Daily Archives

Articles indexed Tuesday January 18 2011

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• How do I force Windows 7 to recognize my Projector?

  - by user63564

  I have a new Dell XPS with an NVIDIA GeForce GT 445M and an old (several years) Epson PowerLite Cinema 550 projector. Windows 7 refuses to recognize that the projector is connected under normal conditions (I'll get to the strange condition in a moment). Here are some things that I have already tried: Confirm that the projector continues to work well on my old Windows XP laptop. Confirm that the video cable (HDMI to HDMI) is connected Make sure the Dell laptop is plugged in to wall power at all times Reboot both the computer and the projector Click "Detect" under the "Connect to an External Display" Windows dialog (no reaction) Click "Rigorous Display Detection" under NVIDIA Control Panel (dialog: none found) Checked "Force Television Detection on startup" under "My display is not shown..." in NVIDIA Control Panel (no effect) Here's where it gets weird... My projector has three states: off, standby and on. Standby means the power switch on the back is on, but the projector is effectively off (no picture, no access to menu or controls). When I plug in the HDMI cable while the projector is in standby, Windows detects the projector! It lets me switch to Duplicate, Extend, or Project Only mode, and adjusts the resolution appropriately. A new Generic Plug-n-Play monitor shows up in my device manager. A "Seiko EPSON PJ" display shows up in my NVIDIA control panel. Then if I turn my projector on, Windows no longer recognizes the display. This is true whether I turn the projector on while the HDMI cable is plugged in, or if I unplug the HDMI cable while turning on the projector. Anyone have any ideas, because I'm completely stumped...?

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• Looking for updated BIOS for '99 Gateway in order to format/recognize >127 GB HD

  - by Jeff

  I have a '99 Gateway that's apparently too old for even Gateway to acknowledge it exists. Want to use it as a media hub and put in a 320GB HD, but it will not format above 127GB even running Win XP SP3. Read somewhere that upgrading the BIOS may do the trick, but I can't find the correct BIOS, and GW has been no help. Hoping I can just upgrade the BIOS, which is 11 years old. Any help would be much appreciated! I don't know where to look, and searches have been fruitless. System info: OS Name Microsoft Windows XP Home Edition Version 5.1.2600 Service Pack 3 Build 2600 OS Manufacturer Microsoft Corporation System Name xxxx System Manufacturer Gateway System Model TABOR_II System Type X86-based PC Processor x86 Family 6 Model 7 Stepping 3 GenuineIntel ~596 Mhz BIOS Version/Date Intel Corp. 4W4SB0X0.15A.0015.P10, 9/28/1999 SMBIOS Version 2.1 BIOS info (from a free app I located): BIOS Type: Phoenix BIOS Date: September 28th 1999 BIOS ID: 4W4SB0X0.15A.0015.P10.9909281445-None BIOS OEM: 4W4SB0X0.15A.0015.P10 Chipset: Intel 440BX/ZX rev 3 SuperIO: SMC 70x or 80x rev 0 at port 0370 Manufacturer: Gateway Motherboard: WS440BX

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• Failures when copying between two external drives on the same controller

  - by Krzysztof Kosinski

  I'm encountering a weird problem which is present both on Ubuntu 9.10 and 10.04, on two different machines. When trying to copy between two external drives connected to the same USB controller, the transfer will randomly hang at some random time (after copying 300MB, 1GB, 10GB - it doesn't appear to depend on the dataset being copied). The hang appears to happen faster in 10.04. It appears to happen slower if both drives are connected to a hub. If the drives are connected to 2 distinct physical ports on the machine, the hang will be very fast. Hangs cannot be reproduced if: Data is copied from the first external drive to an internal drive, then to the second external drive Drives are connected to different USB controllers, for example the first one is connected to the built-in controller and the second one via an external PCMCIA controller. lspci says the first machine has an Intel ICH9 USB controller, the second an Intel ICH4. Is this a hardware problem, a kernel problem or a software issue? I used Nautilus when copying the files.

