SortedList<TKey,TValue>.IndexOfValue(TValue) Method

Definition

Searches for the specified value and returns the zero-based index of the first occurrence within the entire SortedList<TKey,TValue>.

C#
public int IndexOfValue(TValue value);

Parameters

value
TValue

The value to locate in the SortedList<TKey,TValue>. The value can be null for reference types.

Returns

The zero-based index of the first occurrence of value within the entire SortedList<TKey,TValue>, if found; otherwise, -1.

Remarks

This method determines equality using the default comparer Comparer<T>.Default for the value type TValue. Comparer<T>.Default checks whether the value type TValue implements System.IComparable<T> and uses that implementation, if available. If not, Comparer<T>.Default checks whether the value type TValue implements System.IComparable. If the value type TValue does not implement either interface, this method uses Object.Equals.

This method performs a linear search; therefore, the average execution time is proportional to Count. That is, this method is an O(n) operation, where n is Count.

Applies to

Product Versions
.NET Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9, 10
.NET Framework 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1
.NET Standard 1.3, 1.4, 1.6, 2.0, 2.1
UWP 10.0

See also