C/AL

Not to be confused withCAL (programming language).

C/AL

Paradigm	Imperative
Designed by	Michael Nielsen
Developer	Microsoft
Influenced by
Pascal

C/AL(Client/serverApplicationLanguage) was the programming language used within C/SIDE theClient/ServerIntegratedDevelopmentEnvironment inMicrosoft Dynamics NAV(Formerly known as Navision Attain) andMicrosoft Dynamics 365 Business Centralup until (and including) version 14. It has been replaced byAL.C/AL is a Database specific programming language, and is primarily used for retrieving, inserting and modifying records in aNavisiondatabase. C/AL resembles thePascal languageon which it is based. The original C/AL compiler was written by Michael Nielsen.

Examples

Hello World

This is the classicHello Worldexample. Since theC/SIDE(Client/Server Integrated Development Environment) does not have a console to output text, this example is made using a dialog box as the visual interface.

MESSAGE('hello, world!');

Filtering and retrieving record

Variables in C/AL are not defined through code, but are defined via the variable declaration menu in the C/AL editor. In this exampleItemis assumed to be a variable of type Record.

IFItem.GET('31260210')THEN
MESSAGE(STRSUBSTNO('Item name is: %1',Item.Description));

Item.RESET;
Item.SETRANGE("No.",FromItem,ToItem);
Item.FINDLAST;

Looping and data manipulation

Looping over a recordset and modifying the individual records is achieved with only a few lines of code.

Item.RESET;
Item.SETRANGE("Blocked",TRUE);
IFItem.FINDSETTHEN
REPEAT
IFItem."Profit% "<20THENBEGIN
Item."Profit% ":=20;
Item.MODIFY(TRUE);
END;
UNTILItem.NEXT=0;
Item.MODIFYALL("Blocked",FALSE);

See also

• Microsoft Dynamics NAV

External links

• Microsoft Dynamics NAV Official Site