Command execution¶

A view model that loads data, lets a user edit it, and sends it back raises questions a single ReactiveCommand does not answer on its own. When should it load? How should saving be gated on both validity and an in-flight save? How should a failure reach the screen? Commands covers the properties a command exposes for this. Asynchronous commands covers keeping the command's own work visible to them.

A viewmodel using ReactiveUI that loads and sends data walks through one such view model end to end.