Is it possible to cast the result of a LINQ Enumerable Selec

Question

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

tall-librarian-49374 · Answer

Yes you d need to flatten the collection e g with `SelectMany` I think

boundless-monkey-2042 · Answer

Thank you I ll try that Is there a docs you re aware of that covers this

tall-librarian-49374 · Answer

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

boundless-monkey-2042 · Answer

from the docs gt Implicit T to InputList lt T gt so applying a ToArray to the result SecurityRules = rules Select r = gt MapSecurityRules r ToArray worked bangbang

boundless-monkey-2042 · Answer

from here <https www pulumi com docs reference pkg dotnet Pulumi Pulumi InputList 1 html>

tall-librarian-49374 · Answer

Yes you can assign a collection to InputList

worried-city-86458 · Answer

You ll still want to flatten first with `SelectMany`

boundless-monkey-2042 · Answer

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

worried-city-86458 · Answer

You have `IEnumerable lt IEnumerable lt SecurityRuleArgs gt gt ` presumably from inner `MapSecurityRules` so to flatten use ```SecurityRules = rules SelectMany rule = gt 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 ```

worried-city-86458 · Answer

You flatten it to unroll the inner enumerable into the outer enumerable if that makes sense i e effectively this converts `IEnumerable lt IEnumerable lt SecurityRuleArgs gt gt ` to `IEnumerable lt SecurityRuleArgs gt `

boundless-monkey-2042 · Answer

Excellent thank you Sean