How to combine the two parameter..?

Dear all,
Could you please help in this matter, i tried to combine the parameter to one single parameter but its not working for me. I saw the post from Jonathan_Roy; same thing followed. Those parameters are shared parameters (Project Number and Sheet Number)
I need those parameter combined in Drawing No.

Thanks

Try concatenating first the list before you plug it in to the value of your setparameterbyname node.

i tried but its not working

Will this work for you?

Can you share with us the problem? I have tried the same method and its working well. See below. Thanks.

i don’t know how you got the second line with code block

@Baiju_John I would suggest you go through the basics of Code Block. Here is an Overview about Code Blocks
http://dynamoprimer.com/en/07_Code-Block/7_Code-Blocks-and-Design-Script.html