... .NET include Visual Basic .NET, Micr osoft Visual C# .NET, Microsoft Visual C+ + .NET, and support for ot her languages. I n addition, Microsoft offers Visual Basic .NET St andard, w hich doesn’t ... ct ion Cla ss An inst ance of the SqlConnection class can int erface direct ly wit h a SQL Serv er dat a source. Use a const ructor st at em ent t o inst antiat e a SqlConnect ion object from ... a SqlConnect ion object is open, you cannot use the SqlConnect ion obj ect for any other purpose except t o close t he connect ion. Closing a SqlDat aReader obj ect releases it s associat ed...