Array.FindLastIndex<T> Method (T, Int32, Predicate<T>)
[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]
Searches for an element that matches the conditions defined by the specified predicate, and returns the zero-based index of the last occurrence within the range of elements in the Array that extends from the first element to the specified index.
Assembly: mscorlib (in mscorlib.dll)
The type of the elements of the array.
The one-dimensional, zero-based Array to search.
- Type: System.Int32
The zero-based starting index of the backward search.
Return ValueType: System.Int32
The zero-based index of the last occurrence of an element that matches the conditions defined by match, if found; otherwise, –1.
The Array is searched backward starting at startIndex and ending at the first element.
The Predicate<T> is a delegate to a method that returns true if the object passed to it matches the conditions defined in the delegate. The elements of array are individually passed to the Predicate<T>.
This method is an O(n) operation, where n is the number of elements from the beginning of array to startIndex.