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Description
Sets or returns the background pattern of the specified chart region.
C#
vb.net
Remarks
This is an instance of ChartFillPattern.
For chart regions that normally have a filled background (such as Chart.ChartArea), this will be Solid by default. For chart regions that normally have no background (such as ChartText instances like Chart.ChartTitle) this will be None by default.
Setting Pattern to null will throw an ArgumentException.