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This articlerelies largely or entirely on asingle source. Relevant discussion may be found on thetalk page. Please helpimprove this article byintroducing citations to additional sources. Find sources: "C/AL" – news ·newspapers ·books ·scholar ·JSTOR(March 2024)

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 Central up 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 aNavision database. C/AL resembles thePascal language on which it is based. The original C/AL compiler was written by Michael Nielsen.^[1]

This is the classicHello World example. 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!');

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

IFItem.GET('31260210')THENMESSAGE(STRSUBSTNO('Item name is: %1',Item.Description));Item.RESET;Item.SETRANGE("No.",FromItem,ToItem);Item.FINDLAST;

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.FINDSETTHENREPEATIFItem."Profit%"<20THENBEGINItem."Profit%":=20;Item.MODIFY(TRUE);END;UNTILItem.NEXT=0;Item.MODIFYALL("Blocked",FALSE);

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• Microsoft Dynamics NAV Official Site

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