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Articles indexed Wednesday March 31 2010

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  • How to edit the code table for one row only?

    - by TomatoSandwich
    I understand that dw-control.Object.columnname.Values("Red~tR/Blue~tB) changes columnname's values for all rows, but is there code that can just change the dropdown values of a code table for specific row/s? I've tried dw-control.Object.columnname[row].Values but I get R0039 in response :(

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  • how to write re-usable views in django?

    - by rz
    These are the techniques that I use regularly to make my views reusable: take the template_name as an argument with a default take an optional extra_context which defaults to empty {} right before the template is rendered the context is updated with the extra_context for further re-usability, call any callable in extra_context.values() whenever the view deals with a queryset, there is a queryset argument with a default whenever the view needs a particular object from the ORM, it attempts to fetch it using any "id" parameter in several ways (e.g. as a slug, as a database id) (this may be a bad practice...) First, Should I add anything to my list? Should I remove anything from my list? The items accommodates a large number of cases. However, whenever an app extends a model of another in some way (e.g. adding a field or changing the behavior in some way) I end up writing my own views and only reusing the model. Is this normal?

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  • Windows 7 Activation with Bootcamp and VMWare

    - by Jason Hernandez
    I have windows 7(64) installation setup on a Boot Camp partition on my MacBook Pro 13". I also access this partition through VMware hosted by OS X (snow leopard). Every time I switch between VMware and Boot Camp windows says that it needs to be re-activated because of hardware or driver changes. I've tried wmware KB KB 1003426 to no avail. Edo Thanks, Jason Edit, I am using the most recent VMware and tools. I've tried "KB 1004917" as well. No Dice. I'm considering re-installing at this point.

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  • What happens to an ActiveX control (COleControl) after the call to OnDestroy() ?

    - by richj
    I have an ActiveX control written in C++ that runs in Internet Explorer 8. Most of the time (approx 90%) when the tab or browser containing the control is closed, there is an access violation like this: The thread 'Win32 Thread' (0x1bf0) has exited with code 0 (0x0). Unhandled exception at 0x77b3b9fd in iexplore.exe: 0xC0000005: Access violation reading location 0x65007408. The access violation occurs after the call to OnDestroy() but before the call to the control's destructor. The debug output says: No symbols are loaded for any call stack frame. The source code cannot be displayed. None of my code is present in the stacktrace, although perhaps the heap was corrupted at some earlier point during execution. What lifecycle events does an ActiveX control receive between the call to OnDestroy() and the control's destructor?

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  • Programming tests: are they relevant?

    - by BlackVoid
    Do online programming tests have any value (except for providing an evidence to potential employers) in terms of evaluating your knowledge, or a they too broad or too narrow in general? For examples, brainbench.com and similar websites. From my experience I have never found myself scoring particularly high, although I have many years of commercial experience and is doing great at work. These tests mostly refer to things I have never worked with (WebForms or ADO .Net, who works with ADO .Net directly anyway?), yet these tests claim to be C# tests. If you were hiring a programmer, would you consider online tests as an evidence of real skill?

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  • Can not add a animation to a UIImageView:

    - by Flocked
    Hello, Im trying to add a animation to a UIImageView, but it always fails. Why? Here is the code: UIImage *newImage = UIGraphicsGetImageFromCurrentImageContext(); animationImage = [[UIImageView alloc]initWithImage:newImage]; [self.view addSubview:animationImage]; CATransition *animation = [CATransition animation]; [animation setDelegate:self]; [animation setDuration:0.35]; [animation setTimingFunction:UIViewAnimationCurveEaseInOut]; animation.type = @"pageCurl"; animation.fillMode = kCAFillModeForwards; animation.endProgress = 0.58; [animation setRemovedOnCompletion:NO]; [[animationImage layer] addAnimation:animation forKey:@"pageCurlAnimation"];

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  • Loading .png image from array of uint8_t into OpenGL ES texture

