Index_O

O

object activation, types of, 293–294

object constructors, 46–48

object creation, 290

object isolation, single-call object, 293

object methods, invocation of, 8

object properties, invocation of, 8

object-oriented programming

inheritance, 41–46

introduced, 15–16, 40–41

object constructors, 46–48

ObjectPooling attribute, 64

objects, 40. See also specific objects

dynamic creation, 313–317

type, 308–310

OCX controls. See ActiveX controls, hosting in Windows Forms

OLE DB, 191–194

On Error GoTo statement, 66

OnKeyDown method, 185

OnKeyPress method, 185

OnKeyUp method, 185

OnMouseDown method, 183, 185

OnPaint method, 180–181

OnResize method, 182

operating system functionality, 16

optimistic concurrency, 207

OrdinaryObject object, 253

Overridable keyword, 46

override keyword, 44

Overrides keyword, 44

overriding methods, 44–46