Question

I’m using the WPF toolkit’s Calendar control to allow users to select a date. If the date is not yet selected then the property the SelectedDate is bound to is Null. This makes the Calendar default you January 1, 0 AD. I’d like to do something like

SelectedDate='{Binding UserPickedDate, TargetNullValue=Today, Mode=TwoWay}' 

But both ‘Today’ and ‘Now’ throw binding errors. Can I use TargetNullValue to set the default date to Today or Now?

Answer 1

Try this:

xmlns:sys='clr-namespace:System;assembly=mscorlib' ...  TargetNullValue={x:Static sys:DateTime.Now}