c# - Microsoft Office Access 数据库引擎找不到对象

Question

我正在尝试将数据从 excel 复制到 sql server 但遇到以下错误。

The Microsoft Office Access database engine could not find the object 'sheet1$'. Make sure the object exists and that you spell its name and the path name correctly.

我的代码是:

 protected void importdatafromexcel(string filepath)
    {
        string sqltable = "PFDummyExcel";
        string exceldataquery = "select EmployeeId,EmployeeName,Amount from [Sheet1$]";
        string excelconnectionstring = @"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + filepath + ";Extended Properties=Excel 12.0;Persist Security Info=False";
        string sqlconnectionstring = System.Configuration.ConfigurationManager.ConnectionStrings["HRGold"].ConnectionString;
        SqlConnection con = new SqlConnection(sqlconnectionstring);
        OleDbConnection oledb = new OleDbConnection(excelconnectionstring);
        OleDbCommand oledbcmd = new OleDbCommand(exceldataquery, oledb);
        oledb.Open();
        OleDbDataReader dr = oledbcmd.ExecuteReader();
        SqlBulkCopy bulkcopy = new SqlBulkCopy(sqlconnectionstring);
        bulkcopy.DestinationTableName = sqltable;
        while (dr.Read())
        {
            bulkcopy.WriteToServer(dr);
        }
        oledb.Close();
    }

请告诉我如何解决这个问题..

Answer 1

出现此错误是因为您正在尝试访问 excel 文件中的工作表(名称为 sheet1)。默认情况下，第一个工作表名称为“sheet1”，但用户可以重命名此名称或删除此工作表。

要解决此问题，首先您必须从 excel 文件中获取所有工作表名称，然后您必须在上述代码中传递此工作表名称以导入数据。

string  filePath = "your file path";

string excelconnectionstring = @"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + filepath + ";Extended Properties=Excel 12.0;Persist Security Info=False";

OleDbConnection Connection  = new OleDbConnection(excelconnectionstring); 


DataTable activityDataTable = Connection.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, null);

if(activityDataTable != null)
{
    //validate worksheet name.
    var itemsOfWorksheet = new List<SelectListItem>();
    string worksheetName;
    for (int cnt = 0; cnt < activityDataTable.Rows.Count; cnt++)
    {
        worksheetName = activityDataTable.Rows[cnt]["TABLE_NAME"].ToString();

        if (worksheetName.Contains('\''))
        {
            worksheetName = worksheetName.Replace('\'', ' ').Trim();
        }
        if (worksheetName.Trim().EndsWith("$"))
            itemsOfWorksheet.Add(new SelectListItem { Text = worksheetName.TrimEnd('$'), Value = worksheetName });
    }
}

// itemsOfWorksheet : all worksheet name is added in this

因此您可以使用 itemsOfWorksheet[0] 作为工作表名称来代替“sheet1”