Column Event
Fired for each column.
Syntax
spsite.on('Column', [callback])
Callback
The 'callback' is called when the 'Column' event is emited.
function(e){ }
The argument 'e' has the following properties:
e.columnType e.name e.displayName e.isRequired e.columnName
Remarks
This event is fired as the result of a call to DescribeList.