Querying with the DataAdapter
The CData ADO.NET Provider for PingOne implements two ADO.NET interfaces you can use to retrieve data from PingOne: PingOneDataAdapter and PingOneDataReader objects. Whereas PingOneDataAdapter objects retrieve a single result set of all the data that matches a query, PingOneDataReader objects fetch data in subset increments as needed.
Using the PingOneDataAdapter
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 PingOneDataAdapter is slower than the PingOneDataReader because the Fill method needs to retrieve all data from the data source before returning.
The following example selects the Username and Email columns of the Users table:
C#
string connectionString = "AuthScheme=OAuth;InitiateOAuth=GETANDREFRESH;WorkerAppEnvironmentId=eebc33a8-xxxx-4f3a-yyyy-d3e5262fd49e;Region=NA;OAuthClientId=client_id;OAuthClientSecret=client_secret;";
using (PingOneConnection connection = new PingOneConnection(connectionString)) {
PingOneDataAdapter dataAdapter = new PingOneDataAdapter(
"SELECT Username, Email FROM [CData].[Administrators].Users", connection);
DataTable table = new DataTable();
dataAdapter.Fill(table);
Console.WriteLine("Contents of Users.");
foreach (DataRow row in table.Rows) {
Console.WriteLine("{0}: {1}", row["Username"], row["Email"]);
}
}
VB.NET
Dim connectionString As String = "AuthScheme=OAuth;InitiateOAuth=GETANDREFRESH;WorkerAppEnvironmentId=eebc33a8-xxxx-4f3a-yyyy-d3e5262fd49e;Region=NA;OAuthClientId=client_id;OAuthClientSecret=client_secret;"
Using connection As New PingOneConnection(connectionString)
Dim dataAdapter As New PingOneDataAdapter("SELECT Username, Email FROM [CData].[Administrators].Users", connection)
Dim table As New DataTable()
dataAdapter.Fill(table)
Console.WriteLine("Contents of Users.")
For Each row As DataRow In table.Rows
Console.WriteLine("{0}: {1}", row("Username"), row("Email"))
Next
End Using