Custom Http Handlers

The complete article
The concept of custom HTTP Handlers is not new, but is a bit overlooked one. Performance-wise, using custom HTTP Handler is an excellent choice over ASP.NET pages when you don't need the huge overhead of ViewStates, Page life cycle events and support for postback stuff etc.
Another extremely powerful, yet easily implementable use of a custom HTTP Handler is to process some resource or some type resources in your web site in special manner. E.g. You can restrict access to all *.txt file (no matter which web folder they are in) or if log.dat is requested then based upon valid role of the user, present the logged information from database etc.
In this article we'll create a HTTP Handler to resize an image as per parameters that user passes. I have used Ajax Slider control only for better UI. Then as an example of how HTTP Handler can be used to process a type of files, we would create another HTTP handler to restrict access to specific types of files types, just to get an idea of this type of application.

CCleaner

Download
CCleaner (Crap Cleaner) removes all sorts of unused files, temp files, cookies, log files, cached files and other files from your computer. This is something that all computer users should do on a regular basis, not just to free up space on the hard drive but for better performace as well. A hard drive cleaner would be the first thing you would use when you have performance problems or system starts behaving erratically.

As hard drive cleaners go this is one of the coolest out there, not just because it is 100% free but because it is very fast and does the job efficiently and has a nice, intuitive interface.It also completely erases all internet “tracks”, including cookies and history files, protecting your privacy from anybody who might want to monitor your internet behavior. CCleaner works with IE, Firefox, and Opera. It will also automatically detect the recently used file lists of most installed applications and erase those tracks as well.

CCleaner also delivers 2 other functionalities as a registry cleaner and uninstaller. Although these both seem to work quite well, I must confess that I almost never use them, and it is the hard drive cleaning functionality that I makes me install and use this software. Having said that I will also admit that the registry cleaner seems to work quite well, in that it finds and resolve issues and does not seem to cause any undesirable side effects that are always a risk with registry cleaning tools in general. It also allows you to back up the registry before doing any intervention in case you wanted to undo these afterwards.

Note: this software will attempt to install the Yahoo toolbar (UK version) on your machine if you use the default install options, which is a bit annoying. If you don’t want this, make sure to uncheck the Yahoo toolbar checkbox in the install options.

EmEditor Text Editor

Welcome to EmEditor Text Editor Home Page!
EmEditor Text Editor is a lightweight yet extendable, easy-to-use text editor for Windows. EmEditor is very customizable, and it supports Unicode and powerful macros. EmEditor is designed for Windows XP, and certified for Windows Vista! The x64 Edition is also available!

http://www.emeditor.com/

.Net Remoting Articles

.NET Remoting with an easy example
Remoting Architecture in .NET
A Pintch Over .Net Remoting
Remoting in .Net using C#

Design Guidelines for Class Library Developers

http://msdn2.microsoft.com/en-us/library/czefa0ke(vs.71).aspx

IT interview questions

I'm collecting websites that are dedicated to IT interview questions.
I have found following websites:

