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  • How do I recover my accidentally lost Windows partitions after installing Ubuntu?

    - by Totally newbie
    I have a Toshiba satellite A-200 laptop with a Vista OS on it with 4 NTFS partitions (C:) Vista (D:) Entertainment (E:) Work (F:) Sources and I wanted to start using Ubuntu instead. So I tried it first from the live CD and everything was OK and all the partitions were shown and working and so I decided to install Ubuntu to replace Vista on the (C:) drive. After I did that I can no longer find my folders and files on the (D:), (E:), (F:) partitions and the only file system that is shown is one 198 GB although my HDD is 320 GB. I can't access the lost data on the remaining 120 GB which I hope is still there and not totally lost I am now working from the live CD but I am unable to install testdisk. Can I recover the Vista partitions by the product recovery CD to get my laptop back to the factory settings? Can I recover the NTFS partitions using a recovery program for Windows or will that make the problem worse? I need these data badly as I don't have a backup for them.

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  • Ubuntu crashed during the update to 12.04, not I can't recover my files, help please

    - by mrah
    I'm pretty new to Linux and I've only installed Ubuntu as I couldn't afford to buy Windows, worked well and I liked it. But I chose to upgrade it to the newest version after a prompt. The update froze and the machine was unresponsive which forced me to hard reboot it. Now nothing seems to load and I've reached my wits end (mainly cos I'm lost in all the command lines). I've decided to try and recover my data from the hard drive, only two folders, by selecting the try Ubuntu option when I insert the OS CD into the machine. The problem I'm experiencing now is it won't let me copy my folders, I get a 'The folder contents could not be displayed. You do not have the permissions necessary to view the contents of "folder_name".' Does anyone know how I can recover this data?

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  • android application that visualize real time data

    - by matarsak
    I want to build and android app that visualize real time data , I set up a UDP channel that get the data , now I want to visualize it . I now that I can use openGL ES. but I have now back ground and in a few weeks I dont think that i'm able to learn that . what about android processing ? could it be used for extensive visualization task like this? or it's limited ? I heard it's not hard to learn that. any other option ?

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  • Partition Hard Drive For Data

    - by user211779
    Greetings ~ I am a new Linux/Ubuntu user. For various reasons (mostly my own ignorance) I am on my third install of Ubuntu 12.04. I want to partition the hard drive to create a drive for data and personal files in case I ever have to install again. I have been struggling all afternoon to make a gparted live USB. Tuxboot looked like the answer but I get an error message when using it. So, I am asking for help. Ultimately, I want to partition the hard drive for data and personal files. What do you recommend?

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  • How to bind Data to Dropdownlist in Kendo Ui Mobile

    - by dinesh Haraveer
    I have been using Kendo Mobile to develop an application, previously same application i have done in Kendo web,it's works fine.The main problem is that i have to bind data to two dropdownlist which the below code i have written,when my application is running it show an error like "Microsoft JScript runtime error: Object doesn't support property or method 'append'". in HTML <div id="forms" data-role="view" data-title="Form Elements" data-init="initForm"> <table> <tr> <td> <label style="margin-left: 20px"> Company:</label> </td> <td> <select id="ddlCompany" style="width: 200px"> <option>Select Company</option> </select> </td> <td class="style1"> <label style="margin-left: 20px"> Category:</label> </td> <td> <select id="ddlCategory" style="width: 200px"> <option>Select Category</option> </select> </td> <td> <label style="margin-left: 20px"> Product :</label> </td> <td> <select id="ddlProduct" style="width: 200px"> <option>Select Product</option> </select> </td> </tr> </table> </div> function initForm() { $.ajax({ type: "POST", contentType: "application/json; charset=utf-8", url: "FlashReportMobileWebService.asmx/GetCompany", dataType: "json", success: function (data) { for (i = 0; i < data.d.length; i++) { ddlCompany.append($("<option></option>").val(data.d[i].Company).html(data.d[i].Company)); }; $("#ddlCompany").kendoDropDownList(); } }); $.ajax({ type: "POST", contentType: "application/json; charset=utf-8", url: "FlashReportMobileWebService.asmx/ToCategoryDropDown", dataType: "json", success: function (data) { for (i = 0; i < data.d.length; i++) { ddlCategory.append($("<option></option>").val(data.d[i].Category).html(data.d[i].Category)); }; $("#ddlCategory").kendoDropDownList(); }, failure: function (msg) { alert(msg); } }); } $("#ddlCategory").change( function (e) { var ddlProduct= $("#ddlProduct"); var dataItem = $("#ddlCategory").val(); $.ajax({ type: "POST", contentType: "application/json; charset=utf-8", data: "{'Category':'" + dataItem + "'}", url: "FlashReportWebService.asmx/ToFillProductDropDown", dataType: "json", success: function (data) { ddlProduct.empty(); for (i = 0; i < data.d.length; i++) { ddlProduct.append($("<option></option>").val(data.d[i].ProductName).html(data.d[i].ProductName)); }; $("#ddlProduct").kendoDropDownList(); }, failure: function (msg) { alert(msg); } }); }); var app = new kendo.mobile.Application(document.body); thanks for reading this

