BCGSuite for MFC
BOOL CBCGPGridCtrl::EnableColumnFilterEdit ( BOOL  bEnable,
int  nColumn,
LPCTSTR  lpszPrompt 
)

Shows or hides the filter edit control for a column.

Use this method to show or hide the filter edit control for an individual column specified by nColumn.

If you need to enable the filter edit control for several columns or disable for all columns, call EnableFilterBar().

Parameters
bEnableSpecifies whether to show or hide filter edit for a column.
nColumnSpecifies a zero-based index of a column to show or hide the filter edit for.
lpszPromptSpecifies a prompt to display within filter edit box.