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• Squid randomly stops serving requests. How can I resolve this issue?

  - by Vijay

  The squid (2.7) proxy that I have running on ubuntu 8.10 stops accepting new requests after being online for a while, due to reasons that I can't discover. However doing a squid -k reload resolves the problem immediately. Now I manually run this command by monitoring the log and if i don't see any activity for 5 minutes I reload the config. Now on my quest for a solution I had several ideas: diagnose the root cause and eliminate it setup a script to automatically reload script if no new entries in access.log for the past 3 minutes painstakingly upgrade server to newer ubuntu version while keeping network offline or during off hours to minimize downtime. so i thought I would turn to you for solutions to option 2), as I do not understand squid enough for 1), and I'm avoiding 3) as long as i can. so can ideas?

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• Simple Thread Programming

  - by mike

  I have started to play with threads in c#, but need now help, here is my code: public partial class Form1 : Form { public Form1() { InitializeComponent(); DoCount(); } public void DoCount() { for (int i = 0; i < 100; i++) { objTextBox.Text = i.ToString(); Thread.Sleep(100); } } } its a simple win forms with a textbox, i want to see the "counting", but as you see in my code, the textbox shows me 99, it count till 99 and then shows up.. i`ll think, i have to manage this in a new thread but dont know how!

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• How decide whether a e-mail was newly sent, replied or forwarded?

  - by user572783

  I use Visual Studio 2010 to create an Outlook 2007 Addin. Now i want to know whether a e-mail was newly sent, replied or forwarded. Is there any property for this? using Outlook = Microsoft.Office.Interop.Outlook; namespace _Outlook2k7_Add_In { public partial class ThisAddIn { private void ThisAddIn_Startup(object sender, System.EventArgs e) { } private void ThisAddIn_Shutdown(object sender, System.EventArgs e) { } void Application_ItemSend(object Item, ref bool Cancel) { Outlook.MailItem mail = Item as Outlook.MailItem; if (mail == null) return; // Magic? } #region VSTO generated code /// <summary> /// Required method for Designer support - do not modify /// the contents of this method with the code editor. /// </summary> private void InternalStartup() { this.Startup += new System.EventHandler(ThisAddIn_Startup); this.Shutdown += new System.EventHandler(ThisAddIn_Shutdown); this.Application.ItemSend += new Outlook.ApplicationEvents_11_ItemSendEventHandler(Application_ItemSend); } #endregion } }

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• Monitoring File I/O on file Server.

  - by jenglee

  Is there a way to monitoring the file I/O on my file server. I want to gather some metrics on my current file system. I am running an old windows 2003 file server and I am planning on moving to a new file server running either windows server 2008 or 2012. I want to use these metrics and get a new file server that improve file I/O and access. Can some please advise me to what is the best way to monitor file access and get file I/O information so I can upgrade to a better file server.

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• How to make HTML5 speech recognition not ask permission every time

  - by user2081044

  I have created a script that requires my microphone. It uses the HTML5 speech recognition API. Chrome asks permission every time I want to perform a speech recognition test. Javascript (partial) code that I am using: var recognition = new webkitSpeechRecognition(); recognition.continuous = true; recognition.interimResults = true; recognition.onresult = function(event) { console.log(event.results[0][0].transcript); if(event.results[0][0].transcript === 'print') { console.log(''); } }; recognition.start(); I have tried to add it into the list of exceptions in either Chrome and Flash player, but it still asks for permission. Printscreen: That message pops up everytime I click the button. Is there any way to disable Chrome for asking permission?

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• Turning a (dual boot) Ubuntu 9 into a virtual machine

  - by xain

  I have a dual boot box (Ubuntu 9 and Vista) and I'm about to upgrade Vista to Win 7. Being Ubuntu my main development environment, I'd like to use it as it is from the new environment via VirtualBox or VMWare. I know tools like clonezilla that backup entire drives; in my case, the linux partitions are distributed between several disks which in turn contain both linux and windows data. My intention is to use some backup tool (like Clonezilla if it fits) that allows me to ONLY backup the linux partitions distributed in several disks. Any hints ? Thanks in advance.

