int iX1,iY1, iX2, iY2;
iX1 = iY1 = iX2 = iY2 = 0;
for (int iI = 0; iI < StringGrid1->RowCount; iI++)
{
StringGrid1->Canvas->Pen->Style = psClear;
StringGrid1->Canvas->Brush->Color = iI * 150;
iX1 = 0;
iY1 = iY2;
iX2 = StringGrid1->DefaultColWidth * StringGrid1->ColCount + StringGrid1->GridLineWidth * StringGrid1->ColCount;
iY2 = iY1 + StringGrid1->DefaultRowHeight + StringGrid1->GridLineWidth * 2;
StringGrid1->Canvas->Rectangle(iX1, iY1, iX2, iY2);
}