Question

我最近将我的SQL连接字符串更新为Microsoft.ACE.OLEDB.12.0，现在就是：

using System;
using System.Data;
using System.Data.OleDb;
using System.Data.SqlClient;
using System.Data.Common;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Media;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.IO;

    // connection for header file
    protected OleDbCommand headExcelConnection()
    {
        // Connect to the Excel Spreadsheet 
        string headConnStr = "Provider=Microsoft.ACE.OLEDB.12.0;" + "Data Source=" + Server.MapPath("~/imports/headerorder.xls") + ";" + "Extended Properties=Excel 8.0;";

        OleDbConnection headXConn = new OleDbConnection(headConnStr);
        headXConn.Open();

        OleDbCommand headCommand = new OleDbCommand("SELECT * FROM [Sheet1$]", headXConn);
        return headCommand;
        headXConn.Close();
    }

我在第headXConn.Open()行发现了以下错误;

异常详细信息：System.Runtime.InteropServices.SEHException：   外部组件抛出异常。

SEHException（0x80004005）：外部组件抛出了一个   例外]
  System.Data.Common.IDBInitializeInitialize.Invoke（IntPtr pThis）+0
  System.Data.OleDb.DataSourceWrapper.InitializeAndCreateSession（OleDbConnectionString   constr，SessionWrapper＆amp; sessionWrapper）+304
  System.Data.OleDb.OleDbConnectionInternal..ctor（OleDbConnectionString   constr，OleDbConnection连接）+193
  System.Data.OleDb.OleDbConnectionFactory.CreateConnection（DbConnectionOptions   options，Object poolGroupProviderInfo，DbConnectionPool池，   DbConnection owningObject）+86
  System.Data.ProviderBase.DbConnectionFactory.CreateNonPooledConnection（的DbConnection   owningConnection，DbConnectionPoolGroup poolGroup）+29
  System.Data.ProviderBase.DbConnectionFactory.GetConnection（的DbConnection   拥有连接）+4911420
  System.Data.ProviderBase.DbConnectionClosed.OpenConnection（的DbConnection   outerConnection，DbConnectionFactory connectionFactory）+117
  System.Data.OleDb.OleDbConnection.Open（）+40
  exportsEmails.aspx.cs中的importsEmails.headExcelConnection（）：65
  importsEmails.BtnViewHeader_Click（Object sender，EventArgs e）in   importsEmails.aspx.cs：89个
  System.Web.UI.WebControls.Button.OnClick（EventArgs e）+111
  System.Web.UI.WebControls.Button.RaisePostBackEvent（字符串   eventArgument）+110
  System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent（字符串   eventArgument）+10
  System.Web.UI.Page.RaisePostBackEvent（IPostBackEventHandler   sourceControl，String eventArgument）+13
  System.Web.UI.Page.RaisePostBackEvent（NameValueCollection postData）   +36 System.Web.UI.Page.ProcessRequestMain（Boolean includeStagesBeforeAsyncPoint，Boolean includeStagesAfterAsyncPoint）

我做错了什么？

使用Provider = Microsoft.ACE.OLEDB.12.0时，外部组件引发了异常

0 个答案: