relative any parent. (uncertain if this should be on SF instead, but felt it was more like an programming question)

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  • Manual drag-drop operations in Flex

    - by Yarin
    This is a two-part problem: A) I'm implementing several irregular drag-drop operations in Flex (e.g. DataGrid ItemRenderer into Tree). My preference was modifying DragManager operations to meet my needs, and in fact using DragManager allows me to do everything I need, but I'm having serious issues with performance. For example, dragging anything over a many-columned DataGrid, whether the drag was initiated with DragManager.doDrag, or just using native ListBase drag-drop functionality, slows the drag movement to a crawl. Even if the DataGrid is disabled/ not listenening for any move/drag events, this happens. On the other hand, if the drag is initiated by calling .startDrag() on the Sprite, the drag is smooth and performs great over DataGrids and everything else. So part A would be: Is there a reason why .startDrag() operations work so well, while drags initiated through DragManager.doDrag suffer so badly when over certain components? B) If indeed the solution is to handle drag-drops using .startDrag(), how would I go about determining what component the mouse is over when the drag is released? In my example, my dragged object is brought up to the top level of the display list, and so is being moved around in stage coordinates. mouseMove, mouseOver events don't fire on the components I'm dragging over because the mouse is constantly over the dragged component, so I would need some sort of stage.coordinate - visibleComponentAtThatCoordinate conversion. Any thoughts on this? Thanks alot!-- Yarin

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  • gcc: Do I need -D_REENTRANT with pthreads?

    - by stefanB
    On Linux (kernel 2.6.5) our build system calls gcc with -D_REENTRANT. Is this still required when using pthreads? How is it related to gcc -pthread option? I understand that I should use -pthread with pthreads, do I still need -D_REENTRANT? On a side note, is there any difference that you know off between the usage of REENTRANT between gcc 3.3.3 and gcc 4.x.x ? When I use -pthread gcc option I can see that _REENTRANT gets defined. Will omitting -D_REENTRANT from command line make any difference, for example could some objects be compiled without multithreaded support and then linked into binary that uses pthreads and will cause problems? I assume it should be ok just to use: g++ -pthread > echo | g++ -E -dM -c - > singlethreaded > echo | g++ -pthread -E -dM -c - > multithreaded > diff singlethreaded multithreaded 39a40 > #define _REENTRANT 1 We're compiling multiple static libraries and applications that link with the static libraries, both libraries and application use pthreads. I believe it was required at some stage in the past but want to know if it is still required. Googling hasn't returned any recent information mentioning -D_REENTRANT with pthreads. Could you point me to links or references discussing the use in recent version of kernel/gcc/pthread? Clarification: At the moment we're using -D_REENTRANT and -lpthread, I assume I can replace them with just g++ -pthread, looking at man gcc it sets the flags for both preprocessor and linker. Any thoughts?

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  • set iPhone Required device capabilities

    - by chozinul
    My application is for "iPhone ONLY", But I have made a mistake in the first place by not setting the application for specific device. The current setting now is: Requirement: Compatible for iPhone, iPod touch and iPad. I would like to set it to: Requirement: Compatible for iPhone. I have go to some tutorial and forum. and nothing can solve my problem. I have also contact the apple support and this is what I got: "You are permitted to expand your device requirements only. Submitting an update to your binary to restrict your device requirements is not permitted. " is it mean that I can not set my application for iPhone only? If i can change it, what would you recommend me to do? I have change the setting of device capability inside the plist, to one of this. which one is correct, use "UIRequiredDeviceCapabilities" or "Required device capabilities"? i provide the screenshoot in here: http://img218.imageshack.us/gal.php?g=screenshot20100604atam1.png does the way I use it correct? Thanks.

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  • Command /Developer/usr/bin/dsymutil failed with exit code 10

    - by Evan Robinson
    I am getting the above error message randomly (so far as I can tell) on iPhone projects. Occasionally it will go away upon either: Clean Restart XCode Reboot Reinstall XCode But sometimes it won't. When it won't the only solution I have found is to take all the source material, import it into a new project, and then redo all the connections in IB. Then I'm good until it strikes again. Anybody have any suggestions? [update 20091030] I have tried building both debug and release versions, both full and lite versions. I've also tried switching the debug symbols from DWARF with external dSYM file to DWARF and to stabs. Clean builds in all formats make no differences. Permission repairs change nothing. Setting up a new user has no effect. Same error on the builds. Thanks for the suggestions! [Update 20091031] Here's an easier and (apparently) reliable workaround. It hinges upon the discovery that the problem is linked to a target not a project In the same project file, create a new target Option-Drag (copy) all the files from the BAD target 'Copy Bundle Resources' folder to the NEW target 'Copy Bundle Resources' folder Repeat (2) with 'Compile Sources' and 'Link Binary With Libraries' Duplicate the Info.plist file for the BAD target and name it correctly for the NEW target. Build the NEW target! [Update 20100222] Apparently an IDE bug, now apparently fixed, although Apple does not allow direct access to the original bug of a duplicate. I can no longer reproduce this behaviour, so hopefully it is dead, dead, dead.

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  • json_encode with mysql content and umlauts in utf-8

    - by i3rutus
    Hey, i feel my beard growing while trying to find out the Problem here. Basic the Problem is, that Umlauts/Special Signs äöß ... don't work. I guess everyone is sick and tired of that questions but all the solutions found online don't seem to work. Im having utf-8 content in a utf-8 Mysql Database. I feel the Problem ist somewhere in the Database connection but i just can't figure out. character_set_client utf8 character_set_connection utf8 character_set_database utf8 character_set_filesystem binary character_set_results utf8 character_set_server latin1 character_set_system utf8 Im not sure if the problem is the latin1 for character_set_server because im not into that mysql stuff. I also dont know how to change cause i can't access the mysql server's config files. Whatever is confusing me, that if i get my results from the Database and echo it, print_r gives the right result. ini_set('default_charset','utf-8'); header('Content-Type: text/plain; > charset=utf-8'); Firefox says char encode is utf-8 but if when i output: print_r($listnew); echo json_encode($listnew[5]); print_r results everything right but json_encode does wrong. print_r: [5] => Array ( [id] => 5 [data] => U-Bahnhof Theresienstraße [size] => 17 ) json_encode: {"id":5,"data":"U-Bahnhof Theresienstra\u00dfe","size":17} i know json_encode needs a utf-8 string to work properly there and i feel im having a encode trouble here but i just can't firgure out where it is. Any help would be appreciated, thanks in advance. i3

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  • Algorithm for converting hierarchical flat data (w/ ParentID) into sorted flat list w/ indentation l

    - by eagle
    I have the following structure: MyClass { guid ID guid ParentID string Name } I'd like to create an array which contains the elements in the order they should be displayed in a hierarchy (e.g. according to their "left" values), as well as a hash which maps the guid to the indentation level. For example: ID Name ParentID ------------------------ 1 Cats 2 2 Animal NULL 3 Tiger 1 4 Book NULL 5 Airplane NULL This would essentially produce the following objects: // Array is an array of all the elements sorted by the way you would see them in a fully expanded tree Array[0] = "Airplane" Array[1] = "Animal" Array[2] = "Cats" Array[3] = "Tiger" Array[4] = "Book" // IndentationLevel is a hash of GUIDs to IndentationLevels. IndentationLevel["1"] = 1 IndentationLevel["2"] = 0 IndentationLevel["3"] = 2 IndentationLevel["4"] = 0 IndentationLevel["5"] = 0 For clarity, this is what the hierarchy looks like: Airplane Animal Cats Tiger Book I'd like to iterate through the items the least amount of times possible. I also don't want to create a hierarchical data structure. I'd prefer to use arrays, hashes, stacks, or queues. The two objectives are: Store a hash of the ID to the indentation level. Sort the list that holds all the objects according to their left values. When I get the list of elements, they are in no particular order. Siblings should be ordered by their Name property. Update: This may seem like I haven't tried coming up with a solution myself and simply want others to do the work for me. However, I have tried coming up with three different solutions, and I've gotten stuck on each. One reason might be that I've tried to avoid recursion (maybe wrongly so). I'm not posting the partial solutions I have so far since they are incorrect and may badly influence the solutions of others.

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  • java Processbuilder - exec a file which is not in path on OS X

    - by Jakob
    Okay i'm trying to make ChucK available in exported Processing sketches, i.e. if i export an app from Processing, the ChucK VM binary will be executed from inside the app. So as a user of said app you don't need to worry about ChucK being in your path at all. Right now i'm generating and executing a bash script file, but this way i don't get any console output from ChucK back into Processing: #!/bin/bash cd "[to where the Chuck executable is located]" ./chuck --kill killall chuck # just to make sure ./chuck chuckScript1.ck cuckScriptn.ck then Process p = Runtime.getRuntime().exec("chmod 777 "+scriptPath); p = Runtime.getRuntime().exec(scriptPath); This works but i want to run ChucK directly from Processing instead, but can't get it to execute: String chuckPath = "[folder in which the chuck executable is located]" ProcessBuilder builder = new ProcessBuilder (chuckPath+"/chuck", "test.ck"); final Process process = builder.start(); InputStream is = process.getInputStream(); InputStreamReader isr = new InputStreamReader(is); BufferedReader br = new BufferedReader(isr); String line; while((line = br.readLine()) != null) println(line); println("done chuckin'! exitValue: " + process.exitValue()); Sorry if this is newbie style :D

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  • RapidXML, reading and saving values

    - by Layne
    Hello, I've worked myself through the rapidXML sources and managed to read some values. Now I want to change them and save them to my XML file: Parsing file and set a pointer void SettingsHandler::getConfigFile() { pcSourceConfig = parsing->readFileInChar(CONF); cfg.parse<0>(pcSourceConfig); } Reading values from XML void SettingsHandler::getDefinitions() { SettingsHandler::getConfigFile(); stGeneral = cfg.first_node("settings")->value(); /* stGeneral = 60 */ } Changing values and saving to file void SettingsHandler::setDefinitions() { SettingsHandler::getConfigFile(); stGeneral = "10"; cfg.first_node("settings")->value(stGeneral.c_str()); std::stringstream sStream; sStream << *cfg.first_node(); std::ofstream ofFileToWrite; ofFileToWrite.open(CONF, std::ios::trunc); ofFileToWrite << "<?xml version=\"1.0\"?>\n" << sStream.str() << '\0'; ofFileToWrite.close(); } Reading file into buffer char* Parser::readFileInChar(const char* p_pccFile) { char* cpBuffer; size_t sSize; std::ifstream ifFileToRead; ifFileToRead.open(p_pccFile, std::ios::binary); sSize = Parser::getFileLength(&ifFileToRead); cpBuffer = new char[sSize]; ifFileToRead.read( cpBuffer, sSize); ifFileToRead.close(); return cpBuffer; } However, it's not possible to save the new value. My code is just saving the original file with a value of "60" where it should be "10". Rgds Layne

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  • Bit reversal of an integer, ignoring integer size and endianness

    - by ??O?????
    Given an integer typedef: typedef unsigned int TYPE; or typedef unsigned long TYPE; I have the following code to reverse the bits of an integer: TYPE max_bit= (TYPE)-1; void reverse_int_setup() { TYPE bits= (TYPE)max_bit; while (bits <<= 1) max_bit= bits; } TYPE reverse_int(TYPE arg) { TYPE bit_setter= 1, bit_tester= max_bit, result= 0; for (result= 0; bit_tester; bit_tester>>= 1, bit_setter<<= 1) if (arg & bit_tester) result|= bit_setter; return result; } One just needs first to run reverse_int_setup(), which stores an integer with the highest bit turned on, then any call to reverse_int(arg) returns arg with its bits reversed (to be used as a key to a binary tree, taken from an increasing counter, but that's more or less irrelevant). Is there a platform-agnostic way to have in compile-time the correct value for max_int after the call to reverse_int_setup(); Otherwise, is there an algorithm you consider better/leaner than the one I have for reverse_int()? Thanks.

