Index_O

O

object serialization, role in persisting Graphics objects, 283-289

objects. See also persisting objects

serializing, 285

serializing and deserializing, 287-289

Observer design pattern

applying, 15

overview of, 12-15

ODBC .NET data provider, purpose of, 438

Odbc prefix, meaning of, 439

okButton control, using with LoginForm class, 378-379

OLE DB connection strings, building, 441

OLE DB .NET data provider, purpose of, 438

OleDB prefix, meaning of, 439

OleDbCommand objects, constructing, 446-447

OleDbConnection class, Provider property of, 440

OleDbConnection objects, constructing, 474

OnClosing method

of Document class, 168

overriding for use with FindDialog object, 157

OnColumnChanged method

of protected method of Model class, 38

of StyledTextArea class, 78

OnGotFocus method of Document class, purpose of, 168

online store application. See BuyDirect application

OnLineChanged method

of Model class, 38

of StyledTextArea class, 78

OnLineCountChanged protected method in Model class, overview of, 38

OnLongestLineCharCountChanged protected method in Model class, overview of, 38

OnMdiChildActivate method of XMLEditor class, overview of, 179-180

OnMyEvent protected virtual method, creating, 17

OnPaint method

of LineNumberView class, 58-59

using with Rect object, 311-312

of View class, 5-8, 49-51

OnTitleChanged method of Document class, purpose of, 168

OnWhichHandle method, using with Rect object, 313

OnXXX methods, purpose of, 4-5

Open method

of Connection object in ADO.NET, 441

of DataView class in ADO.NET, 462

OpenDocument method of XMLEditor class, overview of, 181

Oracle .NET data provider, purpose of, 438

OrderDetails table in BuyDirect application, contents of, 546

Orders table in BuyDirect application, contents of, 545

Ordinal property of DataColumn class, explanation of, 460

originators in Memento pattern, purpose of, 289