Specifying Cell Status Values

True DBGrid recognizes 16 distinct cell status values that are used in code to indicate the disposition of a cell. A cell status value is a combination of four separate conditions. These conditions are enumerations which have the flag attribute, which means that they can be combined with the Or operator:

Current Cell	The cell is the current cell as specified by the Bookmark, Col, and SplitIndex properties. At any given time, only one cell can have this status. When the floating editor MarqueeStyle property setting is in effect, this condition is ignored.
Marquee Row	The cell is part of a highlighted row marquee. When the MarqueeStyle property indicates that the entire current row is to be highlighted, all visible cells in the current row have this additional condition set.
Updated Cell	The cell contents have been modified by the user but not yet written to the database. This condition is also set when cell contents have been modified in code with the Text or Value properties.
Selected Row	The cell is part of a row selected by the user or in code. The SelectedRowCollection contains a bookmark for each selected row.

True DBGrid defines the following constants corresponding to these cell conditions:

CellStyleFlag.CurrentCell	Applies to the current cell.
CellStyleFlag.MarqueeRow	Applies to cells in a highlighted row marquee.
CellStyleFlag.UpdatedCell	Applies to cells that have been modified.
CellStyleFlag.SelectedRow	Applies to cells in a selected row.

True DBGrid also defines the following constants, which are not meant to be combined with those listed earlier:

CellStyleFlag.AllCells	Applies to all cells.
CellStyleFlag.NormalCell	Applies to cells without status conditions.

Use CellStyleFlag.AllCells to refer to all cells regardless of status. Use CellStyleFlag.NormalCell to refer to only those cells without any of the four basic cell conditions described earlier.