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  • Using resize to getScript if above x pixels (jQuery)

    - by user1065573
    So I have an issue with this script. It basically is loading the script on any resize event. I have it working if lets say... - User has window size above 768 (getScipt() and content by .load() in that script) - Script will load (and content) - User for some reason window size goes below 768 (css hides #div) - User re-sizes again above 768, And does not load the script again! (css displays the div) Great. Works right. Now.. (for some cray reason) - User has window size below 768 (Does NOT getScript() or nothing) - User re-sizes above 768 and stops at any px (getScript and content) - User re-sizes again anything above 768 (It getScript AGAIN) I need it to only get script once. Ive used some code from here jQuery: How to detect window width on the fly? (edit - i found this, which he has the same issue of loading a script once.) Problem with function within $(window).resize - using jQuery And others i lost the links to :/ When i first found this problem I was using something like this, then i added the allcheckWidth() to solve problem. But it does not. var $window = $(window); function checkWidth() { var windowsize = $window.width(); ////// LETS GET SOME THINGS IF IS DESKTOP var $desktop_load = 0; if (windowsize >= 768) { if (!$desktop_load) { // GET DESKTOP SCRIPT TO KEEP THINGS QUICK $.getScript("js/desktop.js", function() { $desktop_load = 1; }); } else { } } ////// LETS GET SOME THINGS IF IS MOBILE if (windowsize < 768) { } } checkWidth(); function allcheckWidth () { var windowsize = $window.width(); //// IF WINDOW SIZE LOADS < 768 THEN CHANGES >= 768 LOAD ONCE var $desktop_load = 0; if (!$desktop_load) { if (windowsize < 768) { if ( $(window).width() >= 768) { $.getScript("js/desktop.js", function() { $desktop_load = 1; }); } } } } $(window).resize(allcheckWidth); Now im using something like this which makes more sense? $(function() { $(window).resize(function() { var $desktop_load = 0; //Dekstop if (window.innerWidth >= 768) { if (!$desktop_load) { // GET DESKTOP SCRIPT TO KEEP THINGS QUICK $.getScript("js/desktop.js", function() { $desktop_load + 1; }); } else { } } if (window.innerWidth < 768) { if (window.innerWidth >= 768) { if (!$desktop_load) { // GET DESKTOP SCRIPT TO KEEP THINGS QUICK $.getScript("js/desktop.js", function() { $desktop_load + 1; }); } else { } } } }) .resize(); // trigger resize event }) Ty for future response. Edit - To give an example, in desktop.js i have a gif that loads before "abc" content, that gets inserted by .load(). On resize this gif will show up and the .load() in desktop.js will fire again. So if getScript was only being called once, it should not be doing anything again in desktop.js. Confusing?

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  • Data format for content heavy iPhone app - Plist or XML?

