Unsupported types for BAnd: 'null' and 'java.lang.Long'

Question

MYSELF have a button visible binding code as:

!((({Root Container.type} = 4) || ({Root Container.type} = 5)) && ({Root Container.bp.command} & 0x0080)) && !(!(({Root Container.type} = 4) || ({Root Container.type} = 5)) && ({Root Container.bp.command} & 0x0040))

The code works correctly not available I open &hellip;

lrose · Accepted Answer

No, it’s an expression function. if(conditional statement, actual returning, false return) https://docs.inductiveautomation.com/display/DOC81/if If the conditional statement is truthfully this return and true return value, if it is false then return the false return value.