    - by unknownthreat
    Normally, when we want to load a texture for OpenGL ES with .png, we simply add the .png images into XCode. The .png files will be altered for optimization by XCode and these altered png files can loaded into OpenGL ES texture during the runtime. However, what I am trying to do is quite different. I am trying to load a .png file that is not from the prebuilt/compile. The png file will be transmitted externally from UDP, and it will be in the form of array of bytes. I am very sure that the png is transferred correctly, but when it comes to displaying the png image in the form of the OpenGL ES texture, the image somehow shows incorrectly. The colors that are being sent are presented but the positions are somehow very incorrect. However, the position of the colors still retain some aspects of the original position. Here: The left image shows the original .png, while the right shows the png being displayed on iPhone using OpenGL ES Texture. It looks more like the png data is not being decoded or incorrectly processed. Below is OpenGL ES code for turning the image into texture: - (void) setTextureFromImageByte: (uint8_t*)imageByte{ if (self = [super init]){ NSData* imageData = [[NSData alloc] initWithBytes: imageByte length: imageLength]; UIImage* img = [[UIImage alloc] initWithData: imageData]; CGImageRef image = img.CGImage; int width = 512; int height = 512; if (image){ int tempWidth = (int)width, tempHeight = (int)height; if ((tempWidth & (tempWidth - 1)) != 0 ){ NSLog(@"CAUTION! width is not power of 2. width == %d", tempWidth); }else if ((tempHeight & (tempHeight - 1)) != 0 ){ NSLog(@"CAUTION! height is not power of 2. height == %d", tempHeight); }else{ void *spriteData = calloc(width * 4, height * 4); CGContextRef spriteContext = CGBitmapContextCreate(spriteData, width, height, 8, width*4, CGImageGetColorSpace(image), kCGImageAlphaPremultipliedLast); CGContextDrawImage(spriteContext, CGRectMake(0.0, 0.0, width, height), image); CGContextRelease(spriteContext); glBindTexture(GL_TEXTURE_2D, 1); glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 320, 435, GL_RGBA, GL_UNSIGNED_BYTE, spriteData); free(spriteData); } }else NSLog(@"ERROR: Image not loaded..."); [img release]; [imageData release]; } } So does anyone knows how to deal with this? Is it because of iPhone only accepts altered png from XCode? What can we do in this case in order to make the png image be able to display correctly?

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  • Pros and Cons of Different macro function / inline methods in C

    - by Robert S. Barnes
    According to the C FAQ, there are basically 3 practical methods for "inlining" code in C: #define MACRO(arg1, arg2) do { \ /* declarations */ \ stmt1; \ stmt2; \ /* ... */ \ } while(0) /* (no trailing ; ) */ or #define FUNC(arg1, arg2) (expr1, expr2, expr3) To clarify this one, the arguments are used in the expressions, and the comma operator returns the value of the last expression. or using the inline declaration which is supported as an extension to gcc and in the c99 standard. The do { ... } while (0) method is widely used in the Linux kernel, but I haven't encountered the other two methods very often if at all. I'm referring specifically to multi-statement "functions", not single statement ones like MAX or MIN. What are the pros and cons of each method, and why would you choose one over the other in various situations?

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  • Asp.net MVC error with custom HttpModule

    - by Robert Koritnik
    I have a custom authentication HttpModule that is pretty strait forward. But I want it to run only for managed requests (and not for static ones). Asp.net MVC automatically adds configuration section for IIS7 web server: <system.webServer> <validation validateIntegratedModeConfiguration="false" /> <modules runAllManagedModulesForAllRequests="true"> <remove name="ScriptModule" /> <remove name="UrlRoutingModule" /> <add name="ScriptModule" preCondition="managedHandler" type="System.Web.Handlers.ScriptModule,..." /> <add name="UrlRoutingModule" type="System.Web.Routing.UrlRoutingModule,..." /> </modules> <handlers> ... </handlers> </system.webServer> When I add my own module I also set its preCondition="managedHandler", but since there's runAllManagedModulesForAllRequests="true" on parent <module> element my preCondition is ignored by design (as I read on MSDN). When I try to set though: <modules runAllManagedModulesForAllRequests="false"> I get this error: [image no longer valid] What else (which other module) do I have to set in web.config to make it work with this setting: <modules runAllManagedModulesForAllRequests="false">

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  • Where I Am Speaking Soon

    - by Tim Murphy
    Open XML and document generation has been my focus lately.  With that being the case I will be speaking on the subject in the near future at the following event. Chicago Code Camp – May 1 Chicago Architects Group – June 15 Lake Count .NET User Group – June 17 I hope to see you at one (or more) of these events. del.icio.us Tags: speaking,Office Open XML,OOXML,Document Generation

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  • Is Linux Virtual Server old, or is it standing still?

