Wpf oneway binding not updating is the ebook doubleyourdating a scam
As of writing, all properties except for the Text property, is updated as soon as the property changes (Property Changed), while the Text property is updated when focus on the destination element is lost (Lost Focus).Default is, obviously, the default value of the Update Source Trigger.For those situations where you need more control of the process, this property will definitely help though.Just make sure that you don't update the source value more often than you actually need to.The other options are Property Changed, Lost Focus and Explicit.The first two has already been described, while the last one simply means that the update has to be pushed manually through to occur, using a call to Update Source on the Binding.When an action happens that causes a property to change that would not normally cause an update in the WPF controls bound to it, you raise the event and name the modified property. Once ready replace the XAML of the main window with the code below: property that combines the first and last names into a single string.
The first one is set to Explicit, which basically means that the source won't be updated unless you manually do it.
This property can is set to an object to use as the source for its data bindings and those of its children.