ImmutableList<T>::IndexOf Method (T, Int32, Int32, IEqualityComparer<T>^)
Searches for the specified object and returns the zero-based index of the first occurrence within the range of elements in the list that starts at the specified index and contains the specified number of elements.
Assembly: System.Collections.Immutable (in System.Collections.Immutable.dll)
public: virtual int IndexOf( T item, int index, int count, IEqualityComparer<T>^ equalityComparer ) sealed
Parameters
- item
-
Type:
T
The object to locate in the list The value can be null for reference types.
- index
-
Type:
System::Int32
The zero-based starting index of the search. 0 (zero) is valid in an empty list.
- count
-
Type:
System::Int32
The number of elements in the section to search.
- equalityComparer
-
Type:
System.Collections.Generic::IEqualityComparer<T>^
The equality comparer to use in the search.
Return Value
Type: System::Int32The zero-based index of the first occurrence of item within the range of elements in the list that starts at index and contains count number of elements, if found; otherwise, –1.
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