Q:

knockout validation with custom validator only fires once

Im using a knockout validation to create a custom validator and am trying us it with a viewmodel created with the knockout mapping plugin. The validation fires the first time I run the code but not when I click save or change a value in the inputs.
In the fiddle below im trying to to make sure LL is less than L and L is less than H.
In the test data I have a L value that is less than LL so you can see there is one error reported, however when I correct the data in the input field the validator doesn't fire.
http://jsfiddle.net/davidoleary/quSpZ/

A:

Here is a working fiddle.
http://jsfiddle.net/quSpZ/4/
I restructured your code to have a ScheduleEntry object and moved the validation inside that object.  That object is also set up to have observables for the properties so they will trigger the validation when they change.

