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

Using the AcumaticaDataAdapter

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 AcumaticaDataAdapter is slower than the AcumaticaDataReader because the Fill method needs to retrieve all data from the data source before returning.

The following example selects the Id and location_displayName columns of the Events table:

C#

string connectionString = "Url = https://try.acumatica.com/ISV/entity/Default/17.200.001/;User=user;Password=password;Company=CompanyName;";

using (AcumaticaConnection connection = new AcumaticaConnection(connectionString)) {
  AcumaticaDataAdapter dataAdapter = new AcumaticaDataAdapter(
  "SELECT Id, location_displayName FROM Events", connection);

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

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

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

VB.NET

Dim connectionString As String = "Url = https://try.acumatica.com/ISV/entity/Default/17.200.001/;User=user;Password=password;Company=CompanyName;"

Using connection As New AcumaticaConnection(connectionString)
  Dim dataAdapter As New AcumaticaDataAdapter("SELECT Id, location_displayName FROM Events", connection)

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

  Console.WriteLine("Contents of Events.")

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