I would like to use a custom formula on date validation: similar to this approach. Although I need the cell editor to be a datepicker (calendar view).
Something like this, although it shows empty calendar
Something like this, although it shows empty calendar
validation: {
dataType:
"date"
,
from:
"B1"
,
to :
"C1"
allowNulls:
true
,
type:
"reject"
,
titleTemplate:
"Date validaiton error"
,
messageTemplate:
"Invalid date"
}