VB.net中的CSV文件和OLEDB-异常，无信息

Question

I'm trying to parse a user-submitted csv file in ASP.NET with VB. Here is my function:

Public Function getData() As DataSet
        Dim conn As String = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + Path.GetTempPath() + ";Extended Properties=""Text;HDR=No;FMT=Delimited"""

        Dim cn As New OleDbConnection(conn)
        Dim cmd As New OleDbCommand("SELECT * FROM " + sourceFile, cn)
        Dim da As New OleDbDataAdapter(cmd)

        cn.Open()

        Dim dt As New DataSet()

        da.Fill(dt)

        cn.Close()
        Return dt
    End Function

the error I get is:

System.Data.OleDb.OleDbException was unhandled by user code

ErrorCode=-2147467259 Message=IErrorInfo.GetDescription failed with E_FAIL(0x80004005). Source=System.Data StackTrace: at System.Data.OleDb.OleDbCommand.ExecuteCommandTextErrorHandling(OleDbHResult hr) at System.Data.OleDb.OleDbCommand.ExecuteCommandTextForSingleResult(tagDBPARAMS dbParams, Object& executeResult) at System.Data.OleDb.OleDbCommand.ExecuteCommandText(Object& executeResult) at System.Data.OleDb.OleDbCommand.ExecuteCommand(CommandBehavior behavior, Object& executeResult) at System.Data.OleDb.OleDbCommand.ExecuteReaderInternal(CommandBehavior behavior, String method) at System.Data.OleDb.OleDbCommand.ExecuteReader(CommandBehavior behavior) at System.Data.OleDb.OleDbCommand.System.Data.IDbCommand.ExecuteReader(CommandBehavior behavior) at System.Data.Common.DbDataAdapter.FillInternal(DataSet dataset, DataTable[] datatables, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior) at System.Data.Common.DbDataAdapter.Fill(DataSet dataSet, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBe havior behavior) at System.Data.Common.DbDataAdapter.Fill(DataSet dataSet) at SuperSMITH.CSVReader.getData() in C:\\Projects\\Allied\\App_Code\\CSVReader.vb:line 29 at tools_Step2.uplFile_FileUploadComplete(Object sender, FileUploadCompleteEventArgs e) in C:\\Projects\\Allied\\tools\\Step2.aspx.vb:line 58 at DevExpress.Web.ASPxUploadControl.ASPxUploadControl.OnFileUploadComplete(FileUploadCompleteEventArgs e) at DevExpress.Web.ASPxUploadControl.ASPxUploadControl.RaiseFileUploadComplete(UploadedFile uploadedFile, String& errorText, String& callbackData) at DevExpress.Web.ASPxUploadControl.ASPxUploadControl.Validate() InnerException:

The error comes up at the da.fill(dt) line.

Any suggestions?

Answer 1

Every search result that comes up says it has to do using reserved keywords in the CSV file or in the SELECT statement. What's the value of sourceFile ?