COXMulticomboBox class

Ultimate ToolBox COXMulticomboBox class implements a combo box with more than one column. Only one column will be transferred to the edit (or static) control. The other columns are shown in the dropdown listbox, but this is only extra information by which the user can exactly choose the item he wants. This class is derived from MFC’s CComboBox
Features:
•	Can Have Multiple columns in each item of the combo box 
•	Interface is identical to CComboBox with one extra Column number parameter 
•	Like in Access97