MailChimpDataReader Class

In This Topic

Reads a forward-only stream of rows from Mailchimp.

Syntax

Visual Basic
C#

'Declaration
 
Public NotInheritable Class MailChimpDataReader 
   Inherits Devart.Data.SqlShimDataReader
   Implements System.Collections.IEnumerable, System.Data.IDataReader, System.Data.IDataRecord, System.IDisposable

public sealed class MailChimpDataReader : Devart.Data.SqlShimDataReader, System.Collections.IEnumerable, System.Data.IDataReader, System.Data.IDataRecord, System.IDisposable

Remarks

To create a MailChimpDataReader, you must call the ExecuteReader method of the MailChimpCommand object, rather than directly using a constructor.

System.Data.Common.DbDataReader.IsClosed and Devart.Data.SqlShimDataReader.RecordsAffected are the only properties that you can call after the MailChimpDataReader is closed. In some cases, you must call Devart.Data.SqlShimDataReader.Close before you can call Devart.Data.SqlShimDataReader.RecordsAffected.

Example

The following example creates a MailChimpConnection, a MailChimpCommand, and a MailChimpDataReader. The example reads through the data, writing it out to the console. Finally, the example closes the MailChimpDataReader, then the MailChimpConnection.

csharp

public void ReadMyData(string myConnString)  {
        MailChimpConnection mailchimpConnection = new MailChimpConnection(myConnString);
        MailChimpCommand mailchimpCommand = (MailChimpCommand)mailchimpConnection.CreateCommand();
        mailchimpCommand.CommandText = "SELECT Id, Name, Type FROM Folders";
        mailchimpConnection.Open();
        MailChimpDataReader mailchimpReader = mailchimpCommand.ExecuteReader();
        try {
                // Always call Read before accessing data.
                while (mailchimpReader.Read()) {
                Console.WriteLine(mailchimpReader.GetInt32(0).ToString() + " " + 
                mailchimpReader.GetString(1) + " " + mailchimpReader.GetString(2));
        }
        }
        finally {
                // always call Close when done reading.
                mailchimpReader.Close();

                // Close the connection when done with it.
                mailchimpConnection.Close();
        }
}

Visual Basic

Public Sub ReadMyData(ByVal myConnString As String)
        Dim mailchimpConnection As New MailChimpConnection(myConnString)
        Dim mailchimpCommand As MailChimpCommand = mailchimpConnection.CreateCommand()
                mailchimpCommand.CommandText = "SELECT Id, Name, Type FROM Folders"
        mailchimpConnection.Open()
        Dim mailchimpReader As MailChimpDataReader = mailchimpCommand.ExecuteReader()
        Try
                ' Always call Read before accessing data.
                While mailchimpReader.Read()
                        Console.WriteLine(String.Concat(mailchimpReader.GetInt32(0).ToString(), " ", _
                        mailchimpReader.GetString(1), " ", mailchimpReader.GetString(2)))
                End While
        Finally
                ' always call Close when done reading.
                mailchimpReader.Close()

                        ' Close the connection when done with it.
                        mailchimpConnection.Close()
        End Try
End Sub

Inheritance Hierarchy

System.Object
   System.MarshalByRefObject
      System.Data.Common.DbDataReader
         Devart.Common.DbDataReaderBase
            Devart.Data.SqlShimDataReader
               Devart.Data.MailChimp.MailChimpDataReader

Reference

MailChimpDataReader Members
Devart.Data.MailChimp Namespace
MailChimpConnection Class
MailChimpCommand Class

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