Hi, I'm using the spreadsheet control and i'm having an issue with date columns.
When I enter a valid date, it works fine.
but when I enter an empty date (clicking delete on date column, or emptying out the contents)
the date gets stored as "new Date(0,0,-1)" ["Sat Dec 30 1899 00:00:00 GMT+1130 (New Zealand Daylight Time)" in my local time]
obviously, this is incorrect, and it should store the value as NULL.
it happens regardless of whether the schema/model has nullable=true.
If I manually modify the dataItem via JS, it stores it correctly as null.
I have a dojo demo set up which replicates the issue.
Doing some investigation into the kendo code, it seems to be caused by the serialToDate method of the spreadsheet.