RemoveUnmarkedRows

Declaration:

TDataTable.RemoveUnmarkedRows (FirstRow, LastRow: integer; CSMask: byte): integer;

The method RemoveUnmarkedRows deletes all rows in the range from FirstRow to LastRow which do not contain any data cell whose cell state (partially) matches the parameter CSMask (i.e. a bitwise AND of the cell state and CSMask is zero). The size of the table is automatically decreased by the number of matched rows. The function returns the number of deleted rows if everything is OK or -1 if the FirstRow or the LastRow parameter is out of range.

Hint:

Setting both FirstRow and LastRow to zero values is a shortcut for setting FirstRow=1 and LastRow=NrOfRows, i.e. the entire data table is scanned for matching cells if both parameters are set to zero.