Boolean value show false always

[105302066]

Trying to get someone help
I am trying to compare two list (both are element ID ),but I wonder why the result show out always is false?(I already check that the id I want to compare is inside another list) . I also try the list in contain before, but the result still the same.

[blsalvio]

Hi @105302066,

Can you use List.Contains node instead of Contains node?

-Biboy

[105302066]

Thanks for your help ,but I try that also, it still cannot show true answer .For example element id 289950 at 103 ,you can see the result is still false

[khuzaimah.ElecEng]

are the same values have the same type ? integer ?

[105302066]

Thank you too ,but I try that before, it doesn’t work.

[105302066]

Sorry, I try myself but I can’t find out what type the number belong to. One of the is the element id I get in select model element ,another is the element id I read from the excel(the data in excel is from the same revit project that I export by schedule)

[jacob.small]

Likely this is mismatched data types.

Use an Object.Type node to confirm one set of nodes isn’t a string and the other an integer. If the types don’t match, convert one value using a String.ToNumber or a String.FromObject node.

[105302066]

Hi hi,I try to use object.type connect to them by both of them show the other type of data or warning, so I think they both are not the string and therefore cannot use string.to number or a string.fromobject. So I wonder if I change the data load from excel to element id by node change parameter to element id, can it work?
If that can, how should I input the data ?

[khuzaimah.ElecEng]

try to convert them both to string by stringFromObj node, then do what you want then turn them back to number by ToNumber node

[Peter_Jenkins]

Is there any trailing whitespace you need to filter out?

[Jan_Secnik]

Why not try something like this:

I know that values are not the same as yours, i just dont get why would you use List.Map

[105302066]

I use that before ,but it doesn’t work because the data does not belong to same data type.

[105302066]

Thanks guys. I did it .At first ,I find out that one data is in integer type and the other is in double type , so I use the node math.round to convert the integer value to double value and it worked！But anyway, thanks for you guys help.