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• Google, Facebook et Yahoo testeront l'IPv6 en grandeur nature lors de la Journée Mondiale du protocole en juin 2011

  Mise à jour du 12.11.2010 par Katleen La transition de l'IPv4 à l'IPv6 pourrait rendre l'Internet instable pour une période pouvant atteindre plusieurs années, d'après Vint Cerf Vint Cerf, un pionnier en informatique que certains considèrent comme le père du Net s'est exprimé cette semaine concernant le changement de protocole des URLs. Ce changement, nécéssaire pour que le web puisse poursuivre son expansion, l'inquiète. Il en veut également aux entreprises, qui "ne voient pas assez loin" et qui n'ont pas prévu la migration plus tôt. En effet, il va falloir passer de l'IPv4 (qui sera vraisemblablement saturé en janvier 2012) à l'IPv6. Et la transition p...

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• Best Books of C

  - by Patrick

  Hi, I realy want to get high skills in C programming and I know that the best and only way is hard work and lots of practice. though I found so many tutorials and books available on the net about learning the C language. I'm just looking for one or two good books in C that I can learn from and get high skills in C. Anyone knows such a great book/books for C programming pls? (sorry for replication if the question exists already in the forum) Regards!

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• Why is Star Craft II lagging with these specs? [closed]

  - by Kev

  17.3" FULL HD (1920X1080) LED LCD w/nVIDIA GeForce® GT 425M w/1GB GDDR3 + Intel GMA HD4500 i also got the 640m core i7, i have 8 gb ram but for some damn reason, when there is a batle in progress it appears as if my graphics card or something is not powerful enough, shouldn't these specs be more than enough to handle star craft II? what could i do to improve my laptop? i also got the 64 bit os

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• What free Remote Desktop (server) solutions are there?

  - by Tao

  I know Ubuntu comes with a "Remote Desktop" option that appears to be a straightforward VNC server, and I'm trying to understand the alternatives. Here are the possibilities I've heard about so far: VNC VNC + SSH Tunnelling NX Server, free edition FreeNX NeatX X2Go X11 Forwarding over SSH xrdp I'm coming at this from a Windows user's perspective: To the best of my experience, RDP (aka Terminal Services) is a reasonably secure (barring mitm/server spoofing), efficient desktop sharing protocol with well-supported clients, that can be exposed to the internet when necessary without major fears of intrusion. To the best of my knowledge straight VNC is none of those things, which is where I get confused - why wouldn't a better desktop sharing technology be developed or used in the open-source world? I know VNC can be wrapped with SSH, but that seems beyond the reach of a casual user. X11 forwarding over SSH may be more or less efficient, I have no idea, but is definitely even more complicated, and doesn't (as far as I know) give you access to already-running stuff (no desktop sharing as such, just remote application running). So, I'd like any feedback/preferences amongst these or any other "Free" desktop sharing options, using these criteria and/or any others: Security (esp. for access across internet) Efficiency (bandwidth usage, responsiveness, etc) Free-ness, as in Speech (not sure where RDP or FreeNX lie for this) Free-ness, as in Beer (are there any commercial solutions with usable dependable free offerings?) Ease of use (server and client side) Cross-OS Client availability Cross-OS Server availability Support for independent sessions and shared (and/or "Console") sessions Ongoing support/maintenance/development Thanks!

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• ATI proprietary driver performance?

  - by Axel

  I'm about to (at least, want to..) buy a laptop with an ATI Radeon HD 4250, and I haven't a good opinion on ATI's drivers. How is the actual performance of the open/proprietary driver (currently I have nVidia, and I'm very satisfied)? The intended use for the laptop is: watching videos, programming in Java/PHP/maybe Qt... but, I like to know if Compiz runs well. Yes, I'm a hardcore (?) programmer that uses Compiz. :P Someone has this GPU? Experiences? Thoughts? Thanks! :D

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• BASIC on Ubuntu

  - by Tim Lytle

  Was asked by a new Ubuntu user - who also wants to learn about programming - what he could use to run BASIC code. He was working through a BASIC book before trying out Ubuntu, and he'd like to continue without having to switch back to Windows. It looks like there are a few BASIC packages in the standard repositories, as well as projects like Mono which may include some kind of BASIC support. What would be a good recommendation from the standard repositories - or from a deb package - for someone learning the basics of BASIC and new to Ubuntu?