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  • What was Tim Sweeney thinking? (How does this C++ parser work?)

    - by Frank Krueger
    Tim Sweeney of Epic MegaGames is the lead developer for Unreal and a programming language geek. Many years ago posted the following screen shot to VoodooExtreme: As a C++ programmer and Sweeney fan, I was captivated by this. It shows generic C++ code that implements some kind of scripting language where that language itself seems to be generic in the sense that it can define its own grammar. Mr. Sweeney never explained himself. :-) It's rare to see this level of template programming, but you do see it from time to time when people want to push the compiler to generate great code or because they want to create generic code (for example, Modern C++ Design). Tim seems to be using it to create a grammar in Parser.cpp - you can see what look like prioritized binary operators. If that is the case, then why does Test.ae look like it's also defining a grammar? Obviously this is a puzzle that needs to be solved. Victory goes to the answer with a working version of this code, or the most plausible explanation, or to Tim Sweeney himself if he posts an answer. :-)

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  • Open source Java CMS for Google App Engine?

    - by markvgti
    I am looking for an open source Java CMS (Web CMS, actually) to run on Google App Engine. I have looked at related older questions on this topic (What CMS runs on Google AppEngine?, CMS over Google App Engine, with SEO etc.) but the problem is that they all largely list Python-based CMSes. Plus these questions are pretty old, and since GAE is a fast-moving target, I thought it might be worthwhile to ask again. I want a CMS for creating some websites (for myself and for others), but would rather not start writing one from scratch. A "good" (very subjective, I know) open source WCMS allows me to start using a product, while still being able to add to/extend the product/project. On the one hand I am looking for a somewhat mature product/project, on the other hand it's easier to start contributing to the development cycle of a young product/project (conflicting, I know :-). Here are some features that would be preferable: [X]HTML/XML/CSS based templating Ability to create multiple blogs Galleries Ability to create a "Downloads" section (is this pretty much standard?) Separate management for digital assets (images, PDFs, binary files etc.) Roles like "Administrator", "Editor", "Contributor" etc. (or their equivalents) Ability to move/reorganize pages Export to PDF Reformat content for printing Is the CMS you are about to suggest especially well-suited to publishing an online book? My idea is that while the book may be offered as a downloadable eBook, the latest, most current version will be the one available on the website.

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  • Setting up multiple channel types (AMF/AMFX) for Flex/BlazeDs

    - by Fergal
    We've configured our Flex client to have two channels for calling our services via BlazeDS. One channel is configured to use AMFChannel and the other for HTTPChannel. Here's the services-config.xml <channel-definition id="my-amf" class="mx.messaging.channels.AMFChannel"> <endpoint url="http://{server.name}:{server.port}/{context.root}/data/messagebroker/amf" class="flex.messaging.endpoints.AMFEndpoint" /> <properties> <polling-enabled>false</polling-enabled> </properties> </channel-definition> <channel-definition id="my-amfx" class="mx.messaging.channels.HTTPChannel"> <endpoint url="http://{server.name}:{server.port}/{context.root}/data/messagebroker/amfx" class="flex.messaging.endpoints.HTTPEndpoint" /> <properties> <polling-enabled>false</polling-enabled> </properties> </channel-definition> Our flex client is written to use either AMF or AMFX depending on how we configure it. The problem is that although the client can switch between channels it sends an AMF binary payload when attempting to call services via AMFX (expecting XML). The funny thing is that we can write services-config.xml to use either AMF or AMFX individually but Flex doesn't seem to want to let us use both. Is this a bug in Flex? If not how can we get it to use the correct protocol?

