Hi all, I only started working with dynamo last week and I really tried finding the answer to this, because it seems infuriatingly simple, but i’ve seriously hit a rock. How can I select a a set of elements that have a parameter value that contains or it si equal to something? Ie, i want to sele…

Hi @kveleva There are many ways to do that . Here is one way that , I think, is pretty clean : [image] [image]

Try selecting all elements of category and then filtering by a value in the parameter. [image]

You got more than you asked for! :slight_smile: Good work @Mostafa_El_Ayoubi !

I’m trying to achieve something similar. My goal is to override wall cut colors based on their base constraints. Here is what I have. Right now it changes every wall’s color regardless of their base constraint. My gut says I need to filter my list of walls somehow, but that’s the disconnect of my pr…

Look how @Mostafa_El_Ayoubi has a “list.first item” node you are missing.

Even with it I get the same result, the list is still all included in the first item. Can I add a branch to the tree somehow? Sorry for the inexperience/grasshopper lingo

My file so far Wall Base Constraints Color Override.dyn (10.0 KB)

The output of GroupbyFunction should be two lists, but it looks like equality doesn’t work for levels.

@kveleva Were you able to get the original ones to work for your parameters?

Select elements by parameter

Revit

Mostafa_El_Ayoubi October 15, 2016, 10:31am 17

Hi @dan_buys. This topic is not really adressing your issue. check out this one:

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Select elements by parameter

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