Index_E

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Index

E

early binding vs. late binding, 62–65
function overloading and, 62–63
overview of, 62
returning values from functions, 63–65
EditButtonColumn control, 332
Edit menu, 27
Edit System Variable dialog box, 579
elements, 116, 190–92. See also configuration elements
else statements, 67
e-mail capacity, adding to Web applications, 246–51
Enable attribute, <processModel>, 554
EnableClientScript property, BaseValidator, 264
enabled attribute, <trace>, 520
Enabled property, BaseValidator, 264
enableKernelOutputCache attribute, <httpRuntime>, 523
EnableSessionState attribute, @Page directive, 196
enableSessionState attribute, <pages>, 533
enableVersionHeader attribute, <httpRuntime>, 523
enableViewState attribute, <pages>, 533
EnableViewStateMac attribute, @Page directive, 196
enableViewStateMac attribute, <pages>, 402, 533
encapsulation, 84
encryption
password storage and, 149
SSL, 165, 428
end user license agreement (EULA), 568
enumerations
declaring, 60
RegLogin example, 375
as value data type, 53
Environment Variables, 579
equality operator (==), 59
error handling
adding, 80–82
checking return values, 78
error types, 77
structured, 78–80
throwing exceptions, 79
Web Form pages, 224
ErrorMessage property, BaseValidator, 264
error messages
ASP classic, 483–84
ASP.NET, 496
ErrorPage attribute, @Page directive, 196
errors
404-Not Found errors, 118–23
logic errors, 492
runtime errors, 491–92
semantic errors, 491
syntax errors, 491
types of, 77
<errors> child element, <customErrors>, 535–36
EULA (end user license agreement), 568
EventArgs, 369, 371
event-based programming, 508
event handlers
ASP.NET, 191, 369–70
controls, 223–24
DataGrid controls, 339–40
DataList controls, 343–44
overview of, 220–21
Page_Error, 224
Page_Load, 220
postbacks, 382
server controls, 370–71
Web applications, 45
Web Form pages, 221–23, 227
event keyword, 370
EventName, 370–71
events
creating, 369–70
execution order, 372–73
overriding inherited, 371–72
raising, 369–70
RegLogin example, 382–86
exception handling. See error handling
ExecuteReader method, SqlDataReader, 322
ExecuteScalar method, OleDbCommand, 296
ExecuteXmlReader, 294
execution Timeout attribute, <httpRuntime>, 523
exiting Visual Studio .NET, 29–30
expiration, caching, 456–57
Explicit attribute, 196, 527
expressions, 50–51
extension attribute, <compilation>, 529

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JavaScript EditorJavascript debugger     Javascript examples