If Control Not Working?

Revit
, ,
1

Hey Everyone!

I was wondering if anyone else has experience glitches within Dynamo in regards to IF Statements. Look at the image below… I am so confused (Yes False = Empty List), but the Condition shows true…

if then
if then2560×1342 207 KB

2

Try searching for similar questions. This has been covered many many times before. The IF node requires equal list structure.

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3

exactly, to avoid problems with the IF node, or you use an imperative function in a code block, or you use a python code like

if IN[0]:
	OUT = IN[1]
else:
	OUT = IN[2]

where IN[0] correspond the “test”, IN[1] the “true” and IN[2] the “false” of the IF OOTB node

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