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SortedList<TKey, TValue>.IndexOfKey Method

Searches for the specified key and returns the zero-based index within the entire SortedList<TKey, TValue>.

Namespace:  System.Collections.Generic
Assembly:  System (in System.dll)

public int IndexOfKey(
	TKey key
)

Parameters

key
Type: TKey

The key to locate in the SortedList<TKey, TValue>.

Return Value

Type: System.Int32
The zero-based index of key within the entire SortedList<TKey, TValue>, if found; otherwise, -1.

ExceptionCondition
ArgumentNullException

key is null.

This method performs a binary search; therefore, this method is an O(log n) operation, where n is Count.

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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