activeSheet.setRowCount(3, GcSpread.Sheets.SheetArea.viewport);
activeSheet.setColumnCount(3, GcSpread.Sheets.SheetArea.viewport);
activeSheet.isPaintSuspended(true);
//set value
for (var r = 0, rc = activeSheet.getRowCount(); r < rc; r++) {
for (var c = 0, cc = activeSheet.getColumnCount(); c < cc; c++) {
activeSheet.setValue(r, c, r + c);
}
}
activeSheet.isPaintSuspended(false);
$("#button1").click(function () {
var printInfo = activeSheet.printInfo();
printInfo.footerCenterImage("logo.jpg");
activeSheet.printInfo(printInfo);
spread.print(0);
});