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

  • Reference

Definition

Namespace:
System.Collections.Generic
Assemblies:
System.dll, System.Collections.dll
Assembly:
System.Collections.dll
Assembly:
System.dll
Assembly:
netstandard.dll
Source:
SortedList.cs
Source:
SortedList.cs
Source:
SortedList.cs

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

public:
 virtual bool Remove(TKey key);
public bool Remove (TKey key);
abstract member Remove : 'Key -> bool
override this.Remove : 'Key -> bool
Public Function Remove (key As TKey) As Boolean

Parameters

key
TKey

The key of the element to remove.

Returns

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

Remove(TKey)

Exceptions

ArgumentNullException

key is null.

Examples

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.");
}

// 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.");
}

' Use the Remove method to remove a key/value pair.
Console.WriteLine(vbLf + "Remove(""doc"")")
openWith.Remove("doc")

If Not openWith.ContainsKey("doc") Then
    Console.WriteLine("Key ""doc"" is not found.")
End If

// Use the Remove method to remove a key/value pair.
printfn "\nRemove(\"doc\")"
openWith.Remove("doc") |> ignore

if not (openWith.ContainsKey("doc")) then
    printfn "Key \"doc\" is not found."

Remarks

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.

Applies to

See also