Double Sorting

[kvusal]

Dear Friends,
how can we make double sorting. I mean firstly sort by Valve type then by size of valve. I prepared photo what i mentioned.

[Jimmy_G]

It might not be the cleanest way but it should work

[Scott_Crichton]

Or if the prefix to the values are always going to be the same, you could remove the prefix of the strings and use the SortByFunction node.

[jacob.small]

Using a List.GroupByKey node and feeding that into a List.SortByKey with lacing set to longest should also work without requiring python.