Delete an excel file after uploading

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I have uploaded an excel file but when once again when i upload the prevoius file does not get deleted.It occurs as "File already exists"

My code is as follows:
------------------------------------------------

If File.Exists("c:\craupload\NLAO_Upload.xls") Then
           
           If conn.State <> ConnectionState.Open Then
               conn.Open()
           End If
           strDelFile = "exec master..xp_cmdshell 'del     c:\craupload\NLAO_Upload.xls'"
           cmd = New SqlCommand(strDelFile, conn)
           cmd.CommandTimeout = 0
           intFileDelete = cmd.ExecuteNonQuery
           If conn.State <> ConnectionState.Closed Then
               conn.Close()
           End If
       End If

--------------------------------------------
But this does not Deletes the file as soon as the data is inserted in temp table.Please Suggest!!!!!!!!

Thanks In Advance

Posted 1-Oct-10 0:37am

ankita baid

Updated 1-Oct-10 1:59am

Henry Minute

v3

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Henry Minute 1-Oct-10 8:04am

Does it throw an exception? Any error message? I would have thought that it would have thrown one.

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Umair Feroze · Answer 1 · 2010-10-01T02:54:00

The following lines of code will do the trick:

C#

private void Form1_Load(object sender, EventArgs e)
{
      DataTable dtExcel = GetDataFromExcel();

     /*Implement logic to insert rows in database*/
       System.IO.File.Delete("C:\\my\\Book1.xls");

}
public DataTable GetDataFromExcel()
{
            DataTable dt = new DataTable();
            con.ConnectionString = connectionString;
            cmd.Connection = con;
            OleDbDataAdapter dap = new OleDbDataAdapter();
            dap.SelectCommand = cmd;
            dap.Fill(dt);
            return dt;
}