将 Excel 导出到数据集（错误 - 定义了太多字段）

Question

我正在将 Excel (.xls) 工作表导出到数据集。在该 Excel 中，我有 16 列。导出时，我收到错误“定义了太多字段”。

这是我的代码部分。

{
            string strFilePathOnServer = ConfigurationManager.AppSettings["RevenueDumpFileLocation"];
            String sConnectionString = @"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + Server.MapPath(strFilePathOnServer) + RevenueDumpFileUpload.FileName + ";Extended Properties=\"Excel 8.0;IMEX=1;HDR=NO;TypeGuessRows=0;ImportMixedTypes=Text\"";

            string strPostedFileName = RevenueDumpFileUpload.PostedFile.FileName;
            if (strPostedFileName != string.Empty && RevenueDumpFileUpload.PostedFile.ContentLength != 0)
            {

                RevenueDumpFileUpload.PostedFile.SaveAs(Server.MapPath(strFilePathOnServer) + RevenueDumpFileUpload.FileName);
                RevenueDumpFileUpload.FileContent.Dispose();
            }

            OleDbConnection Exlcon = new OleDbConnection(sConnectionString);
            try
            {
                //Exlcon.Open();
            }
            catch
            {
                return;
            }
            OleDbCommand objCmdSelect = new OleDbCommand("SELECT * FROM [Owner$]", Exlcon);
            OleDbDataAdapter objAdapter1 = new OleDbDataAdapter();
            objAdapter1.SelectCommand = objCmdSelect;
            objDataset1.Clear();
            objAdapter1.Fill(objDataset1, "XLData");

当跨越 Fill 方法时，我收到错误...

如何解决这个问题...

Answer 1

将列限制为仅 250

string sql = "select * from [A1:IU]";