Client script oldValue always empty

[Brian Lancaster]

I am writing an on Change script for the change module.   When I try and if (newValue == 'This' && oldValue == 'that') it is not working.   So I did a alert(newValue) along with an alert(oldValue) and oldValue is away returning as empty.   What might be causing oldValue not to return anything?   Just note that newValue is always returning what I expect it to.

[Raghu Loganatha]

Brian,

OldValue will return null if you are changing from None to xxx. Can you try changing twice ?
Once from None to a different value and then to another value ?

[Brian Lancaster]

Yes I know how it works.   I have changed it twice and it returns empty still.

[vinothkumar]

Hi Brian,

It will contains the value only when the record was loaded into the form.

[Brian Lancaster]

So what you are saying is oldValue is useless as when the form load it will always be empty because the value when the form is loaded is empty.   Is there a way to get the previous value?