Index

D

data

abstracting from main program, 357-365

abstracting from source, 336

converting strongly typed data to string, 542

detecting changed cells and cells clicked by user, 368-371

enabling updating of disconnected, 345-351

kinds of XML, 571

manipulating with ListView control, 256

presenting in ListView control, 257-264

reading and writing binary, 382-386

retrieving with DataGrid control, 332-333

Union data structures, 387-393

wrapping file stream in binary reader, 384

writing in XML, 531-543

data adapter, 350, 351

data binding, 38-49

data editing form, 68-72

adding Basic Data controls, 69-70

adding controls to Position tab, 70-71

first tab of, 70

form controls for PowerUser project, 69

setting up PowerUser form, 68-72

data entry, 203-238, 327-393

abstracting shared data from program, 357-365

common validation items for text box input, 455-456

data streams, 379-387

DataGrid control and data retrieval, 332-333

DataGrid validation, 352-374

DB_data project, 329-332

disconnected recordsets, 334, 374

events for mouse-based, 216

form for Keys project, 205

function of database in, 327

KeyDown, KeyPress, and KeyUp events, 204-205

KeyDown delegate for Keys project, 206

KeyEventArgs properties, 205

main sources of errors, 395

marquis selection within PictureBox, 230-238

MouseTrap project, 216-229

null arguments in KeyPress events, 214-215

observing key events, 214

on-the-fly validation and keyboard, 204, 214-215

overview of, 203-204

RS–232 devices and, 375-378

setting up ADO.NET Connection object, 328-329

trapping key events in Keys project, 207-209

TreeView control for, 291-292

Union data structures, 387-393

updating DataGrid with SQL commands, 351-352

USB and barcode readers, 378-379

data entry controls. See controls

data presentation, 117-201. See also accessibility; internationalization and localization; MDI applications; SDI

context menu in MDI applications, 152-153

externalizing resources, 159-173

internationalization and localization of, 153-159

keeping track of SDI child forms, 119-137

localized data-entry example, 173-192

multiform SDI example, 119-137

multiple-document interface, 140-152

object-oriented GUI and, 239-240

programming guidelines for accessibility, 192-193

properties for accessibility, 193-194

running multiform SDI, 137-140

single-document interface, 117-119

data sources

disconnected data as, 374

serial devices as, 375-378

types of, 374

USB devices and barcode readers, 378-379

data streams. See streams

data structures for Golf project, 649-660

code for IHoleDetails collection classes, 650-660

overview of, 649-650

data types for drag-and-drop operations, 282

DataAdapter object (ADO.NET), 328

database class for Golf project, 664-669

databases

converting connections to, 335-336

function in data entry, 327

performance of data retrieval in large, 341

TreeView control performance in VB 6.0, 573-577

types of objects in ADO.NET, 327-328

using disconnected recordsets, 334

data-bound controls, 38-49

DataBound project, 38-49

C# code listing for, 40-44

VB code listing for, 44-49

White wine tab for, 39

DataGrid control. See also GridRestrict project

about, 38

data retrieval with, 332-333

disconnected data as data source, 374

in Golf project, 644, 647, 696-697

validating cell entry in Golf project, 685-688

validation example in GridRestrict project, 352-353

DataReader object (ADO.NET), 328, 329

date and time displays, 170-171, 189

DateTimePicker control, 35, 189

DB_data project, 329-332

DB_Grid project

adding delegates to buttons, 336-337

adding initialization code to constructor, 337-341

adding namespaces, 334

adding tables, getting data, and ending connection, 342

Inventory table, 344, 345

modifying Dispose method, 342-343

Parts table, 344, 345

setting up, 333

updating Commit button delegate, 345-351

debugging

regular expressions, 527-528

with trace console window, 429-430

delegates

adding Photo project, 302-305

assigning dynamically to events, 123

for ErrProvider project, 398-399

FocusForm, 136-137

handling events, 32, 89-94, 135

KeyDown, 206

Movie Rental Program, 289-290

OpenWindow, 134

Paint, 232-233

PowerUser menu, 94

QuickTree, 626

SDISample project event, 124-133

testing call by MenuItem, 134-135

Tracing project event handling, 424-425

TreeView control, 305-309

Delete key, intercepting keystrokes, 222-228, 485

DES (Data Encryption Standard), 535

diagnostics

creating event logger for, 407-416

logging in .NET, 406-407

viewing event log, 416-417

dialog boxes

creating explicit error messages, 401-405

modality of error, 405-406

directory structure

car mileage expense report example, 175-176

Photo project, 293-294

disconnected recordsets

about, 334

as DataGrid data source, 374

enabling updating of, 345-351

Dispose method, 342-343

docking, 320-325

drag-and-drop operations. See also Photo project

adding method in Photo project, 302-305

conditions required for, 281-282

data types for, 282

mouse event handlers for, 277-281

preventing bad drop zones, 315-319

setting up MovieList drag-and-drop PictureBox, 286