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• Is AsParallel() good practice in a web environment?

  - by Bjorn Bailleul

  I have no doubt that for client applications, AsParallel() will bring some out-of-the-box performance gains. But what if I would use it in a web environment. Let's say I have a widget framework that loops over all widgets to get their data and render output. This would parallelize great no? I do have my doubts on using AsParallel() in this scenario. What if I have a large number of visitors for my site, isn't IIS going to use multiple threads to handle all requests? Aren't there going to be locking issues presented after a while, or threads dying because all processors are in use? It's just a thought, what do you think about this?

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• Running a shell script in *nix

  - by Ben

  Bit of a newb using *nix (I'm actually using a bash shell in OS X 10.5) and I wondered what the probably very simple answer is to this... When I write a script (called, say, my_script) and I've saved it to the current directory, why do I have to put a period and a forward slash in front of its name to run it? Like this: ./my_script Can't the shell tell that I want to run it from the current directory? Windows seems to handle that situation. Cheers Ben

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• need help with installing shared libraries on linux

  - by naiquevin

  Hi, I am new to linux and trying to get the Ajax Push engine server to work on Ubuntu 9.04. I installed the server from source it fails the check that it does by using its own javascript framework. The problem is that it fails to load the modules and the output that i get in the terminal when i start it is. [Module] Failed to load ../modules/lib/libmod_spidermonkey.so [Invalid library] (libmysac.so.0.0: cannot open shared object file: No such file or directory) i thought i had to install mysac lib as a shared lib, so after some searching i copied the libmysac.so to /usr/local/lib/ and upon running ldconfig there it created the symlink. But still it gived the same error. Now I copied the libmod_spidermonkey.so in the shared lib dir. But this time ldconfig did not create any symlinks. I am really confused and looking for some pointers . Please help

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• How to search and delete individual messages in Gmail

  - by xiechao

  How to search and delete individual messages (NOT threads) in Gmail? When I use simple steps like: search select all delete then, all messages in the threads are deleted, but I want to delete the individual messages matching my search criteria only.

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• C# Windows Forms Print Dialog box click OK twice to respond

  - by sbartlett007

  I'm using Visual Studio 2008, .net Framework 3.5 for a Windows forms client-server app that I'm working on. There is a weird bug when I run the program and try to print. The print dialog box opens, but I have to click the OK button twice for it to work. After the second click it works fine, no errors. When I put a breakpoint on: if (result == DialogResult.OK) , the breakpoint doesn't trigger until the second click. Here is the code: private void tbPrint_Click(object sender, EventArgs e) { try { printDialog1.Document = pDoc; DialogResult result = printDialog1.ShowDialog(); if (result == DialogResult.OK) { pDoc.PrinterSettings.PrinterName = printDialog1.PrinterSettings.PrinterName; pDoc.Print(); } ... This is driving me crazy, and I can't see anything else that would interfere with it.

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• Creating limited user account on Windows 7

  - by serena

  I'm sharing my PC (Win 7 x64 Home Premium) with a friend, and I wanna create a guest user for her. I don't want her to reach my files, Windows settings, program adjustments etc. She should just surf the net, create/edit her own Word, Excel documents, and simple things like these. How can I create this user account and make the necessary arrangements for limitations?

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• PrincipalPermission - roles seperate from permissions

  - by Leblanc Meneses

  I've been using PrincipalPermission for a while in wcf services. [PrincipalPermission(SecurityAction.Demand, Role = SecurityRoles.CanManageUsers)] although now i have a requirement to simplify roles by business unit. - currently aspnet_roles has fine grained can* permissions. Here is my approach and wanted to see if anyone can provide feedback, code review before i implement my suggestion. 1) aspnet_roles - business unit role 2) create permission table and Role_Permission table and User_Permission table (many to many) 3) create custom CodeAccessSecurityAttribute + that looks at new tables [CustomPermissionCheck(Security.Demand, HasPermission="can*")] first iteration i'll statically new the dependent repository.. ideally i would like an aop style attribute that has repository injected IPermissionRepository.HasPermission(...); If i approach new aop way i probably will stop inheriting from CodeAccessSecurityAttribute -- what do the security guys have to say about this? has anyone else solved this, is there something in the framework that i've missed?

