Samples of Use: Some examples of TPL programs.
Data Types: The types of data items and organization manipulated by TPL code.
Data Model: The particular data structures available to TPL code, including form data and local variables, and how it is accessed.
Expressions: The operators and operands that are used for computation.
Statements: The types of statements, including those for looping, testing conditionals, and flow-control.
Functions: Using built-in and user-defined functions in expressions.
Execution: The times when TPL code is executed and the restrictions sometimes imposed.
User-Defined Functions: Defining and using functions written by the form designer.
Built-in Functions: An overview of the functions built-in to TPL.