    - by Toby
    Hello, I'm building an iPhone app that is essentially a book, it will be bundled with a lot of text-heavy content. I considered bundling the data as XML and load it when the application starts but the XML would contain a lot of nested structures and be a bit of a pain to parse. Would it be better to use a plist? I'm concerned about memory usage and plists are loaded entirely into memory - can they be parsed in chunks? Is there a maximum size to a plist and how efficient are they? I'm not sure how big the bundled content is going to be yet but I should imagine it could be anywhere from 500k to 4MB. Thanks in advance.

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  • not able to show the file from the array...

    - by sjl
    Hi, i'm trying to do an image gallery. i was not able to display the thumbnails stored in the array. instead it keep showing the same thumbnails. anyone can help? very much appreciated.. // Arrays that store the filenames of the text, images and thumbnails var thumbnails:Array = [ "images/image1_thumb.jpg", "images/image2_thumb.jpg", "images/image3_thumb.jpg", "images/image4_thumb.jpg", "images/image5_thumb.jpg", "images/image6_thumb.jpg", "images/image7_thumb.jpg" ]; var images:Array = [ "images/image1.jpg", "images/image2.jpg", "images/image3.jpg", "images/image4.jpg", "images/image5.jpg", "images/image6.jpg", "images/image7.jpg" ]; var textFiles:Array = [ "text/picture1.txt", "text/picture2.txt", "text/picture3.txt", "text/picture4.txt", "text/picture5.txt", "text/picture6.txt", "text/picture7.txt" ]; // NOTE: thumbnail images are 60 x 43 pixels in size // loop through the array and create the thumbnails and position them vertically for (var i:int = 0; i <7; i++) { // create an instance of MyUIThumbnail var thumbs:MyUIThumbnail = new MyUIThumbnail(); // position the thumbnails on the left vertically thumbs.y = 43 * i;/*** FILL IN THE BLANK HERE ***/ // store the corresponding full size image name in the thumbnail // use the "images" array thumbs.image = "images/image1.jpg"; thumbs.image = "images/image2.jpg"; thumbs.image = "images/image3.jpg"; thumbs.image = "images/image4.jpg"; thumbs.image = "images/image5.jpg"; thumbs.image = "images/image6.jpg"; thumbs.image = "images/image7.jpg"; // store the corresponding text file name in the thumbnail // use the "textFiles" array thumbs.textFile = "text/picture1.txt"; thumbs.textFile = "text/picture2.txt"; thumbs.textFile = "text/picture3.txt"; thumbs.textFile = "text/picture4.txt"; thumbs.textFile = "text/picture5.txt"; thumbs.textFile = "text/picture6.txt"; thumbs.textFile = "text/picture7.txt"; thumbs.imageFullSize = full_image_mc ; // store the reference to the textfield in the thumbnail thumbs.infoText = info; // load and display the thumbnails // use the "thumbnails" array thumbs.loadThumbnail("images/image1_thumb.jpg"); thumbs.loadThumbnail("images/image2_thumb.jpg"); thumbs.loadThumbnail("images/image3_thumb.jpg"); thumbs.loadThumbnail("images/image4_thumb.jpg"); thumbs.loadThumbnail("images/image5_thumb.jpg"); thumbs.loadThumbnail("images/image6_thumb.jpg"); thumbs.loadThumbnail("images/image7_thumb.jpg"); addChild(thumbs); } below is my thumbanail. as package{ import fl.containers.; import flash.events.; import flash.text.; import flash.net.; import flash.display.*; public class MyUIThumbnail extends MovieClip { public var image:String = ""; public var textFile:String = ""; var loader:UILoader = new UILoader(); public var imageFullSize:MyFullSizeImage; // reference to loader to show the full size image public var infoText:TextField; // reference to textfield that displays image infoText var txtLoader:URLLoader = new URLLoader(); // loader to load the text file public function MyUIThumbnail() { buttonMode = true; addChild(loader); this.addEventListener(MouseEvent.CLICK, myClick); txtLoader.addEventListener(Event.COMPLETE, displayText); loader.addEventListener(Event.COMPLETE, thumbnailLoaded); } public function loadThumbnail(filename:String):void { loader.source = filename; preloader.trackLoading(loader); } function myClick(e:MouseEvent):void { // load and display the full size image imageFullSize.loadImage("my_full_mc"); // load and display the text textLoad("info"); } function textLoad(file:String) { // load the text description from the text file loader.load(new URLRequest(textFile)); } function displayText(e:Event) { //display the text when loading is completed addChild(infoText); } function thumbnailLoaded(e:Event) { loader.width = 60; loader.height = 43; } } }

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  • Oracle Application Server Performance Monitoring and Tuning (CPU load high)

    - by Berkay
    Oracle Application Server Performance Monitoring and Tuning (CPU load high) i have just hired by a company and my boss give me a performance issue to solve as soon as possible. I don't have any experience with the Java EE before at the server side. Let me begin what i learned about the system and still couldn't find the solution: We have an Oracle Application Server (10.1.) and Oracle Database server (9.2.), the software guys wrote a kind of big J2EE project (X project) using specifically JSF 1.2 with Ajax which is only used in this project. They actively use PL/SQL in their code. So, we started the application server (Solaris machine), everything seems OK. users start using the app starting Monday from different locations (app 200 have user accounts,i just checked and see that the connection pool is set right, the session are active only 15 minutes). After sometime (2 days) CPU utilization gets high,%60, at night it is still same nothing changed (the online user amount is nearly 1 or 2 at this time), even it starts using the CPU allocated for other applications on the same server because they freed If we don't restart the server, the utilization becomes %90 following 2 days, application is so slow that end users starts calling. The main problem is software engineers say that code is clear, and the System and DBA managers say that we have the correct configuration,the other applications seems OK why this problem happens only for X application. I start copying the DB to a test platform and upgrade it to the latest version, also did in same with the application server (Weblogic) if there is a bug or not. i only tested by myself only one user and weblogic admin panel i can track the threads and dump them. i noticed that there are some threads showing as a hogging. when i checked the manuals and control the trace i see that it directs me the line number where PL/SQL code is called from a .java file. The software eng. says that yes we have really complex PL/SQL codes but what's the relation with Application server? this is the problem of DB server, i guess they're right... I know the question has many holes, i'd like to give more in detail but i appreciate the way you guide me. Thanks in advance ... Edit: The server both in CPU and Memory enough to run more complex applications

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  • DCHP and Router load testing

    - by John H
    I manage a campground wifi network with an average of 10 - 60 active users. I have encountered issues where the router starts acting flaky (failing to assign DHCP or failing to pass traffic) without any clear warning (low cpu utilization, etc). I upgraded the router a couple times and ended up with a Netgear ProSafe VPN router that seems to be handling the traffic. The interesting thing is that the Netgear has lower specs than the Buffalo router it replaced, indicating the issue is with the DD-WRT firmware. While I'll be pursuing this issue on the dd-wrt forums, I need a way to test routers. My vision is having 1-2 computers connected on the LAN side and 1-2 computers connected on the WAN side. I want the LAN computers to be generating various type of traffic and connections, as well as requesting DCHP addresses. A few notes: The wireless aspect should be a non-issue. Most clients would connect to a wireless bridge and come into the router through a network cable. I had a monitoring server with Nagios running check_dhcp against the router. This server was connected directly by a network cable, eliminating wifi bridges and other devices from the equation. This question is somewhat related, but not exactly: Load testing wireless LANs I am going to look at IxChariot. While I'd ideally like to use a 1 computer on each side running Linux and preferably free software, I can entertain running Windows, multiple computers, or non-free software. Total bandwidth doesn't seem to be the issue. I can transfer large files all day. Even on the busiest days, the users seemed to only pull ~5Mbps. There is very little "LAN to LAN traffic" and most of it might never have reached the main router. The issue I need to test for seems to be tied to active users, or more appropriately, active sessions. I know active users or active clients is a meaningless term from a router standpoint and wouldn't mind having more appropriate terms to use. Summary: I need a way to test a routers ability in handling traffic from a large number of clients. My current strategy is to purchase a router, deploy it, and see how it fails in the live environment.

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  • Ext.data.Store, Javascript Arrays and Ext.grid.ColumnModel

    - by Michael Wales
    I am using Ext.data.Store to call a PHP script which returns a JSON response with some metadata about fields that will be used in a query (unique name, table, field, and user-friendly title). I then loop through each of the Ext.data.Record objects, placing the data I need into an array (this_column), push that array onto the end of another array (columns), and eventually pass this to an Ext.grid.ColumnModel object. The problem I am having is - no matter which query I am testing against (I have a number of them, varying in size and complexity), the columns array always works as expected up to columns[15]. At columns[16], all indexes from that point and previous are filled with the value of columns[15]. This behavior continues until the loop reaches the end of the Ext.data.Store object, when the entire arrays consists of the same value. Here's some code: columns = []; this_column = []; var MetaData = Ext.data.Record.create([ {name: 'id'}, {name: 'table'}, {name: 'field'}, {name: 'title'} ]); // Query the server for metadata for the query we're about to run metaDataStore = new Ext.data.Store({ autoLoad: true, reader: new Ext.data.JsonReader({ totalProperty: 'results', root: 'fields', id: 'id' }, MetaData), proxy: new Ext.data.HttpProxy({ url: 'index.php/' + type + '/' + slug }), listeners: { 'load': function () { metaDataStore.each(function(r) { this_column['id'] = r.data['id']; this_column['header'] = r.data['title']; this_column['sortable'] = true; this_column['dataIndex'] = r.data['table'] + '.' + r.data['field']; // This display valid information, through the entire process console.info(this_column['id'] + ' : ' + this_column['header'] + ' : ' + this_column['sortable'] + ' : ' + this_column['dataIndex']); columns.push(this_column); }); // This goes nuts at columns[15] console.info(columns); gridColModel = new Ext.grid.ColumnModel({ columns: columns });

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  • iPhone Core Data Lightweight Migration error: reason = "Can't find model for source store";

    - by tul697
    Steps taken: 1. Added Data Model version: Changed my XXX.xcdatamodel to XXX.xcdatamodeId with Design - Data Model - Add Model Version. Set the new XXX 2.xcdatamodel as current version Added an attribute to XXX 2.xcdatamodel Added NSMigratePersistentStoresAutomaticallyOption and NSInferMappingModelAutomaticallyOption like most tutorials, I added the option in the addPersistentStoreWithType. ran the code and I got this error: Unresolved error Error Domain=NSCocoaErrorDomain Code=134130 UserInfo=0x146bb80 "Operation could not be completed. (Cocoa error 134130.)", { URL = file://localhost/Users/tleung/Library/Application%20Support/iPhone%20Simulator/3.0/Applications/B585CDFC-17C3-4A44-84E2-0B75893C46B8/Documents/favorites.sqlite; metadata = { NSPersistenceFrameworkVersion = 241; NSStoreModelVersionHashes = { City = <70ea1f9f aaa9af29 52d2bfe4 3071d97f 8224f765 d69928d5 e5844120 52742a35; StationStore = <40d8093a 1d7d00ec 178b4374 36dfc137 ccfa3a88 87e2d467 69e8ae7e d4c49dbb; }; NSStoreModelVersionHashesVersion = 3; NSStoreModelVersionIdentifiers = ( ); NSStoreType = SQLite; NSStoreUUID = "9DD342A6-1F68-4997-A097-096DC96D7BF3"; }; reason = "Can't find model for source store"; } I've also tried NSString *path = [[NSBundle mainBundle] pathForResource:@"YOURDB" ofType:@"momd"]; NSURL *momURL = [NSURL fileURLWithPath:path]; managedObjectModel = [[NSManagedObjectModel alloc] initWithContentsOfURL:momURL]; as suggested by other posts with no success. It seems that it can't find ANY of my models... anyone have any idea?

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  • iPhone SDK Core Data: Fetch all entities with a nil relationship?

