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Articles indexed Saturday April 10 2010

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  • Which file is the COM++ object and how do I import it to .NET?

    - by Bad Man
    I'm trying to write a COM++ object wrapper around a Qt widget (control) I wrote so I can use it in future .NET projects. e.g.: public __gc class comWidget; In the compile directory are the .exe, an exe.intermediate.manifest, and the comWidget.obj, and also some other crap files (.pdb, etc). So what/how do I import into .NET? I feel like I'm missing an important step for registering the object or whatever, but all these tutorials are terrible outdated and ridiculously unhelpful (for instance, I'm using the old CLR syntax because I can't find any good docs on the new stuff, thx again M$ for being lazy faggots as usual)

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  • How to remove deletedObjects from ManagedObjectContext?

    - by Babut
    Hi, I have two enities: path <-- node. (one to many) In nodes ArrayController I override -DeleteObjects: to remove path if the last node is removed. Everything works perfect, but it's impossible to save edited document, because nodes are left in [ManagedObjectContext deletedObjcets]. It gives error on save. How to clean them up? Babut

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  • Button in gridview

    - by Rajeev
    I'm using a button in a template field of gridview. On button click I want to redirect to another page but it throws an exception: Invalid postback or callback argument. Event validation is enabled using in configuration or <%@ Page EnableEventValidation="true" % in a page. For security purposes, this feature verifies that arguments to postback or callback events originate from the server control that originally rendered them. If the data is valid and expected, use the ClientScriptManager.RegisterForEventValidation method in order to register the postback or callback data for validation. What can I do to resolve this problem?

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  • Validate a long type input

    - by Santiago
    I'm trying to validate that a user only enters a long value as input (long bigger than 0 actually). Compare and Range validator has DataTypeCheck for int values only. I was planning on using this class in a CustomValidator but then I would need to write both, client and server side validation code. Do you know of any other good way of doing this? Thanks!

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  • define javascript functions on iframe facebook app inside <fb:serverfbml> tag

    - by user233486
    Hi all, How we can define JS function on inside ? I tried to load file javascript on the end tag , but I still can't call the function from javascript file. Here the FBML tag <fb:serverfbml> <script type="text/fbml"> <fb:fbml> <a href="#" id="this" onclick="do_colors(this); return false">Hello World!</a> <script src="http://absolute.path.to/your/javascript/file.js"></script> </fb:fbml> </script> </fb:serverfbml> And here the javacript function on file.js function random_int(lo, hi) { return Math.floor((Math.random() * (hi - lo)) + lo) } function do_colors(obj) { var r = random_int(0, 255), b = random_int(0, 255), g = random_int(0, 255); obj.setStyle({background: 'rgb('+[r, g, b].join(',')+')', color: 'rgb('+[r<128?r+128:r-128, g<128?g+128:g-128, b<128?b+128:b-128].join(',')+')'}); } I use rails and facebooker to develop the application Any idea or suggestion for define javascript functions? Thanks,

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  • Drupal: Multiple Stylesheets

    - by Vecta
    I'm currently creating a custom Drupal theme for my company and I'm having trouble getting multiple stylesheets to load. I followed the instructions on this page by adding stylesheets to the .info file in the format: stylesheets[all][] = style.css stylesheets[all][] = name2.css etc... However, when I load the page nothing changes and when I view source, it consistently lists style.css but seems to ignore the others. Am I misunderstood in the process of adding additional stylesheets? What could I be doing incorrectly? Thanks for any help!

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  • Optimize css vs Google page speed is messing with me

    - by The Disintegrator
    I'm using google page speed and it's telling me my css is inefficient... Very inefficient rules (good to fix on any page): * table.fancy thead td Tag key with 2 descendant selectors and Class overly qualified with tag * table.fancy tfoot td Tag key with 2 descendant selectors and Class overly qualified with tag The css rules are table.fancy {border: 1px solid white; padding:5px} table.fancy td {background:#656165} table.fancy thead td, table.fancy tfoot td {background:#767276} I want the header and footer in a different background color than the body of the table (a data table) On what grounds this is inefficient? How to make it more efficient? I will not add a class to the thead and tfoot for googles's sake.

