I have a program that I developed in C #, and it currently works in Microsoft.NET Framework version 4.0. I upgraded to Visual Studio 2012 and also installed Microsoft.NET Framework v4.5. Before I installed the .NET Framework v4.0, it looked like my program:

Now that I upgraded to the .NET Framework v4.5, it looks like this:

, TreeView , ? , . / .NET Framework v4.5 (v4.0.30319.17929 v4.5.50709, ), 15 . , , ( .NET Framework v4.5)? , v4.0, v4.5 ?