... variable, 140 , 146 BookService class, 269 Booysen, Ray, 44 5 Bounciness property, 399 br snippet, 230 breadcrumb trail, 139 bridging protocols, 166 Britcliffe, Andy, 40 7 40 9, 44 6 browser ... Graham, 173–1 74 Johnson, Rusty, 40 7 40 9 Lerman, Julie, 2 04 205 Morgridge, Dane, 205–206 Invoke( ) method, 146 , 153 invoking workflows, in Windows Workflow Foundation 4, 145 – 146 IObservable<T>, ... lstItemsWithTemplate template, 361 M machine.config, 226 Main( ) method, 50, 79, 80, 138, 160, 186, 43 6 MainMenu class, 3 54 MainMenu control, 341 MainMenu_Loaded( ) method, 342 , 346 , 349 ,...