MailChimpConnection Class

In This Topic

Represents an open connection to Mailchimp.

Syntax

Visual Basic
C#

'Declaration
 
Public Class MailChimpConnection 
   Inherits Devart.Data.SqlShimConnection
   Implements System.ComponentModel.IComponent, System.Data.IDbConnection, System.ICloneable, System.IDisposable

public class MailChimpConnection : Devart.Data.SqlShimConnection, System.ComponentModel.IComponent, System.Data.IDbConnection, System.ICloneable, System.IDisposable

Remarks

A MailChimpConnection object represents a unique connection to Mailchimp. Use it in conjunction with MailChimpCommand, MailChimpDataReader, MailChimpDataAdapter or other components for convenient interoperation with Mailchimp.

When you create an instance of MailChimpConnection, all properties are set to their initial values. For a list of these values, see ConnectionString.

If the MailChimpConnection goes out of scope, it is not closed. Therefore, you must explicitly close the connection by calling Devart.Common.DbConnectionBase.Close.

Note that MailChimpConnection instance is not guaranteed to be thread safe. You should avoid using the same MailChimpConnection in several threads at the same time. It is recommended to open a new connection per thread and to close it when the work is done. Actually, connections will not be created/disposed every time with the Pooling=true; connection string option - connections will be stored at connection pool. This boosts performance greatly.

A single MailChimpConnection can be used by many MailChimpCommand objects on the assumption that all operations will be done consecutively. In other words, you can not execute a SQL statement while an asynchronous operation is in progress.

This class supports cross-form data binding with the InterForm Technology.

Example

The following example creates a MailChimpCommand and a MailChimpConnection. The MailChimpConnection is opened and set as the Connection property. The example then calls ExecuteNonQuery method, and closes the connection. To accomplish this, the ExecuteNonQuery is passed a connection string and a query string that is SQL INSERT statement.

csharp

public void InsertRow(string mailchimpConnectionString)
{
  // If the connection string is empty, use default.
  if(mailchimpConnectionString == "")
  {
    mailchimpConnectionString = 
        "api key=8b10fe893c9732d12befe0b7d846ffcb-us10;";
  }
  MailChimpConnection myConn = new MailChimpConnection(mailchimpConnectionString);
  string myInsertQuery = "INSERT INTO Folders(Name, Type) VALUES ('Sales', 'campaign')";
  MailChimpCommand mailchimpCommand = new MailChimpCommand(myInsertQuery);
  mailchimpCommand.Connection = myConn;
  myConn.Open();
  try
  {
    mailchimpCommand.ExecuteNonQuery();
  }
  finally
  {
    myConn.Close();
  }
}

Visual Basic

Public Sub InsertRow(mailchimpConnectionString As String)
  ' If the connection string is empty, use default.
  If mailchimpConnectionString = "" Then
    mailchimpConnectionString = _
        "api key=8b10fe893c9732d12befe0b7d846ffcb-us10;"
  End If
  Dim myConn As New MailChimpConnection(mailchimpConnectionString)
  Dim myInsertQuery As String = "INSERT INTO Folders(Name, Type) VALUES ('Sales', 'campaign')"
  Dim mailchimpCommand As New MailChimpCommand(myInsertQuery)
  mailchimpCommand.Connection = myConn
  myConn.Open()
  Try
    mailchimpCommand.ExecuteNonQuery()
  Finally
    myConn.Close()
  End Try
End Sub

Inheritance Hierarchy

System.Object
   System.MarshalByRefObject
      System.ComponentModel.Component
         System.Data.Common.DbConnection
            Devart.Common.DbConnectionBase
               Devart.Data.SqlShimConnection
                  Devart.Data.MailChimp.MailChimpConnection

Requirements

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

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

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