The following tables list the members exposed by IReadOnlyCollection<T>.
| Name | Description | |
|---|---|---|
![]()  | Contains | Returns true if the item is already in the collection | 
![]()  | IndexOf | Returns the zero-based index of the item or -1 | 
![]()  | ToArray | Returns this collection as an array | 
    
    
    
    
    
    
