While working as a developer we all face some syntax problem , So in order to reduce that same redundant syntax search effort everyday Technology people had  compiled very good single page handy sheets which contains syntax and common features of each technology which is also known as Cheat Sheets, And i think every developer should have them.

These Cheat sheets are normally  one-page reference guide

1. .NET Quick Reference

• .Net Format String Download Now (PDF, 123 KB)
• Microsoft .NET Framework 3.5 Commonly Uses Types and Namespaces (PDF)

2.  ASP.NET 2.0 Page Life Cycle & Common Event

• Download Now (PDF, 64KB)
• ASP.NET Page Life Cycle Diagram (PNG)

3. Visual Studio Built-in Code Snippets (C#)

• Visual Studio 2005 – Download Now (PDF, 56 KB)
• Visual Studio 2008 – Download Now (HTML)
• Visual Studio 2005 Default Key bindings C# | VB (PDF)
• Visual Studio 2008 Default Key bindings C# | VB

4. Quick Reference to JavaScript

• Download Now PDF, 453KB
• JavaScript in one page

5. ASP – Active Server Pages & ASP.Net

• Download PDF, 567KB
• General Page Life Cycle
• ASP.NET Runtime Cheat Sheet
• ASP/VBScript

6. Quick Reference to C# common functions and methods

• Core C# and .NET Quick Reference
• C# and VB.NET Comparison Cheat Sheet [Download PDF] , [Word Version]

7. Quick Reference to Regular Expression

• Download Now PDF, 648Kb   
• Regular Expressions

8. SQL – Structured Query Language

• SQL in one page
• SQL Injection Cheat Sheet
• SQL Server Cheat Sheet PDF, 532KB

9. UML – Unified Modeling Language

• Allen Holub’s UML Quick Reference
• UML Quick Reference

10. XML – eXtensible Markup Language

• XML Syntax Quick Reference
• XSLT 1.0 & XPath 1.0 Quick Reference
• XML Path Language (XPATH)
• XML Schema – Structures Quick Reference Card – updated 1/3/2003
• XML Schema – Data Types Quick Reference Card – updated 1/3/2003
• XPath v2.0 Quick Reference Card
• XQuery v1.0 and XPAth v2.0 Functions and Operators Quick Reference Card
• XHTML (PDF)

11. Jquery cheat Sheet

• Download Now PDF
• jQuery 1.2 | jQuery 1.3

12. AJAX

• Microsoft ASP.NET AJAX Library
• Microsoft ASP.NET AJAX Client Life Cycle & Events (PDF)

13. Others

• Download the LINQ CHEAT SHEET
• XAML/WPF
• HTML Character Entities
• RGB Hex Color Chart
• CSS
• Microformats

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