Question

我已经搜过网了，发现很多人都在问这个，但没有一个人能解决我的问题。

我有一个Connection Class，以及一个在页面中使用该Class的方法。

DataConn.cs

public static OleDbConnection ConnectExcel()
{
    //Store the connection details as a string
    string connstr =
        String.Format(@"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=pricelist.xlsx;Extended Properties=Excel 12.0 Xml;HDR=YES");

    //Initialise the connection to the server using the connection string.
    OleDbConnection oledbConn = new OleDbConnection(connstr);

    //Open the connection, we do this here so we can instantly be able to use SQL commands in the code.
    oledbConn.Open();

    return oledbConn;
}

public static void DisconnectExcel()
{
    _oledbConn.Dispose();
    _oledbConn.Close();
}

调用它的代码

protected void Page_Load(object sender, EventArgs e)
{
    // Connection String
    const string xlStr = "SELECT * FROM [Sheet2$]";

    // Create OleDbCommand object and select data from worksheet Food
    OleDbCommand cmd = new OleDbCommand(xlStr, DataConn.ConnectExcel());

    // Create new OleDbDataAdapter
    OleDbDataAdapter oleda = new OleDbDataAdapter();

    oleda.SelectCommand = cmd;

    // Create a DataSet which will hold the data extracted from the worksheet.
    DataSet ds = new DataSet();

    // Fill the DataSet from the data extracted from the worksheet.
    oleda.Fill(ds);

    // Bind the data to the GridView
    gridPricelist.DataSource = ds;
    gridPricelist.DataBind();
}

是的我仍然得到：

System.Data.OleDb.OleDbException：找不到可安装的ISAM。

有人可以帮忙吗？

Answer 1

如果使用多于1个扩展属性，则必须引用值标记，否则驱动程序无法将它们与连接字符串中的其他非扩展属性区分开来;

...Extended Properties=""Excel 8.0;IMEX=1"""

修改您的连接字符串

String.Format(@"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=pricelist.xlsx;Extended Properties=""Excel 12.0 Xml;HDR=YES""");

参考： Could not find installable ISAM

Answer 2

请＆＃34;扩展属性＆＃34;把它放在＆＃39; ＆＃39;

就像下面的陈述一样：

string connStr = String.Format（@＆＃34; Provider = Microsoft.ACE.OLEDB.12.0; Data Source = pricelist.xlsx; 扩展属性= ' Excel 12.0 XML; HDR = YES ' ＆＃34）

Answer 3

如果你已经安装了LibreOffice，请查找cli_basetypes.dll，cli_cppuhelper.dll，cli_oootypes.dll，cli_uno.dll，cli_ure.dll，cli_uretypes.dll然后添加对项目的引用（以使用LibreOffice API＆＃39; s），我还安装了＆＃34;用于Word，Excel和PowerPoint文件格式的Microsoft Office兼容包＆＃34;和＃34; Microsoft Access数据库引擎2010可再发行组件＆＃34; （在没有完整的Office安装的情况下获得ACE.OLEDB.12.O连接）。这是VB Sample的一部分，我在其中获得了与oledb的连接以创建一些查询。

    OpenFileDialog.Filter = "Spreadsheets (*.xls*)|*.xls*"
    OpenFileDialog.Multiselect = False
    Try
        If (OpenFileDialog.ShowDialog() = System.Windows.Forms.DialogResult.OK) Then
            objOffice = CreateObject("com.sun.star.ServiceManager") 'preparar instancia libreOffice (prepare libreOffice instance)
            instOffice = objOffice.createInstance("com.sun.star.frame.Desktop")
            Dim obj(-1) As Object
            Dim myDoc = instOffice.loadComponentFromURL("file:///" & OpenFileDialog.FileName.Replace("\", "/"), "_default", 0, obj)
            Dim hojas = myDoc.getSheets().getElementNames() 'Obtener nombres de las hojas de calculo (get Spreadsheet names)
            System.Threading.Thread.Sleep(1000) 'Esperar a que termine la instancia Office (await libreOffice thread)
            myDoc.Close(True)

            Dim MyConnection As System.Data.OleDb.OleDbConnection 'Preparar conexión para realizar consulta tipo sql (preparing connection)
            Dim DtSet As System.Data.DataSet
            Dim MyCommand As System.Data.OleDb.OleDbDataAdapter

            If OpenFileDialog.FileName.ToUpper.Contains(".XLSX") Then
                MyConnection = New System.Data.OleDb.OleDbConnection("provider=Microsoft.ACE.OLEDB.12.0;Data Source='" & OpenFileDialog.FileName & "';Extended Properties='Excel 12.0 Xml;HDR=YES;IMEX=1;'")
            Else
                MyConnection = New System.Data.OleDb.OleDbConnection("provider=Microsoft.ACE.OLEDB.12.0;Data Source='" & OpenFileDialog.FileName & "';Extended Properties='Excel 12.0;HDR=YES;IMEX=1'")
            End If

System.Data.OleDb.OleDbException：找不到可安装的ISAM

3 个答案: