Question

I’m trying to import some data from excel into a database . i got the following code from http://www.davidhayden.com/blog/dave/archive/2006/05/31/2976.aspx . I have a x86 arhitecture so that’s not the problem . when i run the code the program says at connection.Open(); that The ‘Microsoft .Jet.OLEDB.4.0’ provider is not registered on the local machine. Any ideas ?

 string excelConnectionString = @"Provider=Microsoft
    .Jet.OLEDB.4.0;Data Source=C://suc.xls;Extended
    Properties=""Excel 8.0;HDR=YES;""";

// 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=.;Initial Catalog=Test;Integrated Security=True";

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

Answer 1

If you are running the code on a 64 bit machine, and its a web project, then open IIS, right click on the Application pool and click on Advanced settings. Set the second property from the top: Enable 32 bit application to True, that should fix the problem.