C#

private void button1_Click(object sender, EventArgs e)
{
    string cmd;
    string field;
    string parameter;
    field = "Site,Model";
    parameter = "@Site,@Model";

   OleDbConnection aConnection = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data   Source=c:\\db1.mdb");
   cmd = "INSERT INTO Run(" + field + ") values (" + parameter + ")";
   OleDbCommand sCommand = new OleDbCommand(cmd);
   sCommand.Connection = aConnection;
   aConnection.Open();
   sCommand.Parameters.Add("@Site", OleDbType.VarChar, 20);
   sCommand.Parameters.Add("@Model", OleDbType.VarChar, 20);
   sCommand.Parameters["@Site"].Value = "site1";
   sCommand.Parameters["@Model"].Value = "Model1";
   OleDbDataReader aReader = sCommand.ExecuteReader();


   sCommand.Parameters.Add("@Site", OleDbType.VarChar, 20);
   sCommand.Parameters.Add("@Model", OleDbType.VarChar, 20);
   sCommand.Parameters["@Site"].Value = "site1";
   sCommand.Parameters["@Model"].Value = "Model1";

   aReader.Close();
   aConnection.Close();

}