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• c# open webrowser in many tab

  - by tee

  how can i create tab tab1 open samsung.com tab2 open hp.com ... using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; namespace browsergotosamsung { public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void Form1_Load(object sender, EventArgs e) { webBrowser1.Navigate("http://www.samsung.com"); webBrowser2.Navigate("http://www.hp.com"); webBrowser3.Navigate("http://www.IBM.com"); } private void webBrowser1_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e) { } private void webBrowser3_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e) { } private void webBrowser2_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e) { webBrowser2.Size } } }

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• Moving to an SSD with Windows 7

  - by Nick Gerakines

  Disclaimer: I've been digging around for a few days and didn't get what I was looking for in terms of answers, so I'm asking here. I've recently purchased an 80g SSD drive to use as my boot up and OS parition. I've got a windows 7 desktop with two 1TB (raid0) disks currently and I'm not sure where to start in terms of copying / moving the OS. I suppose that doing a fresh install isn't out of the question, but I've got an upgrade disk from Vista that I'd have to deal with. Where do I begin?

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• Unity and web service

  - by zachary

  I had this awesome idea... but I am afraid maybe it is actually a bad idea.... we use unity for dependency injection. I make interfaces from my web services using partial classes for the purpose of mocking and web services.... What I want to do is put my web services into unity and get them via dependency injection... What do you think? Is there too much overhead somewhere? Memory leaks? Is this a bad idea?

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• Visual Studio keeps inserting absurd default property value in designer file

  - by Bugz R us

  i have a simple usercontrol with following properties: public partial class RichTextEditorControl : UserControl { public string EditorText { get { return richTextBox1.Rtf; } set { richTextBox1.Rtf = value; } } public string EditorPlainText { get { return richTextBox1.Text; } set { richTextBox1.Text = value; } } } Now whenever I EDIT a form which contains this control, VS fills its designer file with the following code line, and then throws a designer error : this.richTextEditorControl1.EditorPlainText = global::Project.Resources.MyResources_de_DE.SomeString; Now I don't know where it gets this value from ??? I've searched entire solution, and nowhere there's mention of this var, except for 1 file, where it's needed ... Moreover, the code VS writes, has an error in it ?! It doesn't compile ... The only thing I can do is edit the designer file, but the next time I have to edit the form with the designer, the same error happens again ... Where on earth is VS getting this value from ??

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• Passing Services to MainViewModel - SHOULD I use a dependency injection container ?

  - by msfanboy

  Hello, I have this code: public partial class App : Application { protected override void OnStartup(StartupEventArgs e) { base.OnStartup(e); var mainVM = new MainViewModel ( new Service1(), ... new Service10(), ); var window = new MainWindow(); window.DataContext = mainVM; window.Show(); } } I pass all my Services instances to the MainViewModel. Within the MainViewModel I spread those services to other ViewModels via constructor parameter passing. Should I use any DI framework for the services in the App class? If yes whats the benefit of resolving the services instead of just creating the instance manually... ?

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• How to use a function for every C# WinForm instead of pasting .

  - by nXqd

  protected override bool ProcessCmdKey(ref Message msg, Keys keyData) { { if (keyData == Keys.Escape) this.Close(); return base.ProcessCmdKey(ref msg, keyData); } } I discovered this snippet to close windows form by esc. I really want to implement this to every windows form. I try to create a new abstract class which inherit from Form and another windows form will inherit from this one . But it doesn't work this way . abstract class AbsForm: Form { protected override bool ProcessCmdKey(ref Message msg, Keys keyData) { { if (keyData == Keys.Escape) this.Close(); return base.ProcessCmdKey(ref msg, keyData); } } } public partial class HoaDonBanSach : AbsForm { public HoaDonBanSach() { InitializeComponent(); } Thanks for reading this :)

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• FeedDaemon and Tweetdeck not opening links in Chrome but opening in IE when IE is set default browser

  - by user2059078

  A while ago a Chrome version update failed and I ended up having a program called new_chrome.exe in the folder where chrome.exe used to be. I was very busy at that moment and I continued to work without bothering to try to fix the problem. Apparently recently another update came out and the new_chrome.exe is now gone, it was replaced by chrome.exe. Since the last upgrade happened two applications that I use a lot (not sure if others do the same) do now work anymore as they used to when I try to open links. These two apps are Tweetdek and Feedaemon. If I change the default browser to Internet Explorer they both open the links when I click on them I tried everything I could but it did not work: My Default programs look like this: and my set Default Programs looks like this: How can I fix this?

