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C/AL (Client/server Application Language) is the programming language used within C/SIDE the Client/Server Integrated Development Environment in Microsoft Dynamics NAV (Formerly known as Navision Attain). C/AL is a Database specific programming language, and is primarily used for retrieving, inserting and modifying records in a Navision database. C/AL resembles the Pascal language it is based on.
This is the classic Hello World example. Since the C/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.
Filtering and retrieving records
Variables in C/AL are not defined through code, but are defined via the variable declaration menu in the C/AL editor. In this example Item is assumed to be a variable of type Record.
IF Item.GET('31260210') THEN MESSAGE('Item name is: %1',Item."Description"); Item.RESET; item.SETFILTER(...);
Looping and data manipulation
Looping over a recordset and modifying the individual records is achieved with only a few lines of code.
Item.SETRANGE("Blocked",TRUE); IF Item.FINDSET THEN REPEAT IF Item."Profit" < 10 THEN BEGIN Item."Profit %" := 10; Item.MODIFY(TRUE); END; UNTIL Item.NEXT = 0; Item.MODIFYALL("Blocked",FALSE);
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