K I have a data grid that is supposed to look like a teachers
grade book. I have created a vertical text header renderer to allow
me to have more compact columns that say the name of an
assignment...However the teachers need to be able to order each
assignment into whatever order they want. I have it working,
displaying the assignment text vertically. However when I try to
drag a column into another position, it gives me this error!
TypeError: Error #1009: Cannot access a property or method of
a null object reference.
I've been trying to figure this out for some time
now, any help would be greatly appreciated. If you need more
information, please let me know...