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• Opensolaris, ZFS shares

  - by Random

  I've recently updated to OpenSolaris 2010.05 from 2009.06. Its currently set up to share one of the the ZFS zpools to the other machines on my network. However, only a single account is able to access these shares. My other accounts get refused when attempting to connect. File permissions are all correct - When logging into the machine directly with the other logins, I can see, and play with the files and directories as normal - Its just the share that gets refused. The interesting thing is, I could access the shares prior to upgrading. Nothing else was changed other than the straight upgrade. I am pretty sure there is no user specific sharing going on. What could be preventing others from accessing this zpool?

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• Windows 7 ISO not booting from DVD drive?

  - by chum of chance

  I've downloaded Windows 7 x64 Pro Upgrade from the volume license center. I've also downloaded the Windows 7 USB/DVD download tool. I'll burn it using this tool and while it will show up in Explorer as if the burn worked correctly, when I try to boot to the DVD on startup, I get a "No operating system found" error (this is a newer Lenovo). My Ubuntu Live CD works fine, am I missing something? I read that there's problems if you try to burn a 64bit copy from a 32bit computer, but I'm currently running Win7x64, so that shouldn't be a problem. I've also tried burning with ImgBurn and Windows 7 built ISO burner, no success. Obviously there's a step I'm missing here, what gives?

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• How do I delete Windows.old in Windows 7?

  - by CRK

  I used to run Windows 7 32 bit, but installed the 64 bit version because of a RAM upgrade. During the installation I got this message: The partition you selected might contain files from a previous Windows installation. If it does, these files and folders will be moved to a folder named Windows.old. You will be able to access the information in Windows.old, but you will not be able to use your previous version of Windows. The C:\ drive now has two (2) Windows folders: Windows (15.3 GB) Windows.old (15.7 GB) Don't see why I need the Windows.old taking over 15GB of space on my hard drive so I tried to delete it. It didn't work. How can I safely delete this folder?

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• Asychronous page update with ASP.NET MVC

  - by Graham

  Hi, I'm learning ASP.NET MVC 1.0 and need to implement an asynchronous/dynamic page update. I'm new to MVC and jQuery so I'm not sure what to look for. What I want to do is to allow a user to start a monitoring a domain layer function (similar to a news ticker) and then do a partial page update based on the continously changing results. In ASP.NET I'd do this with a javascript timer to cause a postback, and an AJAX update panel..... but this seems a bit "hacky" for ASP.NET MVC. Is there a better way?

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• Class.Class vs Namespace.Class for top level general use class libraries?

  - by Joan Venge

  Which one is more acceptable (best-practice)?: namespace NP public static class IO public static class Xml ... // extension methods using NP; IO.GetAvailableResources (); vs public static class NP public static class IO public static class Xml ... // extension methods NP.IO.GetAvailableResources (); Also for #2, the code size is managed by having partial classes so each nested class can be in a separate file, same for extension methods (except that there is no nested class for them) I prefer #2, for a couple of reasons like being able to use type names that are already commonly used, like IO, that I don't want to replace or collide. Which one do you prefer? Any pros and cons for each? What's the best practice for this case? EDIT: Also would there be a performance difference between the two?

