EnumerableExtensionsIndexOf(IEnumerable, FuncObject, Boolean) Method
Searches for an element in the source enumeration where the specified predicate returns .
Namespace: KGySoft.CoreLibrariesAssembly: KGySoft.CoreLibraries (in KGySoft.CoreLibraries.dll) Version: 9.0.0
public static int IndexOf(
this IEnumerable source,
Func<Object?, bool> predicate
)
<ExtensionAttribute>
Public Shared Function IndexOf (
source As IEnumerable,
predicate As Func(Of Object, Boolean)
) As Integer
public:
[ExtensionAttribute]
static int IndexOf(
IEnumerable^ source,
Func<Object^, bool>^ predicate
)
[<ExtensionAttribute>]
static member IndexOf :
source : IEnumerable *
predicate : Func<Object, bool> -> int
- source IEnumerable
- The source enumeration to search.
- predicate FuncObject, Boolean
- The predicate to use for the search.
Int32The index of the found element, or -1 if there was no match.In Visual Basic and C#, you can call this method as an instance method on any object of type
IEnumerable. When you use instance method syntax to call this method, omit the first parameter. For more information, see
Extension Methods (Visual Basic) or
Extension Methods (C# Programming Guide).