I want to use the TElDateTimePicker control in a way where property checked is always the opposite of Unassigned.
When not checked, the control should show a blank, or maybe even better, a user defined "string".
I use it all over my application
I encapsulate it in a class with an interface INulldateTime, with "properties" DateTime: TDateTime, and IsNull: boolean.
It must also react automatically to set Unassigned = not checked, when the checkbox change.
At the moment I need code repeated all over to catch events and manually perform this.
Would it be possible to add some property to make the control work this way?