Products->>Expression builder

What's new:

• 3 new components are added - TEPClassTreeView, TEPClassComboBox, TEPClassMemberBox - for browsing registered in Expression parser classes and all their accessible methods and properties

Features:

• functions are separated in function's categories, which could be choosed from categories' combobox or list box;
• help hints about declaration and description of the selected function;
• could declare and use custom user data;
• could build your own expression builder dialogs, as well as to use the default one (TExprBuilderDlg component) with just one row of source code.
• automated the process of building scripts, using double clicking over the function or variable, which inserts the selected function, syntax formated, at the current possition in a script;
• could set DataSource, DataField properties, where to save builded script, along with any user data, which could be used later to perform certain calculations;
• with the help of TExprSolver component, you could automate the process of evaluation the stored scripts. It automatically fetches scripts stored in a dataset along with any user data, tries to initialize all used by a given script variables from INI file and from a dataset, fires an event just before to make a calculation, to enable you to make some initializations and then calculate the script. The only thing you left to do is to specify, where to take all these data from.
• full help and demo included;