    - by Vimvq1987
    Based on this question: http://serverfault.com/questions/124905/widely-used-load-balancing-solutions, LVS may be the right solution for my problem. But when I went to its homepage http://www.linuxvirtualserver.org/, I found that LVS has been updated since Nov, 2008. The world's moving fast, and I don't know if LVS was obsolete or not. Is LVS standing still, or there're some better solutions to replace it? Thank you so much.

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  • Looking for USB Network Attached Storage (NAS) Adapter that supports multiple drives, NTFS/FAT32 fil

    - by braveterry
    I'm looking for a NAS Adapter that supports attaching multiple USB devices to the network. Here's what I'd like to see in a NAS adapter: Under $100.00. Support for multiple devices. This can be through a USB hub or through multiple USB connectors on the device itself. Bittorrent support would be nice, but this isn't a deal-breaker. Filesystem support for at least NTFS or FAT32. I'd prefer to not have to reformat to use the device, but this is also not a deal-breaker. Here is what I am NOT looking for: I'm NOT looking for a NAS enclosure. I already have a couple of spare external USB drives that I'd like to use. I'm NOT looking for a networked USB hub like the one mentioned here. Network USB hubs only allow access to a drive from one PC at a time. I'm NOT looking for a wireless router with a NAS built in. I already have a wireless router, and I'd rather not go through the hassle of replacing it if possible. What I've looked at so far PogoPlug: This supports multiple devices via a USB hub, but there's not Bittorrent support. It's $99.00, so I may end up going with this and hope that they patch in Bittorrent support later. Addonics NAS Adapter: This supports only one device per adapter, so it's a non-starter. SimpleNET NAS Head USB 2.0 Portable Dongle: I'm not 100% sure this supports multiple devices. Plus there doesn't seem to be any Bittorrent support. I'll try to update this post as I explore other devices.

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  • How can I copy a VMware Fusion virtual machine to a FAT32 partition?

    - by Michael Prescott
    I created the virtual machine on a host running OS X. I then moved the machine to a FAT32 partition on an external drive. It moved the first time without error. Then I moved it from the external drive to a host running Ubuntu 9.10. I had to move to a FAT32 partition first because Ubuntu doesn't recognize Mac OS Extended partitions on the drive. So, the virtual machine (vm) ran on the ubuntu host for a while and then I moved it back to the FAT32 partition and from there back to the OS X host. I worked on the vm for a while on the OS X host and then attempted to move it back to the FAT32 partition. I get the following system error: The Finder can’t complete the operation because some data in “my-virtual-machine” can’t be read or written. (Error code -36) Interestingly, I can move the file to another OS X partition, just not FAT32. I also perused VMware's forums and found advice to set permissions on all files and folders to 777. I did this, but have had no success. I notice the the files within the vm package are 777 now, but there is an extended attributes symbol on their permission details "rwxrwxrwx@" Since I can copy the vm between OS X partitions, but not to non OS X partitions, and all files and folders withing the vm package and the package itself have permissions of 777, I speculate that the "@" is the problem. How can I remove the "@" or is there something else I need to modify to allow me to copy/move the vm to other hosts?

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  • How to copy only VM changes in VMware to another physical machine

    - by Paul
    How can I use VMware Workstation to copy only changes to a VM to another physical machine, rather than recopying the entire VM every time? Can I just copy the snapshot files, if the second physical machine starts from a pristine copy of the VM? Would it be best to create a linked clone against the original VM, and then copy the linked clone directory each time? Does that even work? (I'm assuming I'll have to change the path in the VM's metadata file, since the paths will be different. I'm assuming I can't clone a linked clone w/o cloning the base.) Background: I and another developer with VMware Workstation are using VM's for systems development. I have to work from a home desktop. Transporting a multi-gigabyte VM either direction takes several hours at best. Downloading it is easiest, but that takes an hour to get it on a DMZ machine for download and then many hours to actually download.

