B4J Question [abmaterial] build a excel file.

[liulifeng77]

hi,
I build a exel file using jexcel library in a page, but this file can't be deleted! the system show that the file is in use."the operation could not be completed because the file is already open in java(TM)Plateform SE binary." (translated into English,MY operation system language is Chinese),any suggestions will be aprreciated! thanks!

Sub SaveTable 'ignore
    'first we create a writable workbook.
    'the target file should be a NEW file.
    Dim newWorkbook As WritableWorkbook
    newWorkbook.Initialize(File.DirApp, "1.xls")
    Dim sheet1 As WritableSheet
    sheet1 = newWorkbook.AddSheet("Movies", 0)
    'add the headers to the sheet
    'we create a special format for the headers
    Dim cellFormat As WritableCellFormat
    cellFormat.Initialize2(cellFormat.FONT_ARIAL, 12, True, False, False, _
        cellFormat.COLOR_GREEN)
    cellFormat.HorizontalAlignment = cellFormat.HALIGN_CENTRE
    cellFormat.SetBorder(cellFormat.BORDER_ALL, _
        cellFormat.BORDER_STYLE_MEDIUM, cellFormat.COLOR_BLACK)
    cellFormat.SetBorder(cellFormat.BORDER_BOTTOM, cellFormat.BORDER_STYLE_THICK, _
        cellFormat.COLOR_BLUE)
    cellFormat.VertivalAlignment = cellFormat.VALIGN_CENTRE
    cellFormat.BackgroundColor = cellFormat.COLOR_GREY_25_PERCENT
    Dim col As Int = 0
    For i = 0 To 10
        Dim cell As WritableCell
        cell.InitializeText(col, 0, "test"&i)
        cell.SetCellFormat(cellFormat)
        sheet1.AddCell(cell)
        sheet1.SetColumnWidth(col, 15)
        col = col + 1
    Next
    sheet1.SetColumnWidth(1, 40)
    sheet1.SetRowHeight(0, 15)
    'add the data
    Dim rowsFormat As WritableCellFormat
    rowsFormat.Initialize
    rowsFormat.HorizontalAlignment = rowsFormat.HALIGN_CENTRE
    Dim rowCounter, colCounter As Int
'    For Each row() As Object In Table1.Items
'        colCounter = 0
'        For Each value As Object In row
'            Dim cell As WritableCell
'            cell.InitializeText(colCounter, rowCounter + 1, value)
'            cell.SetCellFormat(rowsFormat)
'            sheet1.AddCell(cell)
'            colCounter = colCounter + 1
'        Next
'        rowCounter = rowCounter + 1
'    Next
    'Must call write and close to save the data.
    newWorkbook.Write
    newWorkbook.Close
End Sub
......
Sub connectpage()
SaveTable
end sub