Type: Boolean

If the return value is true, then the C/AL code is running on a C/SIDE client and the GUI is available.

If the return value is false, then the C/AL code is running on Microsoft Dynamics NAV Application Server and no GUI is available.

User Portal Application Server accepts GUIALLOWED.

This example shows how to use the GUIALLOWED function.

This example requires that you create the following text constant in the C/AL Globals window.

	Copy Code
IF GUIALLOWED THEN MESSAGE(Text000);

If the code runs on a C/SIDE client, which means that the user interface is available, a message box will appear with the following message.

Code is running on a C/SIDE client

If the code runs on Microsoft Dynamics NAV Application Server, the message will not be displayed.

Note
If the MESSAGE Function (Dialog) or the ERROR Function (Dialog) is called when the code is running on Microsoft Dynamics NAV Application Server, the message is written to the event log of the operating system. For more information about message logging, see the manual Installation & System Management: Microsoft Dynamics NAV Application Server.

Reference