Detecting the NETFramework version (excerpt) that the computer has installed

　　　

1         ///2         ///detecting netframework versions of computers that have been installed3       ///4         Internal voidgetversionfromregistry ()5         {6             using(RegistryKey Ndpkey =Registrykey.openbasekey (Registryhive.localmachine,7REGISTRYVIEW.REGISTRY32). OpenSubKey (@"software\microsoft\net Framework setup\ndp\"))8             {9                 foreach(stringVersionkeynameinchndpkey.getsubkeynames ())Ten                 { One                     if(Versionkeyname.startswith ("v")) A                     { -RegistryKey Versionkey =Ndpkey.opensubkey (versionkeyname); -                         stringName = (string) Versionkey.getvalue ("Version",""); the                         stringSP = Versionkey.getvalue ("SP",""). ToString (); -                         stringInstall = Versionkey.getvalue ("Install",""). ToString (); -                         if(Install = ="")//no install info, ust be later -Console.WriteLine (Versionkeyname +"  "+name); +                         Else -                         { +                             if(sp! =""&& Install = ="1") A                             { atConsole.WriteLine (Versionkeyname +"  "+ name +"SP"+sp); -                             } -                         } -                         if(Name! ="") -                         { -                             Continue; in                         } -                         foreach(stringSubkeyNameinchversionkey.getsubkeynames ()) to                         { +RegistryKey subkey =Versionkey.opensubkey (subkeyname); -Name = (string) Subkey.getvalue ("Version",""); the                             if(Name! ="") *SP = Subkey.getvalue ("SP",""). ToString (); $Install = Subkey.getvalue ("Install",""). ToString ();Panax Notoginseng                             if(Install = ="")//no install info, ust be later -Console.WriteLine (Versionkeyname +"  "+name); the                             Else +                             { A                                 if(sp! =""&& Install = ="1") the                                 { +Console.WriteLine ("  "+ SubkeyName +"  "+ name +"SP"+sp); -                                 } $                                 Else if(Install = ="1") $                                 { -Console.WriteLine ("  "+ SubkeyName +"  "+name); -                                 } the                             } -                         }Wuyi                     } the                 } -             } Wu}

Detecting the NETFramework version (excerpt) that the computer has installed