After reviewing the selected code customization, apply it to your application by clicking “Finish” in the Code Customization Wizard. The code is inserted into your application, usually in one of the underlying page’s customizable class files or in the Data Access Layer class files.
Extending Applications with the Code Customization Wizard
Selecting a Customization to Apply
Substituting Parameters into a Code Template
Applying the Code Customization to your Application
Adding Your Own Code Templates