Read and write registry RegistryKey Create delete

namespacewindowsformsapplication1{ Public Partial classForm1:form { PublicForm1 () {InitializeComponent (); }        Private voidForm1_Load (Objectsender, EventArgs e) {             This. ListBox1.Items.Clear (); RegistryKey ABC=Registry.localmachine; RegistryKey Sub= ABC. OpenSubKey (@"Software",true); RegistryKey Test= Sub. CreateSubKey ("clp2016test"); Test. SetValue ("TestApp","DASFDF"); foreach(stringStrinchSub. Getsubkeynames ()) {LISTBOX1.ITEMS.ADD ("subkey Name:"+str); RegistryKey SubName=Sub.                OpenSubKey (str); foreach(stringSsubnameinchSubName. GetValueNames ()) {LISTBOX1.ITEMS.ADD (Ssubname+"values:"+SubName.                GetValue (Ssubname)); }            }                   }        Private voidButton1_Click (Objectsender, EventArgs e) {             This. ListBox1.Items.Clear (); RegistryKey ABC=Registry.localmachine; RegistryKey Sub= ABC. OpenSubKey (@"Software",true);//PermissionsSub. Deletesubkeytree ("clp2016test");//Delete            foreach(stringStrinchSub. Getsubkeynames ()) {LISTBOX1.ITEMS.ADD ("subkey Name:"+str); RegistryKey SubName=Sub.                OpenSubKey (str); foreach(stringSsubnameinchSubName. GetValueNames ()) {LISTBOX1.ITEMS.ADD (Ssubname+"values:"+SubName.                GetValue (Ssubname)); }            }        }    }}

Read and write registry RegistryKey Create delete