void CBCGPGridCtrl::EnableHeaderSelectAllMarker | ( | BOOL | bEnable = TRUE | ) |
Shows or hides "Select All" grid marker.
bEnable | If TRUE, the "Show All" marker will be shown. If FALSE, the marker will be hidden. |
Use this method to show or hide the "Select All" grid marker (triangle located at the top-left corner). When this marker is enabled and user clicks it, all grid items will be selected.