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• Windows 7 Virtualized on Ubuntu Server

  - by garbagecollector

  I have an issue, we are moving to a production build server now. I need a virtual machine up and running on my Ubuntu 10.10 server edition. I have to setup and install various tool and plugins, on this windows 7 virtual machine as well The problem I am facing is how do I install windows 7 on this machine ( ubuntu 10.10 server) also, how am i supposed to gain access to it in order to install tools that are required on it. I would prefer virtual box as my tool of choice. Please and thank you.

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• /usr/lib/cups/backend/hp has failed

  - by edtechdev

  Ever since 10.04, I can't print to an HP laserjet p3005. I'm even using an entirely different computer now with a fresh install of 10.10. I've tried with and without the latest hplip. Recently, sometimes I can get it to print a few things, but eventually it always fails (usually when printing a pdf from the document viewer (also doesn't work with adobe pdf reader)). Sometimes it fails so bad the printer gives an error saying it needs to be turned off and on again. I can't seem to find a fix anywhere, I've googled all over the past year and tried every fix I could find. It does say that the /usr/lib/cups/backend/hp has failed. It also doesn't make a difference if I create the printer using hp-setup or ubuntu's own printing control panel. I delete and re-create the printer, no difference eventually. I use the default printer settings or custom settings, no difference. I can print perfectly find to a networked printer at home - an HP officejet 6310. It seems to be networked HP printers at work that I can't print to anymore (except occasionally right after re-installing the printer driver). What's the recommended way to install HP printer drivers and reset or clean out everything from before. Or where are the right logs to read or debug commands to do to find out what may be the real cause of the printing problems?

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• appstats broken filename in callstack

  - by Ray Yun

  When I visit appstats page and expand callstack, the file path has <path[N]> prefix. So click the file link then emit no such file or directory error. Stack: /google/appengine/datastore/datastore_rpc.py:951 make_rpc_call() /google/appengine/datastore/datastore_query.py:993 _make_query_result_rpc_call() /google/appengine/datastore/datastore_query.py:714 run_async() /google/appengine/datastore/datastore_query.py:685 run() /google/appengine/api/datastore.py:1281 GetBatcher() /google/appengine/api/datastore.py:1351 Get() /google/appengine/ext/db/init.py:1831 fetch() /google/appengine/ext/db/init.py:1778 get() /apps/fbapp/fbutil.py:232 oauth_load_fb_user() /apps/fbapp/fbutil.py:84 require_account() the error message for appengine source: [Errno 2] No such file or directory: u'/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/lib/ipaddr/google/appengine/datastore/datastore_rpc.py' the error message for my source: IOError [Errno 2] No such file or directory: u'/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/lib/antlr3/apps/fbapp/fbutil.py' I guess this was path problem and found some official comment from google. If your request handlers modify sys.path, you must make the same modifications to sys.path in appengine_config.py so the Appstats web interface can see all files. Actually I'm using appengine_django and two path was inserted to sys.path. I did it same again at appengine_django.py but also failed. Maybe some custom setting with appengine_config.py can solve this problem but doesn't figure out how to fix it. What can I do?

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• Custom styled select box

  - by Ivan

  Hi to all am trying to use javascript for custom styled select boxes from www.gerrendesign.com/entry_images/selectboxdemo.zip and as I have plenty entries inside one of select box I need to make but am stuck in creation of scrolling function. As this select boxes are compatible with almost all older and new browsers. I need only suggestion or solution how to add scroll in this linked/attached files above - if select box is populated with plenty of entries (example cities, states, or exchange rates...) Am stuck here... Thanks for your cooperation Ivan THIS IS CODE: $(document).ready(function(){ // first locate all of the select tags on the page and hide them $("select.changeMe").css('display','none'); //now, for each select box, run this function $("select.changeMe").each(function(){ var curSel = $(this); // get the CSS width from the original select box var gddWidth = $(curSel).css('width'); var gddWidthL = gddWidth.slice(0,-2); var gddWidth2 = gddWidthL - 28; var gddWidth3 = gddWidthL - 16; // build the new div structure var gddTop = '<div style="width:' + gddWidthL + 'px" class="selectME" tabindex="0"><div class="cornerstop"><div><div></div></div></div><div class="middle"><div><div><div>'; //get the default selected option var whatSelected = $(curSel).children('option:selected').text(); //write the default var gddFirst = '<div class="first"><span class="selectME gselected" style="width:'+ gddWidth2 + 'px;">'+ whatSelected +'</span><span id="arrowImg"></span><div class="clears"></div></div><ul class="selectME">'; // create a new array of div options from the original's options var addItems = new Array(); $(curSel).children('option').each( function() { var text = $(this).text(); var selVal = $(this).attr('value'); var before = '<li style="width:' + gddWidthL + 'px;"><a href="#" rel="' + selVal + '" tabindex="0" style="width:' + gddWidth3 + 'px;">'; var after = '</a></li>'; addItems.push(before + text + after); }); //hide the default from the list of options var removeFirst = addItems.shift(); // create the end of the div selectbox and close everything off var gddBottom ='</ul></div></div></div></div><div class="cornersbottom"><div><div></div></div></div></div>' //write everything after each selectbox var GDD = gddTop + gddFirst + addItems.join('') + gddBottom; $(curSel).after(GDD); //this var selects the div select box directly after each of the origials var nGDD = $(curSel).next('div.selectME'); $(nGDD).find('li:first').addClass("first"); $(nGDD).find('li:last').addClass('last'); //handle the on click functions - push results back to old text box $(nGDD).click( function(e) { var myTarA = $(e.target).attr('rel'); var myTarT = $(e.target).text(); var myTar = $(e.target); //if closed, then open if( $(nGDD).find('li').css('display') == 'none') { //this next line closes any other selectboxes that might be open $('div.selectME').find('li').css('display','none'); $(nGDD).find('li').css('display','block'); //if user clicks off of the div select box, then shut the whole thing down $(document.window || 'body').click( function(f) { var myTar2 = $(f.target); if (myTar2 !== nGDD) {$(nGDD).find('li').css('display','none');} }); return false; } else { if (myTarA == null){ $(nGDD).find('li').css('display','none'); return false; } else { //set the value of the old select box $(curSel).val(myTarA); //set the text of the new one $(nGDD).find('span.gselected').text(myTarT); $(nGDD).find('li').css('display','none'); return false; } } //handle the tab index functions }).focus( function(e) { $(nGDD).find('li:first').addClass('currentDD'); $(nGDD).find('li:last').addClass('lastDD'); function checkKey(e){ //on keypress handle functions function moveDown() { var current = $(nGDD).find('.currentDD:first'); var next = $(nGDD).find('.currentDD').next(); if ($(current).is('.lastDD')){ return false; } else { $(next).addClass('currentDD'); $(current).removeClass('currentDD'); } } function moveUp() { var current = $(nGDD).find('.currentDD:first'); var prev = $(nGDD).find('.currentDD').prev(); if ($(current).is('.first')){ return false; } else { $(prev).addClass('currentDD'); $(current).removeClass('currentDD'); } } var curText = $(nGDD).find('.currentDD:first').text(); var curVal = $(nGDD).find('.currentDD:first a').attr('rel'); switch (e.keyCode) { case 40: $(curSel).val(curVal); $(nGDD).find('span.gselected').text(curText); moveDown(); return false; break; case 38: $(curSel).val(curVal); $(nGDD).find('span.gselected').text(curText); moveUp(); return false; break; case 13: $(nGDD).find('li').css('display','none'); } } $(document).keydown(checkKey); }).blur( function() { $(document).unbind('keydown'); }); }); });

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• Proper way of deleting records with Codeigniter

  - by luckytaxi

  I came across another Stackoverflow post regarding Get vs Post and it made me think. With CI, my URL for deleting a record is http://domain.com/item/delete/100, which deletes record id 100 from my DB. The record_id is pulled via $this->uri->segment. In my model I do have a where clause that checks that the user is indeed the owner of that record. A user_id is stored in a session inside the DB. Is that good enough? My understanding is, POST should be used for one time modification for data and GET is for retrieving regards (e.g. viewing an item or permalink).

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• NHibernate returning duplicate object in child collections when using Fetch

  - by UpTheCreek

  When doing a query like this (using Nhibernate 2.1.2): ICriteria criteria = session.CreateCriteria<MyRootType>() .SetFetchMode("ChildCollection1", FetchMode.Eager) .SetFetchMode("ChildCollection2", FetchMode.Eager) .Add(Restrictions.IdEq(id)); I am getting multiple duplicate objects in some cartesian fashion. E.g. if ChildCollection1 has 3 elements, and ChildColection2 has 2 elements then I get results with each element in ChildColection1 one duplicated, and each element in ChildColection2 triplicated! This was a bit of a WTF moment for me... So how to do this correctly? Is using SetFetchMode like this only supported when specifying one collection? Am I just using it wrong (I've seen some references to results transformers, but imagined this would be simplier). Is this something that's different in NH3? Update: As per Felice's suggestion, I tried using the DistinctRootEntity transformer, but this is still returning duplicates. Code: ICriteria criteria = session.CreateCriteria<MyRootType>() .SetFetchMode("ChildCollection1", FetchMode.Eager) .SetFetchMode("ChildCollection2", FetchMode.Eager) .Add(Restrictions.IdEq(id)); criteria.SetResultTransformer(Transformers.DistinctRootEntity); return criteria.UniqueResult<MyRootType>();

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• Error after installing Classified Ad Module on Drupal 7

  - by Ams

  Hello, i just installed Classified Ad but after the installation i get this error: Notice: Undefined index: type in ed_classified_form_alter() (line 218 of /home3/amineamm/public_html/chrini/sites/all/modules/ed_classified/ed_classified.module). When i look up at the php code i can't figure out how to correct it. Here is my code: function ed_classified_form_alter(&$form, $form_state, $form_id) { module_load_include('inc', 'ed_classified', 'ed_classified_utils'); if ($form['type']['#value'] == EDI_CLASSIFIED_MODULE_NAME) { if ($form_id == 'ed_classified_node_form' && $form['attachments'] && _ed_classified_variable_get('alter_attachment_text', EDI_CLASSIFIED_VAR_DEF_ALTER_ATTACHMENT_TEXT) ) { // Don't allow the attachments block to be collapsed. $form['attachments']['#collapsed']=FALSE; $form['attachments']['#collapsible']=FALSE; // Enhance the help for classified ads. // NOTE: this is appropriate for the upload_image module enhancements only! $form['attachments']['#title']=t('Photo Attachments'); $form['attachments']['#description']= _ed_classified_variable_get('alter_attachment_text_description', t(EDI_CLASSIFIED_VAR_DEF_ALTER_ATTACHMENT_TEXT_DESCRIPTION)); } } } Any suggestion ?

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• Javascript Object/Array population question

  - by gnomixa

  Is there a difference between: var samples = { "TB10152254-001": { folderno: "TB10152254", ordno: "001", startfootage: "", endfootage: "", tagout: "Y" }, "TB10152254-002": { folderno: "TB10152254", ordno: "002", startfootage: "", endfootage: "", tagout: "Y" }, "TB10152254-003": { folderno: "TB10152254", ordno: "003", startfootage: "", endfootage: "", tagout: "Y" } }; AND var samples = new Array(); samples["TB10152254-001"] = { folderno: "TB10152254", ordno: "001", startfootage: "", endfootage: "", tagout: "Y"}; samples["TB10152254-002"] = { folderno: "TB10152254", ordno: "002", startfootage: "", endfootage: "", tagout: "Y" }; samples["TB10152254-003"] = { folderno: "TB10152254", ordno: "003", startfootage: "", endfootage: "", tagout: "Y" }; EDIT: I will re-phrase the question: How do I populate the hash dynamically? I can't do something like samples.TB10152254-003 because i TB10152254-003 is dynamic...so, is that even possible?

