SortedList<TKey, TValue>.Remove Method

Removes the element with the specified key from the SortedList<TKey, TValue>.

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

public bool Remove(
	TKey key
)

Parameters

key
Type: TKey

The key of the element to remove.

Return Value

Type: System.Boolean
true if the element is successfully removed; otherwise, false. This method also returns false if key was not found in the original SortedList<TKey, TValue>.

Implements

IDictionary<TKey, TValue>.Remove(TKey)

ExceptionCondition
ArgumentNullException

key is null.

This method performs a binary search; however, the elements are moved up to fill in the open spot, so this method is an O(n) operation, where n is Count.

The following code example shows how to remove a key/value pair from the sorted list using the Remove method.

This code example is part of a larger example provided for the SortedList<TKey, TValue> class.

// Use the Remove method to remove a key/value pair.
Console.WriteLine("\nRemove(\"doc\")");
openWith.Remove("doc");

if (!openWith.ContainsKey("doc"))
{
    Console.WriteLine("Key \"doc\" is not found.");
}

.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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