Gets or sets a value indicating whether the ListBox supports multiple columns.
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
A multicolumn ListBox places items into as many columns as are needed to make vertical scrolling unnecessary. The user can use the keyboard to navigate to columns that are not currently visible. Set the HorizontalScrollbar property to true to display a horizontal scroll bar that enables the user to scroll to columns that are not currently shown in the visible region of the ListBox. The value of the ColumnWidth property determines the width of each column.
Available since 1.1