https://learn.microsoft.com/zh-tw/dotnet/api/system.collections.objectmodel.readonlycollection-1.-ctor?view=netframework-4.8.1&viewFallbackFrom=net-10.0
ReadOnlyCollectionT(IListT) Constructor (System.Collections.ObjectModel) | Microsoft Learn
constructorsystemcollectionsmicrosoftlearn
https://learn.microsoft.com/es-es/dotnet/api/system.collections.objectmodel.readonlycollection-1?view=netframework-4.8.1
ReadOnlyCollectionT Class (System.Collections.ObjectModel) | Microsoft Learn
Provides the base class for a generic read-only collection.
class systemcollectionsmicrosoftlearn
https://learn.microsoft.com/cs-cz/dotnet/api/system.collections.objectmodel.readonlycollection-1?view=netframework-4.8.1&viewFallbackFrom=windowsdesktop-10.0
ReadOnlyCollectionT Class (System.Collections.ObjectModel) | Microsoft Learn
Provides the base class for a generic read-only collection.
class systemcollectionsmicrosoftlearn
https://learn.microsoft.com/en-us/dotnet/api/system.collections.objectmodel.readonlycollection-1?view=netframework-4.8.1&redirectedfrom=MSDN
ReadOnlyCollectionT Class (System.Collections.ObjectModel) | Microsoft Learn
Provides the base class for a generic read-only collection.
class systemcollectionsmicrosoftlearn
https://learn.microsoft.com/zh-tw/dotnet/api/system.collections.objectmodel.readonlycollection-1.system-collections-ilist-indexof?view=net-10.0
ReadOnlyCollectionT.IList.IndexOf(Object) Method (System.Collections.ObjectModel) | Microsoft...
Determines the index of a specific item in the IList.
ilistindexofobjectmethodsystem