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

Using the SmartsheetDataAdapter

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 SmartsheetDataAdapter is slower than the SmartsheetDataReader 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 Sheet_Test_Sheet table:

C#

string connectionString = "InitiateOAuth=GETANDREFRESH;OAuthClientId=MyOAuthClientId;OAuthClientSecret=MyOAuthClientSecret;CallbackURL=http://localhost:33333;";

using (SmartsheetConnection connection = new SmartsheetConnection(connectionString)) {
  SmartsheetDataAdapter dataAdapter = new SmartsheetDataAdapter(
  "SELECT Id, Name FROM Sheet_Test_Sheet", connection);

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

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

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

VB.NET

Dim connectionString As String = "InitiateOAuth=GETANDREFRESH;OAuthClientId=MyOAuthClientId;OAuthClientSecret=MyOAuthClientSecret;CallbackURL=http://localhost:33333;"

Using connection As New SmartsheetConnection(connectionString)
  Dim dataAdapter As New SmartsheetDataAdapter("SELECT Id, Name FROM Sheet_Test_Sheet", connection)

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

  Console.WriteLine("Contents of Sheet_Test_Sheet.")

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