ExtensionsIndexOfT(IListT, Int32, FuncT, Boolean) - метод

public static int IndexOf<T>(
	this IList<T> list,
	int startIndex,
	Func<T, bool> predicate
)

<ExtensionAttribute>
Public Shared Function IndexOf(Of T) ( 
	list As IList(Of T),
	startIndex As Integer,
	predicate As Func(Of T, Boolean)
) As Integer

public:
[ExtensionAttribute]
generic<typename T>
static int IndexOf(
	IList<T>^ list, 
	int startIndex, 
	Func<T, bool>^ predicate
)

[<ExtensionAttribute>]
static member IndexOf : 
        list : IList<'T> * 
        startIndex : int * 
        predicate : Func<'T, bool> -> int