window.onload = function(){
        var spread = new GC.Spread.Sheets.Workbook(document.getElementById("ss"),{sheetCount:3});
        var activeSheet = spread.getActiveSheet();
     //データテーブルを手動で作成します。
    var sampleTable = [
         {"ID":10, "Text":"Text-10", "Check":true},
         {"ID":20, "Text":"Text-20", "Check":false},
         {"ID":30, "Text":"Text-30", "Check":false},
         {"ID":40, "Text":"Text-40", "Check":true},
         {"ID":50, "Text":"Text-50", "Check":true}
     ];
     //このデータテーブルを連結します。
    activeSheet.setDataSource(sampleTable);
 }