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• How to get reference to SqlConnection (or Connection string) in Castle ActiveRecord?

  - by VoimiX

  how can I get reference to current SqlConnection or Sqlconnection in config? I found http://svn.castleproject.org:8080/svn/castle/trunk/ActiveRecord/Castle.ActiveRecord.Tests/DifferentDatabaseScopeTestCase.cs and code private string GetSqlConnection() { IConfigurationSource config = GetConfigSource(); IConfiguration db2 = config.GetConfiguration(typeof(ActiveRecordBase)); string conn = string.Empty; foreach (IConfiguration child in db2.Children) { if (child.Name == "connection.connection_string") { conn = child.Value; } } return conn; } But I cant understand where I can find "GetConfigSource" implementation? Is this standart Castle helper function or not? I use these namespaces using Castle.ActiveRecord; using NHibernate.Criterion; using NHibernate; using Castle.Core.Configuration; using Castle.ActiveRecord.Framework;

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• NUnit not running Suite tests

  - by Assaf Lavie

  I've created a test suite in NUnit that references several distinct unit test fixtures in various assemblies. I've pretty much used the example code from NUnit's docs: namespace NUnit.Tests { using System; using NUnit.Framework; using System.Collections; public class AllTests { [Suite] public static IEnumerable Suite { get { ArrayList suite = new ArrayList(); suite.Add(new VisionMap.DotNet.Tests.ManagedInteropTest.DotNetUtilsTest()); return suite; } } } } My goal is to add several tests to the list above so I can run them all in a batch. But when I try to load the DLL in NUnit's GUI I get this: What am I doing wrong? I'm using nunit 2.5.0.9122.

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• Allow native DLL to output stdout / stderr in c# console application

  - by xaw

  I have a native DLL which outputs via stdout / stderr. I have a C# console application which calls this DLL and outputs binary data to a parent C# application which started the C# console exe, processing stdout / stderr. Currently when I call the C# exe it works just fine (the DLL hooks up to the stdout of my console application and puts its data in just fine). Is this by design (and shouldn't be broken in future .NET framework versions)? Are there limitations on my managed code's deployment with this strategy (full-trust, permission requirements, GAC issues, etc)? I can't seem to find any documentation about stdout with a managed exe and an unmanaged dll both putting data in that standard output on MSDN. Thanks,

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• How to count occurrence of an element in a List

  - by MM

  I have an ArrayList a collection class of java as follows. ArrayList<String>animals = new ArrayList<String>(); animals.add("bat"); animals.add("owl"); animals.add("bat"); animals.add("bat"); As you can see the animals ArrayList consists of 3 bat elements and one owl element. I was wondering if there is any API in collection framework that returns the number of bat occurrences or is there a way to determine number of occurrences. I found that google's collection multiset does have an api that returns total number of occurrences of an element. But that is compatible only with jdk1.5. Our product is currently in jdk 1.6. Hence cannot use it.

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• Explode all folders

  - by sam

  Ive got a folder with about a hundred sub folders and again each ones of those has between 10 and 20 sub folders, so all in all a pretty large folder tree. Is there a simple way i can explode or export all of the files in the tree to a new folder which will just be one folder contain the files (no folders, no trees). Im running OSX 10.8, although ive also got Parallels so if there is a windows solution i could just run that as its not something i need to do everyday.

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• Adding to the browser user agent string?

  - by stwissel

  I have a plug-in that handles its own url schema (something like mystuf:// ). If a user clicks on such a link when the plug-in isn't installed (s)he gets an ugly error. So I extended my installer to write into the Registry (for Internet Explorer) and the user.js (for Firefox) to ADD a custom string to the user agent string. These additions survive a browser upgrade nicely (Microsoft uses this technique to indicate the presence of the dotNet Framework). Now I need to extend this to Apple Safari and Google Chrome on all supported platforms. To be clear: I'm not looking how to REPLACE the user agent string, but how to amend it with additional information. Any hint?

