c# - 如何在没有安装 MS Office 的机器上使用 Microsoft.Office.Interop.Excel？

Question

我正在编写一个处理 excel 文件的应用程序。我需要一个功能来删除工作表。我必须使用程序集 Microsoft.Office.Interop.Excel.dll。

它在开发者机器上运行良好，但是当我尝试将它部署到服务器上时出现错误:

Could not load file or assembly 'office, Version=14.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c' or one of its dependencies

我了解当计算机上未安装 MS Office 时会出现问题。客户不想不惜任何代价在服务器上安装和购买 MS Office。

我按照此处的建议在开发人员机器上安装“可再发行主互操作程序集”:http://forums.asp.net/t/1530230.aspx/1并再次编译我的项目。

代码示例:

public bool DeleteSheet(string tableName)
{
    Excel.Application app = null;
    Excel.Workbooks wbks = null;
    Excel._Workbook _wbk = null;
    Excel.Sheets shs = null;

    bool found = false;

    try
    {
        app = new Excel.Application();
        app.Visible = false;
        app.DisplayAlerts = false;
        app.AlertBeforeOverwriting = false;

        wbks = app.Workbooks;
        _wbk = wbks.Add(xlsfile);
        shs = _wbk.Sheets;
        int nSheets = shs.Count;

        for (int i = 1; i <= nSheets; i++)
        {
            Excel._Worksheet _iSheet = (Excel._Worksheet)shs.get_Item(i);
            if (_iSheet.Name == tableName)
            {
                _iSheet.Delete();
                found = true;

                Marshal.ReleaseComObject(_iSheet);
                break;
            }
            Marshal.ReleaseComObject(_iSheet);
        }

        if (!found)
            throw new Exception(string.Format("Table \"{0}\" was't found", tableName));

        _wbk.SaveAs(connect, _wbk.FileFormat, Missing.Value, Missing.Value, Missing.Value,
        Missing.Value, Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlNoChange,
        Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value);
    }
    finally
    {
        _wbk.Close(null, null, null);
        wbks.Close();
        app.Quit();

        Marshal.ReleaseComObject(shs);
        Marshal.ReleaseComObject(_wbk);
        Marshal.ReleaseComObject(wbks);
        Marshal.ReleaseComObject(app);
    }
    return true;
}

一个异常(exception)

Retrieving the COM class factory for component with CLSID {00024500-0000-0000-C000-000000000046} failed due to the following error: 80040154 Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)).

在线上发生

app = new Excel.Application();

任何人都可以建议如何使此功能成功运行吗？

Answer 1

如果没有安装 ms office，则无法使用 Microsoft.Office.Interop.Excel。

只需在谷歌中搜索一些允许修改 xls 或 xlsx 的库:

• http://code.google.com/p/excellibrary/
• http://simpleooxml.codeplex.com/ (仅 xlsx)