framework 4 การใช้

• I am using VS 2010 and . NET framework 4.
• On 19 October 2009, Microsoft released Beta 2 of the . NET Framework 4.
• At the same time, Microsoft announced the expected launch date for . NET Framework 4 as 22 March 2010.
• For a time, the Microsoft Visual Studio and Borland's integrated development system were the only integrated development environments ( IDEs ) that could provide this ( although, the SDK is downloadable for free separately from the entire IDE suite, from Microsoft Windows SDK for Windows 7 and . NET Framework 4 ).