Columns: IListViewColumns;
The Columns property returns the collection of component columns.
The columns are added and edited in the Column Editor dialog box. To open this dialog box:
Select the Columns context menu item for the ListView component placed on the form.
Click the 
button of the Columns property of the ListView component in the object inspector.
Double-click on the Columns property of the ListView component in the object inspector.
The Column Editor dialog box looks as follows:
The Add button is used to add columns.
NOTE. The properties of columns selected in the list are determined in the object inspector.
The Delete button is used to delete columns.
Clicking the Close button closes this dialog box.
See also: