The CData ADO.NET Provider for Odoo implements two ADO.NET interfaces you can use to retrieve data from Odoo: OdooDataAdapter and OdooDataReader objects. Whereas OdooDataAdapter objects retrieve a single result set of all the data that matches a query, OdooDataReader objects fetch data in subset increments as needed.

Using the OdooDataReader

The OdooDataReader retrieves data faster than the OdooDataAdapter because it can retrieve data in pages. As you read data from the OdooDataReader, it periodically requests the next page of results from the data source, if required. This causes results to be returned at a faster rate. The following example selects all the columns from the res_users table:

C#

string connectionString = "User=MyUser;APIToken=MyToken;URL=http://MyOdooSite/;Database=MyDatabase";

using (OdooConnection connection = new OdooConnection(connectionString)) {
  OdooCommand cmd = new OdooCommand("SELECT * FROM res_users", connection);
  
  OdooDataReader rdr = cmd.ExecuteReader();

  while (rdr.Read()) {
    Console.WriteLine(String.Format("\t{0} --> \t\t{1}", rdr["name"], rdr["email"]));
  }
}

VB.NET

Dim connectionString As String = "User=MyUser;APIToken=MyToken;URL=http://MyOdooSite/;Database=MyDatabase"

Using connection As New OdooConnection(connectionString)
  Dim cmd As New OdooCommand("SELECT * FROM res_users", connection)

  Dim rdr As OdooDataReader = cmd.ExecuteReader()

  While rdr.Read()
    Console.WriteLine([String].Format(vbTab & "{0} --> " & vbTab & vbTab & "{1}", rdr("name"), rdr("email")))
  End While
End Using