Delphi: How to create a evaluator for user-generated literal expressions using LiveBinding classes? скачать в хорошем качестве

Delphi: How to create a evaluator for user-generated literal expressions using LiveBinding classes?

The main basis of this technology is built on real-time information, or RTTI! Therefore, the processing cost should be proportional to the volume of information to be processed to obtain the desired information. Thus, it should be used cautiously and only in specific cases where there is no other natural alternative to obtain the desired information! LiveBindings in Delphi, introduced in XE2, is an expression-based framework that links visual components (VCL or FireMonkey) to data sources (datasets, objects) without requiring extensive manual coding. It allows unidirectional or bidirectional connections, facilitating the creation of dynamic and interactive user interfaces, and is essential in FireMonkey. Main Features of LiveBindings: Visual Live Bindings Designer: IDE visual tool for connecting component properties via drag-and-drop. Bind Source DB/DBX: Components for linking datasets (TClientDataSet, TFDQuery) to visual components (TEdit, TStringGrid). AdapterBindSource: Used to bind non-dataset data collections, such as objects in lists. PrototypeBindSource: Facilitates rapid prototyping of applications with sample data. Bidirectional: Any change in the source or destination is automatically reflected. LiveBindings works for both VCL (Windows) and FireMonkey (cross-platform) applications, making component properties "live".