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  • git-p4 submit fails with "Not a valid object name HEAD~261"

    - by Harlan
    I've got a git repository that I'd like to mirror to a Perforce repository. I've downloaded the git-p4 script (the more recent version that doesn't give deprecation warnings), and have been working with that. I've figured out how to pull changes from Perforce, but I'm getting an error when I try to sync changes from the git repo back. Here's what I've done so far: git clone [email protected]:asdf/qwerty.git git-p4 sync //depot/path/to/querty git merge remotes/p4/master (there was a single README file...) So, I've copied the origin to a clean, new director, got a lovely looking merged tree of files, and git status shows I'm up-to-date. But: > git-p4 submit fatal: Not a valid object name HEAD~261 Command failed: git cat-file commit HEAD~261 This thread on the git mailing list seems to be relevant, but I can't figure out what they're doing with all the A, B, and Cs. Could someone please clarify what "Not a valid object name" means, and what I can do to fix the problem? All I want to do is to periodically snapshot the origin/master into Perforce; a full history is not required. Thanks.

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  • Encrypting with Perl CBC and decrypting with PHP mcrypt

    - by Ed
    I have an encrypted string that was encrypted with Perl Crypt::CBC (Rijndael,cbc). The original plaintext was encrypted with encrypt_hex() method of Crypt::CBC. $encrypted_string = '52616e646f6d49567b2c89810ceddbe8d182c23ba5f6562a418e318b803a370ea25a6a8cbfe82bc6362f790821dce8441a790a7d25d3d9ea29f86e6685d0796d'; I have the 32 character key that was used. mcrypt is successfully compiled into PHP, but I'm having a very hard time trying to decrypt the string in PHP. I keep getting gibberish back. If I unpack('H*', $encrypted_string), I see 'RandomIV' followed by what looks like binary. I can't seem to correctly extract the IV and separate the actual encrypted message. I know I'm not providing my information, but I'm not sure where else to start. $cipher = 'rijndael-256'; $cipher_mode = 'cbc'; $td = mcrypt_module_open($cipher, '', $cipher_mode, ''); $key = '32 characters'; // Does this need to converted to something else before being passed? $iv = ?? // Not sure how to extract this from $encrypted_string. $token = ?? // Should be a sub-string of $encrypted_string, correct? mcrypt_generic_init($td, $key, $iv); $clear = rtrim(mdecrypt_generic($td, $token), ''); mcrypt_generic_deinit($td); mcrypt_module_close($td); echo $clear; Any help, pointers in the right direction, would be greatly appreciated. Let me know if I need to provide more information.

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  • iPad app crashes when Youtube player clicked in UIWebView

    - by choonkeat
    I have a iPhone/iPad app (universal binary) with a regular UIWebView that displays webpages on the Internet. When the user presses on a Youtube embed, the iPhone app performs normally -- opening up the video player, when you close it, it returns to the app. However, on the iPad it crashes with Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[UIWindow addEventMonitor:]: unrecognized selector sent to instance 0x1219c0' #0 0x30c8e0a0 in __kill () #1 0x30c8e096 in kill () #2 0x30c8e088 in raise () #3 0x30ca2210 in abort () #4 0x32944a22 in __gnu_cxx::__verbose_terminate_handler () #5 0x335657ca in _objc_terminate () #6 0x32942df4 in __cxxabiv1::__terminate () #7 0x32942e48 in std::terminate () #8 0x32942f18 in __cxa_throw () #9 0x335646aa in objc_exception_throw () #10 0x32c9517a in -[NSObject doesNotRecognizeSelector:] () #11 0x32c94b00 in ___forwarding___ () #12 0x32c316d0 in __forwarding_prep_0___ () #13 0x32810492 in -[MPInactivityMonitor initForWindow:inactivityDuration:delegate:] () #14 0x32831dfe in -[MPFullScreenVideoViewController _createInactivityMonitor] () #15 0x328324bc in -[MPFullScreenVideoViewController showOverlayAnimated:] () #16 0x32833612 in -[MPAbstractFullScreenVideoViewController setControlsOverlayVisible:animate:] () #17 0x3281fca4 in -[UIMoviePlayerController setControlsOverlayVisible:disableAutohide:animate:] () #18 0x330bb444 in -[YTMovieView _switchToVideo:] () #19 0x330bb028 in -[YTMovieView willShowForVideo:inList:orVideoID:] () #20 0x04b8d142 in dyld_stub_time () #21 0x04b8b82e in dyld_stub_time () #22 0x32c2616c in -[NSObject performSelector:withObject:withObject:] () #23 0x3152716c in -[UIApplication sendAction:to:from:forEvent:] () #24 0x3152710c in -[UIApplication sendAction:toTarget:fromSender:forEvent:] () #25 0x315270de in -[UIControl sendAction:to:forEvent:] () #26 0x31526e30 in -[UIControl(Internal) _sendActionsForEvents:withEvent:] () #27 0x3152747e in -[UIControl touchesEnded:withEvent:] () #28 0x31525e54 in -[UIWindow _sendTouchesForEvent:] () #29 0x3152579c in -[UIWindow sendEvent:] () #30 0x315213be in -[UIApplication sendEvent:] () #31 0x31520d2a in _UIApplicationHandleEvent () #32 0x30d62b32 in PurpleEventCallback () #33 0x32c23d9c in CFRunLoopRunSpecific () #34 0x32c234e0 in CFRunLoopRunInMode () #35 0x30d620da in GSEventRunModal () #36 0x30d62186 in GSEventRun () #37 0x314d54c8 in -[UIApplication _run] () #38 0x314d39f2 in UIApplicationMain () (I don't even see my app in the stack trace (except for the top level main.m) In iPad Mobile Safari, on the same webpage, the video will play in-place on the webpage. Is there anything I have to do to enable that? Or did I forget to enable something?

