Differences between .net 3.5 and 4.0

Question

Can any one please illustrate difference between c#.net 3.5 and 4.0 and ASP.net 3.5 and 4.0

Vulpes · Answer

Regarding the differences between C# 3.0 (there was no 3.5) and C# 4.0 briefly these are:- 1. Support for late binding and interop with dynamic languages using the 'dynamic' keyword. 2. Optional and named parameters. 3. Covariance and contravariance of type parameters in generic interfaces and delegates. 4. Miscellaneous improvements to COM interop.

Mayur Gujrathi · Answer

Thanks Piyush

Mayur Gujrathi · Answer

Thanks Piyush

piyush sardhara · Answer

ASP.NET 3.5: There is no direct method to access data from client side. We can go for any of these methods 1)Pagemethods of script manager 2)ICallbackEventHandler interface 3)XMLHttphanlder component ASP.NET 4.0: In this framework there is an inbuilt feature for this. Following are the methods to implement them. 1)Client data controls 2)Client templates 3)Client data context