The ExList control can group the control columns into two categories: locked and unlocked. The Locked category contains all the columns that are fixed to the left area of the client area. These columns cannot be scrolled horizontally. Use the CountLockedColumns to specify the number of locked columns. The unlocked are contains the columns that can be scrolled horizontally. Use ForeColorLock property to change the foreground color of the control's locked area. Use the Def(exCellBackColor) property to specify the background color for all cells in the column. Use the Def(exCellForeColor) property to specify the foreground color for all cells in the column.