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• Java Thread Management and Application Flow

  - by user119179

  I have a Java application that downloads information (Entities) from our server. I use a Download thread to download the data. The flow of the download process is as follows: Log in - The user entity is downloaded Based on the User Entity, download a 'Community' entities List and Display in drop down Based on Community drop down selection, Download and show 'Org Tree' in a JTree Based on Node selection, download Category entities and display in drop down Based on Category selection, download Sub Category entities and display in drop down Based on Sub Category selection download a large data set and save it The download occurs in a thread so the GUI does not 'freeze'. It also allows me to update a Progress Bar. I need help with managing this process. The main problem is when I download entity data I have to find a way to wait for the thread to finish before attempting to get the entity and move to the next step in the app flow. So far I have used a modal dialog to control flow. I start the thread, pop up a modal and then dispose of the modal when the thread is finished. The modal/thread are Observer/Observable the thread does a set changed when it is finished and the dialog disposes. Displaying a modal effectively stops the flow of the application so it can wait for the download to finish. I also tried just moving all the work flow to Observers. All relevant GUI in the process are Observers. Each update method waits for the download to finish and then calls the next piece of GUI which does its own downloading. So far I found these two methods produce code that is hard to follow. I would like to 'centralize' this work flow so other developers are not pulling out their hair when they try to follow it. My Question is: Do you have any suggestions/examples where a work flow such as this can be managed in a way that produces code that is easy to follow? I know 'easy' is a relative term and I know my both my options already work but I would like to get some ideas from other coders while I still have time to change it. Thank you very much.

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• Nested instances in C#

  - by user32848

  I'm trying to translate some C++ code for a neural net into C#. I first took the C++ code, from a 1993 book, and ran it. Then translated it using the STL and it ran again. Now I'm trying to get it into C# with Visual Web Developer 2008 Express. The original code used "friend" classes and I'm just trying to do the same making everything "public". The following code compiles but only gives null references when run: public class ineuron { public Double weight, activation; public ineuron(Double set_wt) { weight = set_wt; } ... public class netwrk { public oneuron onrn; public ineuron in1, in2, in3, in4; public netwrk( Double inp_1, Double inp_2, Double inp_3, Double inp_4 ) { ineuron in1 = new ineuron(inp_1); ineuron in2 = new ineuron(inp_2); ... and later, in some code called by a button push: netwrk ntw = new netwrk(i_n1, i_n2, i_n3, i_n4); Unfortunately, trying to use: ntw.in1.activation etc. leads to null reference runtime errors. What am I forgetting to do? Barney

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• finding "line-breaks" in textarea that is word-wrapping ARABIC text

  - by Irfan jamal

  I have a string of text that I display in a textarea (right-to-left orientation). The user can resize the textarea dynamically (I use jquery for this) and the text will wrap as necessary. When the user hits submit, I will take that text and create an image using PHP, BUT before submitting I would like to know where the "line-breaks" or rather "word-wraps" occur. Everywhere I have looked so far only shows me how to process line-breaks on the php side. I want to make it clear that there ARE NO LINE-BREAKS. What I have is one LONG string that will be word-wrapped in different ways based on the width of the textarea set by the user. I can't use "columns" or any other standard width representation because I have a very complex arabic font that is actually composed of glyphs (characters) of numerous different widths. If anyone knows of a way of accessing where the word wraps occur (either in a textarea or a div if need-be), I'd really like to know. My only other solution is to actually store (in my DB) the width of every single character (somewhat tedious since there are over 200 characters in 600 different fonts, for a total of...some huge number). My hopes aren't high, but I thought I would ask. Thanks i. jamal

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• SQL-Calculate percentages from database table values

  - by Howard

  Hi, Im trying to calculate the percentages of selected fields from tables. Within the fields that data is numeric but I want to show the percentage value. Please help. private void btnpics_Click(object sender, EventArgs e) { try { myCon.Open(); string queryString = "SELECT FoodType.Description,FoodType.Calories, FoodType.Carbohydrate, FoodType.Fat, FoodType.Protein FROM [FoodType], [Meal] WHERE (Meal.UserID =" + userid.Text + ") AND (Meal.MealDate =" + date.Text + ");"; MessageBox.Show(queryString); loadDataGrid(queryString); } catch (Exception ex) { MessageBox.Show(ex.Message); } }

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• Java EE suitablity for a social network using Cassandra datastore ??

