Question

I’m trying to use SqlBulkCopy as per the example in Import Excel Spreadsheet Data into SQL Server Database Table Using SqlBulkCopy.

I’ve created the table and Excel sheet OK and done the coding, but I keep getting

External table is not in the expected format.

at the connection.open() line.

How do I get rid of this problem?

    // Connection String to Excel Workbook
    String savePath = @"C:\TEMP\";

    String fileName = "upload.xls";
    savePath += fileName;
    //newpath += fileName;
    FileUpload1.SaveAs(savePath);

    string excelConnectionString =
        "Provider=Microsoft.Jet.OLEDB.4.0;" +
        "Data    Source=" + savePath + ";" +
        "Extended Properties=Excel 8.0;";

    // Create Connection to Excel Workbook
    using (OleDbConnection connection = new OleDbConnection(excelConnectionString))
    {
        OleDbCommand command = new OleDbCommand("Select ID,Data FROM [Data$]", connection);

        connection.Open();

        // Create DbDataReader to Data Worksheet
        using (DbDataReader dr = command.ExecuteReader())
        {
            // SQL Server Connection String
            string sqlConnectionString = "Data Source=GRACC011334\\SQLEXPRESS;Initial Catalog=ComputerBroadcastNetwork;Integrated Security=True";

            // Bulk Copy to SQL Server
            using (SqlBulkCopy bulkCopy = new SqlBulkCopy(sqlConnectionString))
            {
                bulkCopy.DestinationTableName = "ExcelData";
                bulkCopy.WriteToServer(dr);
            }
        }
    }

Answer 1

I got it. I had to change the format of the connection string and changed it to

string excelConnectionString = (@"Provider=Microsoft.Jet.OLEDB.4.0;DataSource=C:\TEMP\Book1.xls;Extended Properties='Excel 8.0;HDR=NO;IMEX=1'");