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  • determine if chipset is capable off packet injection and monitor mode

    - by Richard
    Hi, I am new to linux and I want to know if my chipset is capable off doing those things My chipset is a intel centrino advanced 6200-n on a sony vayo laptop running on windows 7. Now, I know that windows is only capable off listening, so I boot backtrack 4 from a usb stick. I also want to know if a live distribution can work flawlessly with the wificard even if it does not support formentioned things, because I try'd to use wget to download something and it says it ca not resolve the address? thanks, Richard

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  • Practice of checking 'trueness' or 'equality' of conditional statements - does it really make sense?

    - by senthilkumar1033
    I remember many years back, when I was in school, one of my computer science teachers taught us that it was better to check for 'trueness' or 'equality' of a condition and not the negative stuff like 'inequality'. Let me elaborate - If a piece of conditional code can be written by checking whether an expression is true or false, we should check the 'trueness'. Example: Finding out whether a number is odd - it can be done in two ways: if ( num % 2 != 0 ) { // Number is odd } or if ( num % 2 == 1 ) { // Number is odd } When I was beginning to code, I knew that num % 2 == 0 implies the number is even, so I just put a ! there to check if it is odd. But he was like 'Don't check NOT conditions. Have the practice of checking the 'trueness' or 'equality' of conditions whenever possible.' And he recommended that I use the second piece of code. I am not for or against either but I just wanted to know - what difference does it make? Please don't reply 'Technically the output will be the same' - we ALL know that. Is it a general programming practice or is it his own programming practice that he is preaching to others?

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  • Extracting an attribute value with beautifulsoup

    - by Barnabe
    I am trying to extract the content of a single "value" attribute in a specific "input" tag on a webpage. I use the following code: import urllib f = urllib.urlopen("http://58.68.130.147") s = f.read() f.close() from BeautifulSoup import BeautifulStoneSoup soup = BeautifulStoneSoup(s) inputTag = soup.findAll(attrs={"name" : "stainfo"}) output = inputTag['value'] print str(output) I get a TypeError: list indices must be integers, not str even though from the Beautifulsoup documentation i understand that strings should not be a problem here... but i a no specialist and i may have misunderstood. Any suggestion is greatly appreciated! Thanks in advance.

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  • Watch the Live Broadcast of the Silverlight 4 Launch Event

     Want to be at DevConnections for the Silverlight 4 Launch but can;t make it? No worries, you can watch as Scott Guthrie launches Silverlight 4. Following the keynote you can watch Scott in special one hour edition of "Ask the Gu" along with other Silverlight folk like me to answer your questions on Channel 9 Live. To watch the keynotes and Channel 9 Live coverage head to http://live.ch9.ms on April 12th and 13th. Silverlight required, of course :)  To be a part of the conversation...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • Creating a file server - How can I use a large VHD file in Hyper-V? (700GB)

    - by barfoon
    Hey everyone, After a few discussions (here, here, and here), I am still unable to create a simple VM that will be used as a fileserver hosted on my Hyper-V box. I have created a fixed 700GB SCSI drive (.vhd file), as I have learned an IDE drive of this size is not possible. Not to sound too cynical, but its blown me away at how much trouble its been to create a large amount of space and start using it. What is the best way to create a fileserver with a drive of this size hosted on Hyper-V Server 2008, and how can I get it going??? Inclusion of OS, driver, integration tools etc, anything you feel is required would be greatly appreciated. Extra information I am using the stand-alone version of Hyper-V server, and not Windows Server 2008. I have tried loading the Linux Integration Tools (linked in the comments of the last link above) onto a SUSE 11 VM and the installation fails, the machine cannot see the vhd at all. Thanks very much,

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  • How Do I Cache Just the Homepage with Apache .htaccess?

    - by Volomike
    This config is close... <FilesMatch "\.(php)$"> Header set Cache-Control "max-age=7200, must-revalidate" </FilesMatch> ...but it does all php pages, not just the home page like I want. Basically the developer said he wants example.com to be cached, while: http://example.com/electronics/ would not be cached. Note the developer is using pretty URLs with an MVC framework that runs everything through index.php.

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  • Difference between BES SBE and Express?