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  • How do you keep track of applications for specific purposes

    - by The Journeyman geek
    I tend to have a handful of 'core' applications that cover most of what i need. On the other hand, there tend to be some programmes that i need once in a blue moon, and i'm finding that i'm forgetting what they are. At one point i had a wiki for it, but i'm curious how other people handle the problem. So, what's the means that you use to keep a database or other record of rarely used, but useful applications?

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  • Small, editable table of strings. Which Forms control do I want? (.NET)

    - by I. J. Kennedy
    I have a small array of structs, each struct has three fields, all strings. I want to display these structs in a grid, let the user edit the strings a la Excel, and then retrieve the edited strings of course. Which WinForms control is best for this? Tried a DataGridView but setting the DataSource to the array of structs doesn't seem to work. There are myriad controls with similar names but I can't figure out what does what. All the examples I've found are geared toward using a database as the data source--I just have a simple array.

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  • Problem with playing a sound when a button is clicked.

    - by iSharreth
    in my code: import "MyViewController.h" import (IBAction)playSound{ AVAudioPlayer *myExampleSound; NSString *myExamplePath = [[NSBundle mainBundle] pathForResource:@"myaudiofile" ofType:@"caf"]; myExampleSound =[[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:myExamplePath] error:NULL]; myExampleSound.delegate = self; [myExampleSound play]; } But it is showing a warning that Class MyViewController does not implement AVAudioplayerDelegate. Anyone please help. I had included the AVFoundation.Framework.

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  • Multiple Mod_ReWrites on one site - Possible? (Wordpress blog in root directory, CodeIgniter project

    - by Sootah
    Currently I am creating a project with CodeIgniter that is contained within a subdirectory of my domain. For this example we'll call it domain.com/test. I also have Wordpress installed on this domain, and all of its files are in the root. For instance, if you navigate to my domain.com then it pulls up the Wordpress blog. I currently have the Wordpress mod_rewrite activated so that it uses friendly-URLs. For those of you that aren't familiar with CodeIgniter, all requests are routed through index.php in the project's root folder. So, in this case, it'd be domain.com/text/index.php. A request to the application would be sent like domain.com/test/index.php/somecontroller/method. What I'd like to do, is for any incoming request that is directed towards the /test/ folder, or some subdirectory therein I'd like it to appropriately rewrite the URL so the index.php isn't included. (As per the example above, it'd end up being domain.com/test/somecontroller/method) For any OTHER request, meaning anything that's not within the /test/ directory, I would like it to route the request to Wordpress. I would imagine it's a simple RewriteCond to make it check to see if the request is for the /test/ directory or a subdirectory therein, but I've no idea how to do it. Perhaps you can't have more than one set of Rewrite Rules per site. I will include the recommended mod_rewrite rules for each application. Wordpress: (Currently used) <IfModule mod_rewrite.c> RewriteEngine On RewriteBase / RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule . /index.php [L] </IfModule> CodeIgniter: (Pulled from their Wiki) <IfModule mod_rewrite.c> RewriteEngine On RewriteBase / #Removes access to the system folder by users. #Additionally this will allow you to create a System.php controller, #previously this would not have been possible. #'system' can be replaced if you have renamed your system folder. RewriteCond %{REQUEST_URI} ^system.* RewriteRule ^(.*)$ /index.php?/$1 [L] #When your application folder isn't in the system folder #This snippet prevents user access to the application folder #Submitted by: Fabdrol #Rename 'application' to your applications folder name. RewriteCond %{REQUEST_URI} ^application.* RewriteRule ^(.*)$ /index.php?/$1 [L] #Checks to see if the user is attempting to access a valid file, #such as an image or css document, if this isn't true it sends the #request to index.php RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule ^(.*)$ index.php?/$1 [L] </IfModule> <IfModule !mod_rewrite.c> # If we don't have mod_rewrite installed, all 404's # can be sent to index.php, and everything works as normal. # Submitted by: ElliotHaughin ErrorDocument 404 /index.php </IfModule> Any and all help is much appreciated!! Thanks, -Sootah

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  • Is .NET 3.0 standard yet? [closed]

    - by Joshua
    Like dude wtf I'm learning WPF and LINQ and all this cool crap but it's all 3.0+ stuff is that pretty widespread deployed by now these days? Also let's say it can't run but they got like 1.1 or 2.0... will it auto-say "Click here to upgrade to latest .NET!"?

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