Index U

U

UDDI (Universal Description, Discovery, and Integration), 528

Underline property (FontInfo class), 505

UniqueConstraint class, 345

Unit structure (Web pages), 504

unmanaged code, 11

UnsignedTinyInt type (OleDbType), 373

untyped datasets, 320

computing child values, 429-438

schemas for, 421-425

updatable data sources for DataGrid controls, 286-290

Update property (OleDbDataAdapter class), 390

Update( ) (OleDbDataAdapter class), 337, 338, 399, 403

UpdateCommand property (OleDbDataAdapter class), 338, 392, 448-450

updating DataTable rows with forms, 458

updating rows in local datasets, 402-409, 513-514

updating secure Access databases, 588-594

User ID clause, connection strings, 362

user input validation, 368-371, 492-493

user security (role-based), 572-574

user security (role-based), ADO.NET and, 575-594

creating accounts and permissions, 577-581

design issues, 576-577

selecting from secure databases, 582-588

updating secure databases, 588-594

Users group account, 577

UTF-8 encoding, 131