Index_E

E

Each… loops, 70–71

EditButtonColumn control, 328

Edit menu, 27

Edit System Variable dialog box, 573

Else statement, 63

e-mail, sending, 242–47

emulators, 271

enable attribute, <processModel>, 548

EnableClientScript property, Validation controls, 260

enabled attribute, <trace>, 514

Enabled property, Validation controls, 260

enableKernelOutputCache attribute, <httpRuntime>, 517

EnableSession property, WebMethod attribute, 410

enableSessionState attribute

@ Page directive, 192

<pages>, 527

enabling, 96–97

@ EnableSessionState directive, 190

enableVersionHeader attribute, <httpRuntime>, 517

enableViewState attribute

@ Page directive, 192

<pages>, 527

enableViewStateMac attribute

@ Page directive, 192, 397

<pages>, 527

encapsulation, 79

encryption. See also SSL (Secure Sockets Layer)

password protection, 145

storing sensitive data, 107

Enter_ServerClick event handler, 232

enumerations, 59, 371

Environment Variables, 573

ErrorHandler label, 73

error handling, 72–78. See also debugging

application configuration and, 125

custom 404 handler, 114–19

disabling debugging and, 489

On Error statement and, 73–74

exception handling, 74–78

overview of, 72–73

Web Forms pages, 220

ErrorMessage property, Validation controls, 260

error messages, ASP.NET, 490

errorPage attribute, @ Page directive, 192

EventArgs, 365, 367

event-based programming, 502

EventHandler, 365–66, 378

event handling

DataGrid, 332–34

DataList, 339

defined, 187

server controls, 366–67

Web applications, 45

Web Forms, 216–20, 223

Event keyword, 366

EventName, 366–67

events

creating, 365–66

execution order, 368–69

overriding inherited, 368

raising, 365–66

RegLogin control, 378–82

exception handling

defined, 73

errors, 74

Try…Catch…Finally, 74–75

Exceptions.aspx, 75–78

ExecuteReader.aspx, 295–97

ExecuteReader method, 319

ExecuteScalar.aspx, 293–94

ExecuteScalar method, 292–93

ExecuteXmlReader.aspx, 288–90, 298

ExecuteXmlReader method, 290

executionTimeout attribute, <httpRuntime>, 517

Exit command, 30

expiration, cache, 450–51

explicit attribute

@ Page directive, 193

<compilation>, 521

Export Template menu option, 139

expressions, 50–51

extension attribute, <compilation>, 523