kissjob的专栏

1. What is the significance of Finalize method in .NET?非托管资源（文件，数据库，COM）不能释放，需要手动调用object.Finalize()方法。But unmanaged resources (example: Windows API created objects, File, Database connection obje

Differences between the Windows versionsXP/Server 2003ApplicationData: C:/Documents and Settings//Application DataCommonApplicationData: C:/Documents and Settings/All Users/Application DataCommonProgramFiles: C:/Program Files/Common FilesDesktopDirectory:

<br /><br />using System.Security.AccessControl;<br />        private void ApplyFullControlRight(string folder)<br />        {<br />            if (Directory.Exists(folder))<br />            {<br />                DirectoryInfo myDirectoryInfo = new Direct

<br /><br />using IWshRuntimeLibrary;<br />string profileNewFileName = Path.Combine(shortCutPath, @"short-cut.lnk");<br />                if (File.Exists(profileNewFileName))<br />                {<br />                    File.Delete(profileNewFileName);<

<br /><br />private static string ProgramFilesx86()<br />        {<br />            if (8 == IntPtr.Size<br />                || (!String.IsNullOrEmpty(Environment.GetEnvironmentVariable("PROCESSOR_ARCHITEW6432"))))<br />            {<br />               

<br /><br />[DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]<br />        public static extern void mouse_event(long dwFlags, long dx, long dy, long cButtons, long dwExtraInfo);<br /> <br />        private co

<br />1.使用 new 关键字时，调用的是新的类成员而不是已被替换的基类成员。这些基类成员称为隐藏成员。如果将派生类的实例强制转换为基类的实例，就仍然可以调用隐藏类成员.<br />public class BaseClass{ public void DoWork() { } public int WorkField; public int WorkProperty { get { return 0; } }}pub

一：1.delcare a delegate:public delegate void RemoteOperation();public  static void DoSth()    {        Console.WriteLine("DoSth");        Console.ReadLine();    }2.instantiate a delegateRemoteOperation function = DoSth;What done by Compiler automatically?1）

Covariance and Contravariance在 .NET Framework 4 中，Func 泛型委托（如 Func）具有协变返回类型和逆变参数类型。Action 泛型委托（如 Action）具有逆变参数类型。这意味着，可以将委托指派给具有派生程度较高的参数类型和（对于 Func 泛型委托）派生程度较低的返回类型的变量。(in 关键字)输入参数为逆变，（out 关键字）返回值为协变。public interface IEnumerable { /* ... */ }Notice the ou

小心使用你的Cache。。。http://www.codeproject.com/KB/web-cache/cachingmistakes.aspxTen caching mistakes that break your appBy Omar Al Zabir | 5 Oct 2010 | Unedited contribution Part of The Cloud Zone. Caching large objects, duplicate objects, caching coll

Create a new simple excel file.In the VBA part, set a simple password (say - 1234).Save the file and exit. Then check the file size - see St

In computer science, a closure is a function together with a referencing environment for the nonlocal names (free variables) of that functio

CodePage:foreach (EncodingInfo ei in Encoding.GetEncodings()) { Encoding e = ei.GetEncoding(); Console.WriteLine("Name:{0},CodePage:{1}",ei.Name, e.CodePage); }936-gb2312

http://www.codeproject.com/KB/cs/i-interface.aspx一个介绍interface的好文章Let's take a simple interface and see what we can do with it.  Collapse | Copy Codepublic interface ITask(){ vo

XP下在打开OpenFileDialog后，不能修改目录的名称，提示 "The action can't be completed because the folder is open in another program. Close the folder and try again."解决方法：var dlg = new OpenFileDialog;          dlg

http://www.codeproject.com/KB/recipes/RtfConverter.aspx在RTF中，中文等特殊字符的转换，需要添加Unicode的标记（\ucN, \uN）；the current RTF Specification 1.9.1,附件：Unicode RTFFrom Word 97 onward, Word is based

Extension methods enable you to "add" methods to existing types without creating a new derived type, recompiling, or otherwise modifying the original type. Extension methods are a special kind of st

The names of groups are localised depending on system language.For 'well known' groups like 'Administrators' and 'Guests' you should retrieve based on the SID. The SID for Guests is:S-1-5-32-546

http://connect.microsoft.com/VisualStudio/feedback/details/387419/access-to-the-path-global-net-clr-networking-is-denied-via-ipaddress-tryparseThis issue has been fixed in the next version of

It works fine with a normal (admin) WinXP user. P.S.: I use nhibernate 1.0.2, .net 2.0, SQl Server 2005 Express Edition Solution is to ReInstall .netFrame work or SQL Server......EDIT:

http://www.html5rocks.com/en/tutorials/internals/howbrowserswork/As a web developer, learning the internals of browser operations helps yo

