Errors are an important part of a service contract, even though some contracts omit them for brevity. Specifying the errors that can occur in a service forms an important part of the design-by-contract approach to defining service operations.
How can I check if .Net 3.5 Service Pack 1 is installed?
If you want to check the version of .Net installed in your system, there are number of ways to do it.
What is a ViewState? Introduction A Web application by nature is stateless, which means information is not persisted with each round trip of a web-page. Any information entered in by the user and sent to the server is not returned to the client back. To get over this limitation of Web Programming, the ASP.Net framework includes several state-management features like:- * View state * Control state * Hidden fields * Cookies * Query strings ViewState is a feature used by ASP.Net page framework to preserve page and control values between round trips.