how to get table schema from ms access

OleDbConnection conn = 
   new OleDbConnection(
      "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + 
      "C:\\database.mdb;Persist Security Info=False;");

// retrieving schema for a single table
OleDbCommand cmd = new OleDbCommand("tablename", conn);
cmd.CommandType = CommandType.TableDirect;
conn.Open();
OleDbDataReader reader = 
   cmd.ExecuteReader(CommandBehavior.SchemaOnly);
DataTable schemaTable = reader.GetSchemaTable();
reader.Close();
conn.Close();

LogFile.WriteLine(" ");
foreach (DataRow r in schemaTable.Rows)
{
   LogFile.WriteLine(" ");
   foreach (DataColumn c in schemaTable.Columns)
   {
      LogFile.WriteLine(c.ColumnName + ": " + r[c.ColumnName]);
   }
}
MessageBox.Show("done");