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  • Using UpdatePanels inside of a ListView

    - by Jim B
    Hey everyone, I'm wondering if anybody has run across something similar to this before. Some quick pseudo-code to get started: <UpdatePanel> <ContentTemplate> <ListView> <LayoutTemplate> <UpdatePanel> <ContentTemplate> <ItemPlaceholder /> </ContentTemplate> </UpdatePanel> </LayoutTemplate> <ItemTemplate> Some stuff goes here </ItemTemplate> </ListView> </ContentTemplate> </UpdatePanel> The main thing to take away from the above is that I have an update panel which contains a listview; and then each of the listview items is contained in its own update panel. What I'm trying to do is when one of the ListView update panels triggers a postback, I'd want to also update one of the other ListView item update panels. A practical implementation would be a quick survey, that has 3 questions. We'd only ask Question #3 if the user answered "Yes" to Question #1. When the page loads; it hides Q3 because it doesn't see "Yes" for Q1. When the user clicks "Yes" to Q1, I want to refresh the Q3 update panel so it now displays. I've got it working now by refreshing the outer UpdatePanel on postback, but this seems inefficient because I don't need to re-evaluate every item; just the ones that would be affected by the prerequisite i detailed out above. I've been grappling with setting up triggers, but i keep coming up empty mainly because I can't figure out a way to set up a trigger for the updatepanel for Q3 based off of the postback triggered by Q1. Any suggestions out there? Am I barking up the wrong tree?

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  • How do I stop inheritance in xaml?

    - by cfouche
    Hi Let's say I have some Control that has been disabled. It contains a bunch of elements, but I want one of those child elements to remain enabled. Something like this: <ContentControl IsEnabled="False"> <Border> <Button Content="Button" IsEnabled="True"/> </Border> </ContentControl> So in this example, the Button's IsEnabled="True" setting gets overridden by its parent. Is there a way of stopping this from happening? This seems like a strange thing to be doing, but I have a situation where, when a Control is disabled and a user mouses down on it, I still want an event to be triggered. I read in WPF Unleashed that wrapping something in a Frame control, "..isolates the content from the rest of the UI [and] properties that would normally be inherited down the element tree stop when they reach the Frame", but wrapping the Button in the example above in a Frame doesn't work. Am I on the wrong track here?

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  • Why does division yield a vastly different result than multiplication by a fraction in floating points.

