Adds a new column of cells to the right of the last column.
Original signature is '- (void)addColumn'
Available in Mac OS X v10.0 and later.

C# | Visual Basic | Visual C++ |
public virtual void AddColumn()
Public Overridable Sub AddColumn
public: virtual void AddColumn()

- Available in Monobjc Bridge: 10.6 (For Mac OS X 10.6 and later), 10.5 (For Mac OS X 10.5 and later)