http://www.geekinterview.com/Interview-Questions

http://www.techinterviews.com/

Outlook style navigation bar

<head><br /><title>QQ菜单</title><br /><meta http-equiv='Content-Type' content='text/html; charset=gb2312'><br /><script language='JavaScript'><br />var headHeight = 22;var bodyHeight = 202;var objcount = 6;var step = 10;var moving = false;<br />function showme(obj1, obj2)<br />{<br /> if (moving)<br /> return;<br /> moving = true;<br /> for(i=0;i<document.all.tags('td').length;i++)<br /> if (document.all.tags('td')[i].className.indexOf('headtd') == 0)<br /> document.all.tags('td')[i].className = 'headtd1';<br /> obj2.className = 'headtd2';<br /> moveme(obj1);<br />}<br />function moveme(obj)<br />{<br /> idnumber = parseInt(obj.id.substr(4));<br /> objtop = headHeight * (idnumber - 1);<br /> objbuttom = bodyHeight + headHeight * (idnumber - 2);<br /> currenttop = parseInt(obj.style.top);<br /> if (currenttop >= objbuttom)<br /> {<br /> countid = 1;<br /> for(i=0;i<document.all.tags('div').length;i++)<br /> if (document.all.tags('div')[i].id == 'item'+countid+'body')<br /> {<br /> obj = document.all.tags('div')[i];<br /> objtop = headHeight * (countid - 1);<br /> if (countid == idnumber)<br /> {<br /> moveup(obj,objtop,false);<br /> break;<br /> }<br /> else<br /> moveup(obj,objtop,true);<br /> countid++;<br /> }<br /> }<br /> else if ((currenttop >= objtop) && (idnumber < objcount))<br /> {<br /> idnumber++;<br /> countid = objcount;<br /> for(i=document.all.tags('div').length-1;i>=0;i--)<br /> if (document.all.tags('div')[i].id == 'item'+countid+'body')<br /> {<br /> obj = document.all.tags('div')[i];<br /> objbuttom = bodyHeight + headHeight * (countid - 2);<br /> if (countid == idnumber)<br /> {<br /> movedown(obj,objbuttom,false);<br /> break;<br /> }<br /> else<br /> movedown(obj,objbuttom,true);<br /> countid--;<br /> }<br /> }<br />}<br />function moveup(obj,objtop,ismove)<br />{<br /> currenttop = parseInt(obj.style.top);<br /> if (currenttop > objtop)<br /> {<br /> obj.style.top = currenttop - step;<br /> setTimeout('moveup('+obj.id+','+objtop+','+ismove+')',1)<br /> return;<br /> }<br /> moving = ismove;<br />}<br />function movedown(obj,objbuttom,ismove)<br />{<br /> currenttop = parseInt(obj.style.top);<br /> if (currenttop < objbuttom)<br /> {<br /> obj.style.top = currenttop + step;<br /> setTimeout('movedown('+obj.id+','+objbuttom+','+ismove+')',1)<br /> return;<br /> }<br /> moving = ismove;<br />}<br /></script><br /><br /><style type='text/css'><br />.headtd1 { background: #00A4E1; border: 1px outset; border-color: #00BBFF #0077FF #0077FF #00BBFF; cursor: hand; font-size: 9pt}.headtd2 { background: #20C1FF; border: 1px outset; border-color: #60D3FF #0077FF #0077FF #60D3FF; cursor: hand; font-size: 9pt}.bodytd { background: #99CCFF; border: 1px outset; border-color: #B0D8FF #0077FF #0077FF #B0D8FF; font-size: 9pt}<br /></style><br /></head><br /><br /><div id='mainboard' style='position:absolute; left:2px; top:2px; width:120px; height:312px; z-index:1; overflow: hidden; background: #99CCFF;'> <div id='item1body' style='position:absolute; left:0; top:0; width:120px; height:202px; z-index:2; overflow: hidden'><table width='100%' border='0' height='100%' cellpadding='2' cellspacing='0'><tr><td id='item1head' height='20' class='headtd2' onclick='showme(item1body,this)' align='center'>菜单1</td></tr><tr><td class='bodytd' align='center'>test</td></tr></table></div><div id='item2body' style='position:absolute; left:0; top:202; width:120px; height:202px; z-index:3; overflow: hidden'><table width='100%' border='0' height='100%' cellpadding='2' cellspacing='0'><tr><td id='item2head' height='20' class='headtd1' onclick='showme(item2body,this)' align='center'>菜单2</td></tr><tr><td class='bodytd' align='center'>test</td></tr></table></div><div id='item3body' style='position:absolute; left:0; top:224; width:120px; height:202px; z-index:4; overflow: hidden'><table width='100%' border='0' height='100%' cellpadding='2' cellspacing='0'><tr><td id='item3head' height='20' class='headtd1' onclick='showme(item3body,this)' align='center'>菜单3</td></tr><tr><td class='bodytd' align='center'>test</td></tr></table></div><div id='item4body' style='position:absolute; left:0; top:246; width:120px; height:202px; z-index:5; overflow: hidden'><table width='100%' border='0' height='100%' cellpadding='2' cellspacing='0'><tr><td id='item4head' height='20' class='headtd1' onclick='showme(item4body,this)' align='center'>菜单4</td></tr><tr><td class='bodytd' align='center'>test</td></tr></table></div><div id='item5body' style='position:absolute; left:0; top:268; width:120px; height:202px; z-index:6; overflow: hidden'><table width='100%' border='0' height='100%' cellpadding='2' cellspacing='0'><tr><td id='item5head' height='20' class='headtd1' onclick='showme(item5body,this)' align='center'>菜单5</td></tr><tr><td class='bodytd' align='center'>test</td></tr></table></div><div id='item6body' style='position:absolute; left:0; top:290; width:120px; height:202px; z-index:7; overflow: hidden'><table width='100%' border='0' height='100%' cellpadding='2' cellspacing='0'><tr><td id='item6head' height='20' class='headtd1' onclick='showme(item6body,this)' align='center'>菜单6</td></tr><tr><td class='bodytd' align='center'>test</td></tr></table></div></div></body></html>