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• How to add model entity property in WCF RIA service

  - by Oblomingo

  I'm developing silverlight app with WCF Ria service. I'm using MS SQL database and Entity Framework as ORM framework (Database first method). Model with domain service are in separate project - App1.Data. Silverlight and generated model proxy classes are in App1 project. I want to add property to model entity class EntityClass to get this property on client side. So I did it that way - added this class to project App1.Data: public partial class EntityClass { [DataMember] public List<EntityClass2> PropertyName {get; set;} } After rebuilding EntityClass proxy on client side doesn't have this new property. Where is my mistake?

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• How to maintain VPS server?

  - by clorz

  Assuming I have no experience in running them, what would be called a good maintenance routine for a VPS server running mail server and LAMP with a couple of sites. I've got one for quite a while now, but was doing what I feel is right without any guidance. It's ubuntu server and the only thing I do is ssh in there once a month and apt-get update, apt-get upgrade. Last year it suggested to update the distro, which I did. Waded through a bunch of diffs, broke mail server in the process and fixed it later on. So it turned out fine. Was this a right thing to do or should I stick with the old version just updating the packages? Is there a difference in the routine if it will be Fedora?

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• how do I determine how much VRAM is in the system?

  - by Cocoa Dev

  I just bought a Samsung Series 7 laptop but I have no idea how much VRAM the graphics card has. This is an NVIDIA OPTIMUS card. I am using Windows 7 and will upgrade to 8 within the hour. I switched from Mac to PC. So its not familiar to me. I am sorry that you guys know where to look and think this question is very trivial. Someone is selling me his laptop and claims it has 1GB VRAM. The stock # says it should have 512MB and I wanted to verify these details.

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• Making linq avoid using in memory filtering where possible

  - by linqmonkey

  Consider the these two LINQ2SQL data retrieval methods. The first creates a 'proper' SQL statement that filters the data, but requires passing the data context into the method. The second has a nicer syntax but loads the entire list of that accounts projects, then does in memory filtering. Is there any way to preserve the syntax of the second method but with the performance advantage of the first? public partial class Account { public IQueryable<Project> GetProjectsByYear(LinqDataContext context, int year) { return context.Projects.Where(p => p.AccountID==this.AccountID && p.Year==year).OrderBy(p => p.ProjectNo) } public IQueryable<Project> GetProjectsByYear(int year) { return this.Projects.Where(p => p.Year==year).OrderBy(p => p.ProjectNo).AsQueryable() } }

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• How to permanently prevent specific part of a file from being committed in git?

  - by boutta

  I have cloned a remote SVN repository with git-svn. I have modified a pom.xml file in this cloned repo in a way that the code compiles. This setup is exclusive for me. Thus I don't want to push the changes back on the remote repo. Is there a way to prevent this (partial) change of a file from being committed into the repo? I'm aware of the fact, that I could use a personal branch, but this would mean certain merging overhead. Are there other ways? I've looked into this question and this one, but they are for rather temporal changes. Update: I'm also aware of the .gitignore possibilities, but this would mean to exclude the file completely.

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• What is the correct connection string for SQL 2000 server in entity framework

  - by M-Askman

  I success to use entity framework for MySQL but reverse code can not be used with SQL Server 2000, then i guess to change connection string to connect SQL Server 2000, however, got error <add name="BetterContext" connectionString="Data Source=server2;Initial Catalog=GoodDB;User ID=sa;Password=hello;MultipleActiveResultSets=True;" providerName="System.Data.SqlClient" /> An error occurred while getting provider information from the database. This can be caused by Entity Framework using an incorrect connection string. Check the inner exceptions for details and ensure that the connection string is correct public partial class BetterContext : DbContext { static BetterContext() { Database.SetInitializer<BetterContext>(null); } public livefeedContext() : base("Name=BetterContext") { }

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• template specilization using member enums

  - by Altan

  struct Bar { enum { Special = 4 }; }; template<class T, int K> struct Foo {}; template<class T> struct Foo<T::Special> {}; Usage: Foo<Bar> aa; fails to compile using gcc 4.1.2 It complains about the usage of T::Special for partial specilization of Foo. If Special was a class the solution would be to a typename in front of it. Is there something equivalent to it for enums (or integers)? Thanks, Altan

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