F

fat-client applications, 22, 24

FieldName attribute example

AttributeUsage attribute, 307–309

code listing, 307

specifying optional parameters, 309–310

specifying required parameters, 309

fields (member variables). See also properties

accessing instance fields outside the class, 38

accessing static fields outside the object, 37–38

casing of, 76–77

as data members of classes, 85

defined, 85

marking unsafe, 206

pointers to, 212–214

public, in structs, 102

readonly fields, 99–101

scope, 35

scope clashes for local variables and, 37–38

usage conventions, 81

FIFO (First In Last Out) structure

Queue class, 256

Queue<T> generic class, 283

file associations, setting with ClickOnce, 571

File class

Copy() method, 1197

Delete() method, 1197

described, 1188

FileInfo class versus, 1189

Move() method, 1197

file management. See file system operations

File System Editor (ClickOnce), 570

file system operations. See also specific classes

buffered streams, 1207

classes for, 1188

file browser example, 1192–1197

file security, 1187, 1222–1226

FilePropertiesAndMovement application, 1197–1201

moving and deleting folders, 1197

moving, copying, and deleting files, 1197–1201

namespace for, 1187

reading and writing to binary files, 1208–1213

reading and writing to text files, 1213–1219

reading from files, 1201, 1202–1204

streams, 1205–1207

writing to files, 1201, 1204–1205

File Types Editor (ClickOnce), 571

FileInfo class

CopyTo() method, 1197

Delete() method, 1197

described, 1188

Exists property, 1189–1190

File class versus, 1189

instantiating, 1189

methods, 1191–1192

MoveTo() method, 1197

properties, 1190, 1191

streams versus, 1206

FileProperties application

ClearAllFields() method, 1194

currentFolderPath member field, 1194

DisplayFileInfo() method, 1194–1195, 1196

DisplayFolderList() method, 1195, 1196, 1197

event handlers, 1195–1197

events, 1194

overview, 1192–1193

using statements, 1193–1194

FilePropertiesAndMovement application

ClearAllFields() method, 1201

controls, 1198

DisableMoveFeatures utility function, 1201

DisplayFolderList() method, 1200–1201

enabling and disabling controls, 1200

event handlers, 1199–1200

overview, 1197–1198

FileStream class

BinaryFileReader application, 1210–1213

closing streams, 1209

constructors, 1208–1209

described, 1207

enumerations, 1208

information required for instantiating, 1208

reading data, 1209

StreamReader class with, 1215

StreamWriter class with, 1216

writing data, 1209–1210

FileSystemInfo class, 1188

Finalize() method

for compiled destructors, 199, 200

described, 107, 108

finalizers (destructors)

in C++ versus C#, 200

defined, 86

as Dispose() method backup, 202–203

overview, 199–200

performance and, 200

syntax, 200

finally blocks

defined, 330

error trapping process and, 330

MortimerColdCall example, 343

omitting, 331

for releasing database resources, 586, 587–588

in SimpleExceptions class, 334

syntax, 331

throwing exceptions from, 339

Find() method (List<T> generic class), 280

FindAll() method (List<T> generic class), 280

finding message queues, 1103–1104

First In Last Out (FIFO) structure

Queue class, 256

Queue<T> generic class, 283

fixed keyword for pointers, 213–214

float type

converting integers to, 159–162

overview, 42

floating-point types, 42. See also specific types

flow control. See also specific statements

conditional statements, 47–51

jump statements, 54–55

loops, 51–54

FlowLayoutPanel control (Windows Forms), 774–775

focus, gaining and losing for controls, 761

folders or directories. See also file system operations

configuring for assemblies, 460–462

defined, 1188

securing with ASP.NET, 971–973

FolderTree custom control (Windows Forms)

adding an image for Toolbox display, 794

adding properties for handling files and folders, 791–792

deriving from TreeView control, 789

FileNode class for loading files, 789–790

FolderNode class for loading folders, 789, 790–791

further enhancements possible for, 794

initializing file system loading, 792–794

testing the control, 794

Font class

Height property, 879–880

overview, 877

FontFamily class, 877, 879

fonts and font families

classes for, 877

defined, 876

enumerating font families, 878–880

measuring size of text, 876

selecting fonts, 877

terminology, 876–877

for statements

overview, 51–53

scope of local variables declared in, 36–37

ForEach() method (List<T> generic class), 281

foreach statements

iterating through collections with, 54, 246

overview, 54

for reading Stack values, 254

as syntactical shortcuts, 248

Form class

application example using, 752

closing forms, 782

controlling appearance of forms, 784–786

FormBorderStyle property, 785

Icon property, 785

inheritance from Control class, 780

initialization, 781

instantiating, 781

Invalidate() method, 884–886

methods for keyboard events, 891

methods for mouse events, 890

properties relating to form startup, 782

setting colors for forms, 785

Show() method, 782

ShowDialog() method, 782–784

ShowInTaskbar property, 782

system menu and, 784–785

user interaction with, 782–784

visibility of forms and, 781, 782

Format() method (String class), 231

formatter provider (.NET Remoting), 1012, 1047–1048

formatters

Message Queuing, 1107–1108

.NET Remoting, 1012, 1025

formatting expressions

format specifiers, 230

FormatVector example, 233–235

how strings are formatted, 231–233

interfaces for, 223

need for, 229

FormatVector struct, 233–235

forms. See Web Forms; Windows Forms

FormView control, 936, 937–938

FromFile() method (Image class), 871

FTP, as high-level protocol, 1262

function pointers, 171. See also delegates

functions. See also constructors; finalizers (destructors); methods; properties

abstract, 117

association with class required for, 86

calling base versions, 116–117

defining for structs, 101–102

function members of classes, 85–86

methods versus, 86

overview, 86

standard function calls, 78–80

future of distributed programming. See WCF; Web services specifications