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• Visual Studio Editor, MEF in-Depth

  - by NewProgrammer

  I have been having difficulty simply writing a Visual Studio Editor Extension with MEF (Managed Extensiblity Framework). I thank those who answered my previous question, as they helped me know that I need to work with MEF. I've been trying to learn MEF for the Visual Studio Editor from MSDN's page, Extending the Editor, but it appears that I have a hard time understanding it. Can anyone provide strong resource or tutorials in addressing problem such as using the right ContentTypeDefintion (IGlyphFactory, TextMarkTag, etc...), and what is a ITagger. I need to understand these things, as most of the walkthrough only extending the text, such as only using the "spans" functionality, while I need to use "selection" methods and use MouseEventHandlers. Does anyone know an example similiar to my example, or references can tell me something about MEF's for VS editor in-depth?

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• NHibernate with or without Repository

  - by Groo

  There are several similar questions on this matter, by I still haven't found enough reasons to decide which way to go. The real question is, is it reasonable to abstract the NHibernate using a Repository pattern, or not? It seems that the only reason behind abstracting it is to leave yourself an option to replace NHibernate with a different ORM if needed. But creating repositories and abstracting queries seems like adding yet another layer, and doing much of the plumbing by hand. One option is to use expose IQueryable<T> to the business layer and use LINQ, but from my experience LINQ support is still not fully implemented in NHibernate (queries simply don't always work as expected, and I hate spending time on debugging a framework). Although referencing NHibernate in my business layer hurts my eyes, it is supposed to be an abstraction of data access by itself, right? What are you opinions on this?

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• Whats the difference between a USB key and a USB harddrive

  - by mgb

  I have a DVD player that can play files on a USB key. It also works with a cable to my MP3 player (4gb chipod) But it doesn't recognize any external USB hardrive. Even one <32Gb, fat32, single partition, everything I can think of to make it look simple. Any ideas?

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• AutoCompleteExtender positioning menu incorrectly when scrolled

  - by Colin

  We have an AutoCompleteExtender linked to a TextBox. Both controls are placed inside an UpdatePanel, and the UpdatePanel is displayed as a pop-up dialog using a Javascript library (Ext.BasicDialog). The pop-up is a div on the page, not a separate window. The problem is that when the user scrolls inside the pop-up, the AutoCompleteExtender shows its menu in the wrong place. It looks like it is taking the visible distance from the top of the popup and positioning the menu from the top of the inner html of the popup (which is not visible) We are using Version 1.0.20229.20821 of the AjaxControlToolkit, and we are targetting ASP.NET Framework vewrsion 2.0. I have tried to fix the menu by attaching the following Javascript to the OnClientShown event, but it pretty much does the same thing: function resetPosition(object, args) { var tb = object._element; // tb is the associated textbox. var offset = $('#' + tb.id).offset(); var ex = object._completionListElement; if (ex) { $('#' + ex.id).offset(offset); } }

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• Struts2 dynamic form elements

  - by bozo

  Hi, I would like to create little higer-level framework on top of Stuts2 which can take form element description from Action and render a complete form, in order to avoid having a separate JSP files with hardcoded form elements for every form in a large web application (so if I manage to do this I will have just a few generic JSPs for data form and few for layout). Application is extremely data-driven. My idea is to create form description using custom objects in the Action (i.e. Button, TextInput etc.) and then to create a single JSP page that will render eveything out. What is the best way of doing this? Can you propose some concrete way to do this? I don't want to write something if I can reuse the existing code with some effort. Any ideas are appreciated. Kind regards, Bozo

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• what's a good way to synchronize a sql server 2008 database from a 2005 database automatically?

  - by Keith Nicholas

  Ok, the scenario is... two servers, on completely different parts of the internet. The sql 2008 database just needs to get data updates and schema changes. It doesn't need to send anything to the 2005 database. Basically just suck data and schema as efficiently as possible automatically as a scheduled task. The database is quite huge.... but the changes per day are probablly around 20/30 megabytes of data/ I can't run any of the inbuilt replication on the 2005 database. I've had a wee look at the Sync Framework, I think that might do what I want, but seems a bit painful and requires a bit of work to get going. I'm wondering if there is tooling out there to make this easier? or?? not quite sure what my options are.

