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

Using the SalesforceDataCloudDataAdapter

Use the adapter's Fill method to retrieve data from the data source. An empty DataTable instance is passed as an argument to the Fill method. When the method returns, the DataTable instance is populated with the queried data. Note that the SalesforceDataCloudDataAdapter is slower than the SalesforceDataCloudDataReader because the Fill method needs to retrieve all data from the data source before returning.

The following example selects the Id and Name columns of the Account table:

C#

string connectionString = "InitiateOAuth=GETANDREFRESH;";

using (SalesforceDataCloudConnection connection = new SalesforceDataCloudConnection(connectionString)) {
  SalesforceDataCloudDataAdapter dataAdapter = new SalesforceDataCloudDataAdapter(
  "SELECT Id, Name FROM Account", connection);

  DataTable table = new DataTable();
  dataAdapter.Fill(table);

  Console.WriteLine("Contents of Account.");

  foreach (DataRow row in table.Rows) {
    Console.WriteLine("{0}: {1}", row["Id"], row["Name"]);
  }
}

VB.NET

Dim connectionString As String = "InitiateOAuth=GETANDREFRESH;"

Using connection As New SalesforceDataCloudConnection(connectionString)
  Dim dataAdapter As New SalesforceDataCloudDataAdapter("SELECT Id, Name FROM Account", connection)

  Dim table As New DataTable()
  dataAdapter.Fill(table)

  Console.WriteLine("Contents of Account.")

  For Each row As DataRow In table.Rows
    Console.WriteLine("{0}: {1}", row("Id"), row("Name"))
  Next
End Using