$(document).ready(function () 
{
    new GC.Spread.Sheets.Workbook(document.getElementById("ss"),{sheetCount:3});
    var sheet = spread.getActiveSheet();
    sheet.setValue(0, 0, "ABC", GC.Spread.Sheets.SheetArea.viewport);
    
    // Set it to be always in input mode.
      spread.bind(GC.Spread.Sheets.Events.EnterCell, function (event, data) 
     {
        var activeSheet = data.sheet;
        activeSheet.startEdit(true);
     });
});