I need help creating group headers and groupboxitems at runtime.  Since I can have several headers I need to be able to loop the list determine if the item is a group header and if it is I need to be able to loop through all of the listbox items associated with a particular header.    I need to be able to do this for each set of items associated with each header in the listbox.  I write the data to a file and read from a file at startup.