  - by Marcos

  We are in the process of making some important technology decisions for a social networking application. We're planning to have Cassandra(a NoSQL database to support efficient data storage). We would be using Hector(a Java client) to interact with Cassandra. 1.) Would Java EE be a good choice over PHP for a social networking application in terms of performance, scalabilty & complexities? 2.) Another possible implementation strategy, Is it suitable to have backend alone in Java and rest in PHP? 3.) What differences(as compared to PHP) it makes in terms of costs at various stages of application development, deployment and maintenance ? 4.) What are the things to keep in mind as we move along with Java development& deployment(as we are relatively new to the Java background) ? 5.) If you could list some major production deployments of similar type(social network) applications in Java. Thank you!

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• Storing a large list in isolatedStorage on WP7

  - by Ra

  I'm storing a List with around 3,000 objects in Isolatedstorage using Xml serialize. It takes too long to deserialize this and I was wondering if you have any recommendations to speed it up. The time is tolerable to deserialize up to 500 objects, but takes forever to deserialize 3000. Does it take longer just on the emulator and will be faster on the phone? I did a whole bunch of searching and some article said to use a binary stream reader, but I can't find it. Whether I store in binary or xml doesn't matter, I just want to persist the List. I don't want to look at asynchronous loading just yet...

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• Always importing too many classes... I think!

  - by Bill

  I have a basic problem with knowing which classes to import for a given application, renderer, AS package, mxml component, etc. There seems to be hundreds of classes (both mx and flash) and I'm never sure which one(s) to import... so I just keep adding import statements until the errors go away. Is there a reference somewhere that I don't know about? Or does this just come with experience? Also... does importing a load of classes actually make the file size larger or does Flex only import the classes used nregardless of what I specify? If it only uses what is needed, why wouldn't everyone just do: import mx.*;

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• Parser, send an argument/receive xml (receive already done/ send not)

  - by bruno

  public List<Afood> getFoodFromCat(String cat) { String resultado = ""; List<Afood> list = new ArrayList<Afood>(); try { URL xpto = new URL("http://10.0.2.2/webservice/nutrituga/get_food_by_cat.php"); HttpURLConnection conn; conn = (HttpURLConnection) xpto.openConnection(); conn.setDoInput(true); conn.connect(); InputStream is = conn.getInputStream(); DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance(); try { DocumentBuilder db = dbf.newDocumentBuilder(); Document doc = db.parse(is); NodeList nl = doc.getElementsByTagName("item"); // resultado = String.valueOf(nl.getLength()); for (int i = 0; i < nl.getLength(); i++) { Node n = nl.item(i); Node childNode = n.getFirstChild(); while (childNode != null) { if (childNode.getNodeType() == Node.ELEMENT_NODE) { if (childNode.getNodeName().equalsIgnoreCase( "NAME_FOOD")) { Node valor = childNode.getFirstChild(); // resultado = resultado + valor.getNodeValue(); list.add(new Afood(valor.getNodeValue(), "", (int) Math.round(Math.random()), 1, 1, 1, 1, 1, 1)); } } childNode = childNode.getNextSibling(); } } return list; } catch (ParserConfigurationException e1) { e1.printStackTrace(); } catch (SAXException e1) { e1.printStackTrace(); } catch (IOException e1) { e1.printStackTrace(); } } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } return list; } I have this function that receives a xml and copy it to the list. This is well implemented. What i want do to know, is to send a category (that i receive like an argument of the function) and receive only the food from that category. The server is ready to receive the category and to send the food from that category. What do i have to do to send the category and receive the correct xml?

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