First, Qt. The answer is "yes", but in the following trivial sense: Qt is the framework for
GUI development, so it has nothing to do with your code, which looks like ADO.NET. Please see:
http://en.wikipedia.org/wiki/Qt_%28framework%29[
^],
http://qt.digia.com/[
^],
http://en.wikipedia.org/wiki/Ado.net[
^].
Second, NetBeans. The answer is "no", in two related senses of this word. If you mean a platform framework for Java, your code has
nothing to do with Java, please see the last link above. If you mean the NetBeans IDE,
I never heard it supported .NET, I'm pretty much sure it does not. Please see:
http://en.wikipedia.org/wiki/NetBeans[
^],
http://netbeans.org/[
^].
And finally, if we also pay attention for the tag "C++", the general answer will be "no" if you really mean
"C++", and not "C++/CLI" (most likely, the only one kind of C++ which can be used for .NET), because your code sample is in C#. If you nevertheless mean "C++/CLI", it should be noted that you can easily re-write your code sample into C++/CLI, because a .NET language is a .NET language. Please see:
http://en.wikipedia.org/wiki/C%2B%2B[
^],
http://en.wikipedia.org/wiki/C%2B%2B/CLI[
^],
http://www.ecma-international.org/publications/standards/Ecma-372.htm[
^],
http://msdn.microsoft.com/en-us/library/xey702bw.aspx[
^],
http://en.wikipedia.org/wiki/List_of_.NET_languages[
^],
http://en.wikipedia.org/wiki/.net[
^],
http://en.wikipedia.org/wiki/Common_Language_Infrastructure[
^],
http://en.wikipedia.org/wiki/Common_Language_Runtime[
^].
As a conclusion, I must note that the question does not make a whole lot of sense, so I tried to answer formally, but in an informative way.
—SA