    - by DaveJohnston
    Can anyone tell me what the difference is between the BES epxress and small business edition is? From what I have read they are both identical in capabilities and also both have a 15 user limit. But the BES express edition is free and comes with 1 user license and SBE costs about £800 but comes with 5 user licenses. Buying a 5 user CAL pack costs about £350 (from what I have seen). So if there is no difference why would anyone buy the SBE when they could get the Express edition free and just add 5 more licenses for about £350? Is there any fundamental difference between express and SBE?

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  • Running 1 DC physically and a second virtually

    - by stead1984
    I plan to create my first DC and forest on a physical server, then I want to run a second DC on a virtual server that will replicate the first DC. I understand that this will provide redundancy for AD that if the first domain controller went down the second would resume until the first is back online. Would this work and how?

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  • Running SQL 2008 on a VM

    - by chris.w.mclean
    We are pondering trying to set up a SQL 2008 instance inside a VM for a production environment. All our SQL instances use iSCSI over gigabit ethernet to talk to a NAS, as would this new instance. Any reason this is a bad idea or any considerations to make this work well? The VM would be running in Xen 5.5 or we could set it up in Hyper-V if there's a compelling case for that. And the VM's VHD would be stored on a different NAS then the SQL storage is on.

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  • Ghosting context menu clicks in WinXP

    - by Swish
    Let me preface by saying I have a lot of windows open most of the time, although not resource intensive ones, just browsers, ssh sessions, a music player, FTP client, Notepad++, IM clkients, etc. Anyway, I get a lot of weird visual "ghosting" type effects. For example when right-clicking and then selecting an option from a context menu the selected item will remain in view until I right click somewhere on the desktop. Same thing happens when selecting items from the File, Edit, etc. menu in various programs. I'm assuming this is just a result of a less than high quality video card (NVIDIA GeForce FX 5200), all the other hardware in the machine is newer higher quality, that specific video card was added after the fact for multiple monitors. I have looked all over the web for solutions and have increased the number of GDI handles for Windows, reduced the hardware accelaration on the card, etc. Any suggestions other than replace the card?

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  • Outlook attachment save prompt behavior

    - by kara-marfia
    It seems they've put some Clippy-like behavior into Outlook 07. Assume you open an email message and open its attachment, given that you make no changes to the message or the attachment. If you close the attachment, then close the email - works as expected Close email - prompted to save changes to attachment I have some clerical users, and they tend to believe what the computer tells them. In this case, I'm having a hard time determining the reason someone determined that Outlook should lie in this case, and prompt someone to save a file that hasn't changed. Regardless, I've only been able to find examples of people failing to find a fix for this. Anyone have ideas? edit: I should have clarified, I suppose I'm looking for a workarounnd, as it's consistently reproduceable for any machine, and I suspect is therefore "working as intended"

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  • Add unallocated space to lvm

    - by Newbie
    I shrunk my windows partition and now have 10 GB of unallocated space that I now want to use to grow my / partition which is an ext4 in an lvm. I'm running Fedora 12. I ran system-config-lvm but the "Initialize Entry" button is greyed out. The unallocated space is not adjacent to the lvm but I cannot move the partitions in GParted like I was able to with ext3 in the past. I cannot create a new partition either as it says it cannot have more than 4 primary partitions. I don't see any option to create an extended partition. So my question is, how do I add that unallocated space to the lvm so I can grow the size of the / partition? I don't want to reinstall Fedora.

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  • what are good blogs to read relating java, spring, hibernate, maven?

    - by c0mrade
    To continue to question further I'm more interested in blogs, websites who once in a while release a tutorial, tip or best-practice on the topics I mentioned. For ex : http://net.tutsplus.com/ is very good website to follow if you wanna learn about or upgrade your knowledge about CSS, HTML, Javascript, PHP .. Is there a website like this for Java and related technologies?

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  • OpenCL books/tutorials?

    - by StfnoPad
    Is there any openCL books out there? or in the pipeline? Any online openCL tutorial? I already looked at the usual pages like khronos/nvidia dev/opengl.org/ati dev/siggraph slides. Any other help or pointer is welcome :-D Thanks!

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