    - by Harkonian
    I have a core data project that has Books and Authors. In the data model Authors has a to-many relationship to Books and Books has a 1-1 relationship with Authors. I'm trying to pull all Books that do not have an Author. No matter how I try it, no results are returned. In my predicate I've also tried = NIL, == nil, == NIL. Any suggestions would be appreciated. // fetch all books without authors - (NSMutableArray *)fetchOrphanedBooks { NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init]; NSEntityDescription *entity = [NSEntityDescription entityForName:@"Book" inManagedObjectContext:self.managedObjectContext]; [fetchRequest setEntity:entity]; [fetchRequest setFetchBatchSize:20]; NSPredicate *predicate = [NSPredicate predicateWithFormat:@"author = nil"]; [fetchRequest setPredicate:predicate]; NSSortDescriptor *sortDescriptor = [[NSSortDescriptor alloc] initWithKey:@"name" ascending:NO]; NSArray *sortDescriptors = [[NSArray alloc] initWithObjects:sortDescriptor, nil]; [fetchRequest setSortDescriptors:sortDescriptors]; NSString *sectionKey = @"name";//nil; NSFetchedResultsController *aFetchedResultsController = [[NSFetchedResultsController alloc] initWithFetchRequest:fetchRequest managedObjectContext:managedObjectContext sectionNameKeyPath:sectionKey cacheName:nil]; BOOL success = [aFetchedResultsController performFetch:nil]; NSMutableArray *orphans = nil; // this is always 0 NSLog(@"Orphans found: %i", aFetchedResultsController.fetchedObjects.count); if (aFetchedResultsController.fetchedObjects.count > 0) { orphans = [[NSMutableArray alloc] init]; for (Note *note in aFetchedResultsController.fetchedObjects) { if (note.subject == nil) { [orphans addObject:note]; } } } [aFetchedResultsController release]; [fetchRequest release]; [sortDescriptor release]; [sortDescriptors release]; return [orphans autorelease]; }

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  • How to pass binary data between two apps using Content Provider?

    - by Viktor
    I need to pass some binary data between two android apps using Content Provider (sharedUserId is not an option). I would prefer not to pass the data (a savegame stored as a file, small in size < 20k) as a file (ie. overriding openFile()) since this would necessitate some complicated temp-file scheme to cope with concurrency with several content provider accesses and a running game. I would like to read the file into memory under a mutex lock and then pass the binary array in the simplest way possible. How do I do this? It seems creating a file in memory is not a possibility due to the return type of openFile(). query() needs to return a Cursor. Using MatrixCursor is not possible since it applies toString() to all stored objects when reading it. What do I need to do? Implement a custom Cursor? This class has 30 abstract methods. Do I read the file, put it in a SQLite db and return the cursor? The complexity of this seemingly simple task is mindboggling.

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  • What issues to consider when rolling your own data-backend for Silverlight / AJAX on non-ASP.NET ser

    - by Edward Tanguay
    I have read-only Silverlight and AJAX apps which read static text and XML files from a PHP/Apache server, which works very nicely with features such as asynchronous loading, lazy-loading only what I need for each page, loading in the background, developed a little query language to get a PHP script to create custom XML files etc. it's pragmatic read-only REST, and all works fast and fine for read-only sites. Now I want to also add the ability to write data from these apps to a database on the same PHP/Apache server. For those of you who have built similar data-access layers, what do I need to consider while building this, especially regarding security so that not just any client can write and alter my database, e.g.: check HTTP_USER_AGENT for security check REMOTE_ADDR for security require a special code for security, perhaps a list of TAN codes (such as banks use for online transactions) each which can only be used once, both the client and server have these I wonder if there is some kind of standard REST query I should lean on for e.g. building SQL-like statements in the URL parameters, e.g. http://www.thedatalayersite.com/query?insertinto=customers&... Any thoughts, notes from experience, ideas, gotchas, especially ideas on tightening down security in this endeavor would be helpful.

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  • Can you have a Dynamic Data Field which consists of a list of fields?