<br />支持实时显示状态的Upload File.<br /> <br />http://www.codeproject.com/KB/webforms/FileUploadWithProgrss.aspx<br />http://www.codeproject.com/KB/webforms/FileUploadWithProgrss/FileUpload.zipIntroduction<br />File upload widget that will display real time file

<br />Asp.NET 4.0有4种ClientID的产生方法<br />ASP.NET 4.0 provides the power to control Client Ids generation. For that it provide the new property ClientIDMode property to handle this.This property enables us to to specify that, how the Client Ids will be genera

比如输入密码时，需要禁止Copy, Paste,Cut,Autocomplete等。((TextBox)this.Page.FindControl("ctl00$Tool$btnLogin$Password")).Attributes.Add("oncopy", "return false;");((TextBox)this.Page.FindControl("ctl00$Tool$btnLo

http://www.smashingmagazine.com/2009/10/14/css-differences-in-internet-explorer-6-7-and-8/一篇讨论在IE6, IE7 & IE8 下CSS 区别的文章。 One of the most bizarre statistical facts in relation to browser use has

近来在多语言实现里面，遇到了这样的错误：An error has occurred because a control with id grdComplaints$ctl04$ctl00 could not be located or a different control is assigned to the same ID after postback. If the ID is no

Normal 0 false false false MicrosoftInternetExplorer4 <!-- /* Style Definitions */ table.MsoNormalTable {mso-st

This article describes the ASP.NET Page Life Cycle from the moment the URL is hit from the web browser till the HTML code is generated and sent to the web browser.http://www.codeproject.com/KB/aspne

直接按回车键，然后进行查询功能。txtSearch.Attributes.Add("onkeydown", "if(event.which || event.keyCode){if ((event.which == 13) || (event.keyCode == 13)) {document.getElementById(" + this.btnSearch.UniqueID + ").

简单总结一下.NET多语言的一揽子解决方案1.根据ASP.NET Page，点击Tool->Local Resource，使得自动产生Local Resource。2.然后把所有的Local Resource合并到一个Global Resoure File。3.调用Goolgle.Translation API/DLL,自动进行翻译，得到你想要得语言Resoure File4.实现

Introduction:In order to reach international markets through the Internet,supporting different cultures through our applications is essential forbeing successful. The .NET Framework

1. 加密命令：C:/WINDOWS/Microsoft.NET/Framework/v2.0.50727/aspnet_regiis -pef "connectionStrings" "D:/Project/WebSite1" 2. 解密命令：C:/WINDOWS/Microsoft.NET/Framework/v2.0.50727/aspnet_regiis -pdf "c

 http://weblogs.asp.net/leftslipper/archive/2007/02/26/sys-webforms-pagerequestmanagerparsererrorexception-what-it-is-and-how-to-avoid-it.aspx Simplest solution: %@Page EnableEventValidation="fals

这篇文章讨论了，如何在ASP.Net防止Cross-Site Scipting攻击。有些地方还是值得借鉴的。 http://msdn.microsoft.com/en-us/library/ms998274.aspx 两条基本原则：1）限制输入2）加密输出主要步骤：Step 1. Check that ASP.NET request validation is

http://www.codeproject.com/KB/aspnet/ASPDOTNETauthentication.aspx

http://www.codeproject.com/KB/cs/MasteringInDebugging.aspxTable of ContentsIntroduction How to Start? Breakpoints Debugging with Breakpoints Step Over Step Into Step Out Contin

http://www.codeproject.com/KB/aspnet/ASPDOTNETPageLifecycle.aspx?msg=3443071#xx3443071xx ASP.NET application and page life cycle  IntroductionThe Two step processCreation of ASP.NET environmen

包括以下几种情况1. 使用 ASP.NET 来保护文件类型（绝对不允许用户下载/查看）http://support.microsoft.com/kb/815152默认状态下，ASP.NET 被配置以截获并停止在 ASP.NET 应用程序中使用的几种不同的文件类型的请求。这些文件类型是那些不会检索的用户。这些文件类型包括存储的应用程序和.cs 文件存储在应用程序的源代码的配置信息的.co

工欲善其事,必先利其器.介绍Visual Studio .NET IDE的常用的快捷键.1.IntelliSenseCtrl+J,显示完整列表.2.NavigationCtrl+- i.e. Ctrl + Hyphen.回到你之前浏览过的代码Ctrl+Shift+- 和上面的相反.F12, 查找该符号定义的位置,比如函数的申明.Shift+F12,显示所有引用过此符号的

                    char[] invalidFileChars = Path.GetInvalidFileNameChars();                    foreach (char c in invalidFileChars)                    {                        if (attachment.FileNam