Writing Data

The right pane of the forms contains data entry fields in which users can modify information for existing records or add new records. Clicking Change submits these modifications to the Eval database. Clicking Delete submits a request to delete the current record from the database. The following diagram shows how table actions are executed from the browser.

The following topics describe how the PT application writes data to the Eval database, and apply to all forms in the PT application:

• Comprehensive Data Validation describes how the PT application implements client-side data validation using custom attributes, localized error messages, and pattern matching.
• Using the onSubmit Event and Using the onClick Event describe two ways of calling postIt.asp and submitting data via postIt.asp.
• Using postIt.asp describes the code that instantiates the SQLXML COM object (see SQLXML.cls) and calls the PostActions method.
• PostActions: Where the Data Writing Process Begins describes how calls are made to stored procedures.
• Reloading Lists describes the code that refreshes the list that appears in the left pane of each form view.