    - by Telos
    This is a purely theoretical question (at least until I start trying to implement it) but here goes. I wrote a web form a long time ago which has a configurable section for getting information. Basically for some customers there are no fields, for other customers there are up to 20 fields. I got it working by dynamically creating the fields at just the right time in the page lifecycle and going through a lot of headaches. 2 years later, I need to make some pretty big updates to this web form and there are some nifty new technologies. I've worked with ASP.NET Dynamic Data just a bit and, well, I half-crazed plan just occurred to me: The Ticket object has a one-to-many relationship to ExtendedField, we'll call that relationship Fields for brevity. Using that, the idea would be to create a FieldTemplate that dynamically generated the list of fields and displayed it. The big questions here would probably be: 1) Can a single field template resolve to multiple web controls without breaking things? 2) Can dynamic data handle updating/inserting multiple rows in such a fashion? 3) There was a third question I had a few minutes ago, but coworkers interrupted me and I forgot. So now the third question is: what is the third question? So basically, does this sound like it could work or am I missing a better/more obvious solution?

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  • How do I populate a MEF plugin with data that is not hard coded into the assembly?

    - by hjoelr
    I am working on a program that will communicate with various pieces of hardware. Because of the varied nature of the items it communicates and controls, I need to have a different "driver" for each different piece of hardware. This made me think that MEF would be a great way to make those drivers as plugins that can be added even after the product has been released. I've looked at a lot of examples of how to use MEF, but the question that I haven't been able to find an answer to is how to populate a MEF plugin with external data (eg. from a database). All the examples I can find have the "data" hard-coded into the assembly, like the following example: [Export( typeof( IRule ) )] public class RuleInstance : IRule { public void DoIt() {} public string Name { get { return "Rule Instance 3"; } } public string Version { get { return "1.1.0.0"; } } public string Description { get { return "Some Rule Instance"; } } } What if I want Name, Version and Description to come from a database? How would I tell MEF where to get that information? I may be missing something very obvious, but I don't know what it is. Thanks! Joel

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  • Why is Core Data not persisting these changes to disk?

    - by scott
    I added a new entity to my model and it loads fine but no changes made in memory get persisted to disk. My values set on the car object work fine in memory but aren't getting persisted to disk on hitting the home button (in simulator). I am using almost exactly the same code on another entity in my application and its values persist to disk fine (core data - sqlite3); Does anyone have a clue what I'm overlooking here? Car is the managed object, cars in an NSMutableArray of car objects and Car is the entity and Visible is the attribute on the entity which I am trying to set. Thanks for you assistance. Scott - (void)viewDidLoad { myAppDelegate* appDelegate = (myAppDelegate*)[[UIApplication sharedApplication] delegate]; NSManagedObjectContext* managedObjectContex = appDelegate.managedObjectContext; NSFetchRequest* request = [[NSFetchRequest alloc] init]; NSEntityDescription* entity = [NSEntityDescription entityForName:@"Car" inManagedObjectContext:managedObjectContex]; [request setEntity:entity]; NSSortDescriptor* sortDescriptor = [[NSSortDescriptor alloc] initWithKey:@"Name" ascending:YES]; NSArray* sortDescriptors = [[NSArray alloc] initWithObjects:sortDescriptor, nil]; [request setSortDescriptors:sortDescriptors]; [sortDescriptors release]; [sortDescriptor release]; NSError* error = nil; cars = [[managedObjectContex executeFetchRequest:request error:&error] mutableCopy]; if (cars == nil) { NSLog(@"Can't load the Cars data! Error: %@, %@", error, [error userInfo]); } [request release]; } - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath*)indexPath { Car* car = [cars objectAtIndex:indexPath.row]; if (car.Visible == [NSNumber numberWithBool:YES]) { car.Visible = [NSNumber numberWithBool:NO]; [tableView cellForRowAtIndexPath:indexPath].accessoryType = UITableViewCellAccessoryNone; } else { car.Visible = [NSNumber numberWithBool:YES]; [tableView cellForRowAtIndexPath:indexPath].accessoryType = UITableViewCellAccessoryCheckmark; } }

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