Is it possible to cast the result of a LINQ Enumerable.Select 'System.Collections.Generic.IEnumerable<System.Collections.Generic.IEnumerable<Pulumi.AzureNative.Network.Inputs.SecurityRuleArgs>>' to 'Pulumi.InputList<Pulumi.AzureNative.Network.Inputs.SecurityRuleArgs>' ? All the values come from directly from a Pulumi.dev.yaml none are Outputs

Yes, you’d need to flatten the collection, e.g. with

SelectMany

, I think.

Thank you, I'll try that. Is there a docs you're aware of that covers this?

Not sure… if you have a repro snippet, I can take a look.

from the docs --> Implicit(T[] to InputList<T>) so applying a .ToArray() to the result SecurityRules = (_rules.Select(r => MapSecurityRules (r))).ToArray(), worked‼️

Yes, you can assign a collection to InputList

You'll still want to flatten first with

SelectMany

?

Sean, do you have an example? Why would I "flatten" my yaml?

You have

IEnumerable<IEnumerable<SecurityRuleArgs>>

presumably from inner

MapSecurityRules

, so to flatten use:

SecurityRules = _rules.SelectMany(rule => MapSecurityRules(rule)).ToArray() // or ToImmutableArray()

then if I read that correctly you should be able to use method group syntax:

SecurityRules = _rules.SelectMany(MapSecurityRules).ToArray() // or ToImmutableArray()

Excellent! thank you Sean