    - by Avram
    I understand why floating point numbers can't be compared, and know about the mantissa and exponent binary representation, but I'm no expert and today I came across something I don't get: Namely lets say you have something like: float denominator, numerator, resultone, resulttwo; resultone = numerator / denominator; float buff = 1 / denominator; resulttwo = numerator * buff; To my knowledge different flops can yield different results and this is not unusual. But in some edge cases these two results seem to be vastly different. To be more specific in my GLSL code calculating the Beckmann facet slope distribution for the Cook-Torrance lighitng model: float a = 1 / (facetSlopeRMS * facetSlopeRMS * pow(clampedCosHalfNormal, 4)); float b = clampedCosHalfNormal * clampedCosHalfNormal - 1.0; float c = facetSlopeRMS * facetSlopeRMS * clampedCosHalfNormal * clampedCosHalfNormal; facetSlopeDistribution = a * exp(b/c); yields very very different results to float a = (facetSlopeRMS * facetSlopeRMS * pow(clampedCosHalfNormal, 4)); facetDlopeDistribution = exp(b/c) / a; Why does it? The second form of the expression is problematic. If I say try to add the second form of the expression to a color I get blacks, even though the expression should always evaluate to a positive number. Am I getting an infinity? A NaN? if so why?

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  • Phonegap Screenshot plugin in Cordova 2.0.0

    - by ObjectiveJ
    I have set up the screenshot plugin from github, located here: https://github.com/phonegap/phonegap-plugins/tree/master/Android/Screenshot I set it up as instructed and with 1.8.1 of cordova. It worked and the screenshot was saved to the phone. However it fails with cordova 2.0.0. Screenshot.java code: https://github.com/phonegap/phonegap-plugins/blob/master/Android/Screenshot/src/org/apache/cordova/Screenshot.java Screenshot.js code: https://github.com/phonegap/phonegap-plugins/blob/master/Android/Screenshot/www/Screenshot.js Due to the advice of a very clever man called Simon MacDonald, I removed line 31 and 38 from the JS file shown above. However when I try to use the screenshot plugin with cordova 2.0.0 I receive these errors: ERROR: org.json.JSONException: Value undefined of type java.lang.String cannot be converted to JSONArray. Error: Status=8 Message=JSON error file:///android_asset/www/cordova-2.0.0.js: Line 938 : Error: Status=8 Message=JSON error Error: Status=8 Message=JSON error at file:///android_asset_/www/cordova-2.0.0.js:938 line 938 of the cordova.js is: // If error, then display error else { console.log("Error: Status="+v.status+" Message="+v.message); but im almost certain this is a compatibility error. Does anyone know a fix for this, or even a reason. Im abit lost. Any help is appreciated. I call the screenshot.js with this code: function takeScreenShot() { cordovaRef.exec("Screenshot.saveScreenshot"); } Any help massively appreciated.

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  • dataset - set parent child relations

    - by Night Walker
    Hello all I am trying to set the relations of rows in DataSet and then to show that relation in XTraaTreeList as tree with relations. | --| ----| but i get | | | I am doing this code but i get a view without any relations i get them all in one level. Any idea what i am doing wrong ? this.treeList1.BeginUpdate(); this.dataTable1.Clear(); DataRow dr = this.dataTable1.NewRow(); dr[0] = "father"; dr[1] = true; dr[2] = "ddd"; this.dataTable1.Rows.Add(dr); DataRow dr1 = this.dataTable1.NewRow(); dr1[0] = "son"; dr1[1] = true; dr1[2] = "ddd"; dr1.SetParentRow(dr); this.dataTable1.Rows.Add(dr1); DataRow dr2 = this.dataTable1.NewRow(); this.dataTable1.ParentRelations() dr2[0] = "grand son"; dr2[1] = true; dr2[2] = "ddd"; dr2.SetParentRow(dr1); this.dataTable1.Rows.Add(dr2); this.treeList1.EndUpdate();

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  • help with grouping and sorting for TreeView in xaml

