Developing a Custom Task
Integration Services uses tasks to perform units of work in support of the extraction, transformation, and loading of data. Integration Services includes a variety of tasks that perform the most frequently used actions, from executing an SQL statement to downloading a file from an FTP site. If the included tasks and supported actions do not completely meet your requirements, you can create a custom task.
To create a custom task, you have to create a class that inherits from the T:Microsoft.SqlServer.Dts.Runtime.Task base class, apply the T:Microsoft.SqlServer.Dts.Runtime.DtsTaskAttribute attribute to your new class, and override the important methods and properties of the base class, including the M:Microsoft.SqlServer.Dts.Runtime.Task.Execute(Microsoft.SqlServer.Dts.Runtime.Connections,Microsoft.SqlServer.Dts.Runtime.VariableDispenser,Microsoft.SqlServer.Dts.Runtime.IDTSComponentEvents,Microsoft.SqlServer.Dts.Runtime.IDTSLogging,System.Object) method.
This section describes how to create, configure, and code a custom task and its optional custom user interface.
- Creating a Custom Task
Describes the first step, which is creating the custom task.
- Coding a Custom Task
Describes how to code the principal methods of a custom task.
- Connecting to Data Sources in a Custom Task
Describes how to connect a custom task to a data source.
- Raising and Defining Events in a Custom Task
Describes how to raise events and define custom events from the custom task.
- Adding Support for Debugging in a Custom Task
Describes how to create breakpoint targets in the custom task.
- Developing a User Interface for a Custom Task
Describes how to create a user interface that shows in SSIS Designer to configure properties on the custom task.
For information that is common to all the type of custom objects that you can create in Integration Services, see the following topics:
- Developing Custom Objects for Integration Services
Describes the basic steps in implementing all kinds of custom objects for Integration Services.
- Persisting Custom Objects
Describes custom persistence and explains when it is necessary.
- Building, Deploying, and Debugging Custom Objects
Describes the techniques for building, signing, deploying, and debugging custom objects.
For information about the other types of custom objects that you can create in Integration Services, see the following topics:
- Developing a Custom Connection Manager
Discusses how to program custom connection managers.
- Developing a Custom Log Provider
Discusses how to program custom log providers.
- Developing a Custom ForEach Enumerator
Discusses how to program custom enumerators.
- Developing a Custom Data Flow Component
Discusses how to program custom data flow sources, transformations, and destinations.