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• Problem with bash scripting

  - by eple

  Hi. I terrible with bash scripting, and need some help with the following: #!/bin/bash if [ -e Pretty* ];then ncftpput -R -DD -v -u xbmc -p xbmc 192.168.1.100 /home/xbmc/TV/Pretty_Little_Liars/ Pretty* else echo "No new folders" fi find -depth -type d -empty -exec rmdir {} \; Problem here is the ncftpput line.. if I just do a simple [ echo "working" ] instead, everything is OK, but when I try the ncftpput-line it just gives me [ line 5: [: too many arguments ] the ncftpput command alone works fine.. Any ideas?

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• MVC Implementation PHP Zend PDF generation

  - by zod

  Am using Zend framework and PHP Am going to generate a PDF using Zend . So the View is PDF.There is no PHTML. But if i dont use PHTML in view , is it a perfect MVC? if i want to be a perfect MVC shall i do the db retrieval and variable declaration and assigning in controller and use view and use all pdf functions in view phtml file will it make a perfect MVC? What is the advantage of MVC in this case? :-) can i do the include of zend pdf in phtml file or controller php file? what is the difference ?

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• Why isn't Hadoop implemented using MPI?

  - by artif

  Correct me if I'm wrong, but my understanding is that Hadoop does not use MPI for communication between different nodes. What are the technical reasons for this? I could hazard a few guesses, but I do not know enough of how MPI is implemented "under the hood" to know whether or not I'm right. Come to think of it, I'm not entirely familiar with Hadoop's internals either. I understand the framework at a conceptual level (map/combine/shuffle/reduce and how that works at a high level) but I don't know the nitty gritty implementation details. I've always assumed Hadoop was transmitting serialized data structures (perhaps GPBs) over a TCP connection, eg during the shuffle phase. Let me know if that's not true.

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• installing SNMP in Windows x32 Customized Image

  - by André Faria

  I'm working in a environment of 40 machines, I've already installed snmp in 38 machines normally, but 2 of them appear to have been installed with a customized windows image, there is no OptionalFeatures, there is no ocsetup.exe, so I could not able to install SNMP. I tried to copy OptionalFeatures and ocsetup from another machine, but it don't work. For now I cannot simple format these two computer, it's possible to install it using another way? Thanks in advance

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• ExpectedException on TestMethod Visual Studio 2010

  - by Joop

  Today I upgraded my solution with all the underlying projects from VS2008 to VS2010. Everything went well except for my unit tests. First of all only the web projects had as target framework .NET 4. All the other projects still had .NET 3.5. I changed them all to .NET 4. Now when I debug my unit tests it breaks on every exception. In 2008 it just wouldn't pass and tell me that an exception occurred. Even when I have the ExpectedException attribute defined it stops debugging on every exception. And example of one of my tests: [TestMethod] [ExpectedException(typeof(EntityDoesNotExistException))] public void ConstructorTest() { AddressType type = new AddressType(int.MaxValue); } The EntityDoesNotExistException is a custom exception and inherits Exception.

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• Failed opening 'SiteTest: Firefox.php' when running Yii Functional Test

  - by Phelios

  Warning: include(): Failed opening 'SiteTest: Firefox.php' for inclusion ... \yii\framework\YiiBase.php on line 418 Yii v1.1.10 PHPUnit v3.6.10 PHPUnit_Selenium v 1.2.6 I get this error when trying to run the example on the book "Agile Web Development with Yii 1.1 and PHP5" I kind of feel that there is a problem with the phrase SiteTest:, it shouldn't be there. But, how do I fix this? UPDATE (SOLVED): Apparently, the problem is not the warning shown above, but there is another error down the road. It says that "curl_init()" is undefined. I already enabled the php_curl extension, but the PHP from CLI is not using the same .ini file as the apache one. So, after I enabled the php_curl in the CLI version of the ini, it works fine now (still giving the warning, but the test is running).

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