    - by danhotb
    I am having problems getting my head around grouping and sorting in xaml and hope someone can get me straightened out! I have creaed an xml file from a tree of files and folders (just like windows explorer) that can be serveral levels deep. I have bound a TreeView control to an xml datasource and it works great! It sorts everything alphabetically but ... I would like it to sort all folders first then all files, rather than folders listed with files, as it does now. the xml : if you load this to a treeviw it will display the two files before the folder because they are first in alpha-order. here is my code: <!-- This will contain the XML-data. --> <XmlDataProvider x:Key="xmlDP" XPath="*"> <x:XData> <Select_Project /> </x:XData> </XmlDataProvider> <!-- This HierarchicalDataTemplate will visualize all XML-nodes --> <HierarchicalDataTemplate DataType="project" ItemsSource ="{Binding}"> <TextBlock Text="{Binding XPath=@name}" /> </HierarchicalDataTemplate> <HierarchicalDataTemplate DataType="folder" ItemsSource ="{Binding}"> <TextBlock Text="{Binding XPath=@name}" /> </HierarchicalDataTemplate> <HierarchicalDataTemplate DataType="file" ItemsSource ="{Binding}"> <TextBlock Text="{Binding XPath=@name}" /> </HierarchicalDataTemplate> <CollectionViewSource x:Key="projectView" Source="{StaticResource xmlDP}"> <CollectionViewSource.SortDescriptions> <!-- ADD SORT DESCRIPTION HERE --> </CollectionViewSource.SortDescriptions> </CollectionViewSource> <TreeView Margin="11,79.992,18,19.089" Name="tvProject" BorderThickness="1" FontSize="12" FontFamily="Verdana"> <TreeViewItem ItemsSource="{Binding Source={StaticResource xmlDP}, XPath=*}" Header="Project"/> </TreeView>

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  • Fail to load NPAPI plugin in Google Chrome on Mac OS X

    - by Roman
    I have been trying to get Google Chrome (6.0.401.1 dev) on Mac OS X to load an NPAPI plugin without success so far. I have been working around the npsimple example from here: http://git.webvm.net/?p=npsimple. Using gcc on Mac and VC++ 2008 on Windows I managed to get it running on Safari and Firefox on Mac OS X and Firefox and Google Chrome on Windows, but not on Google Chrome on Mac OS X. When trying to debug Google Chrome on Mac OS X it seemed Google Chrome was briefly dyld-loading (and immediately dyld-unloading) the plugin on startup, but without actually looking-up any symbols within the plugin or calling any of the functions. It seemed to be doing that for every plugin, though. Also, when loading a page with the embed-tag for the plugin, Google Chrome did not seem to even dyld-load the plugin and no functions were called (not even NP_GetEntryPoints). Google Chrome also does not output any error message, it just simply does not load the plugin. I am not sure I caught everything with gdb because of Google Chrome using different processes, but I have also tried all the switches like --no-sandbox, --single-process and --plugin-startup-dialog (which incidentally does not seem to work at all on Mac OS X). I also made sure the architecture of the binary matches (i.e. 32-bit for Google Chrome). Has anybody had similar problems before? Is there anything I am missing here, like a gcc switch when compiling or something? Any help would be greatly appreciated.

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  • Eclipse RAP - Firefox doesn't forget session

    - by Fritz H
    We've got an Eclipse RAP application that's behaving a bit strangely in Firefox - two distinct problems. When you browse around, you can click on a button in one part of the system. This opens a popup window like so: IWorkbenchBrowserSupport bs; bs = PlatformUI.getWorkbench().getBrowserSupport(); int style = IWorkbenchBrowserSupport.AS_EXTERNAL; IWebBrowser b = bs.createBrowser(style, getRandomID(), "Hello world", ""); b.openURL(new URL(...)); where the URL is another servlet in the application. This servlet is in the same runtime, but has nothing to do with RAP - it takes a binary blob from in-memory storage and dumps it in the output stream. Problem 1: This causes the HTTP session to die in firefox, and shows the "session expired" RAP error page with a link to restart the session. Problem 2: Now, when you click on the link to restart the session, it shows the application's dialog again, but the session expired error is shown again the moment you do anything. This prevents the user from using the system again, unless Firefox is closed down completely and restarted. A quick peek with FireBug reveals that the JSESSIONID passed by Firefox does not change. Has anyone seen this before?

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