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

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Definition

Namespace:
System.Collections.Generic
Assembly:
System.Collections.dll
Assembly:
System.dll
Assembly:
netstandard.dll
Source:
SortedDictionary.cs
Source:
SortedDictionary.cs
Source:
SortedDictionary.cs

Removes the element with the specified key from the SortedDictionary<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 is not found in the SortedDictionary<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 dictionary using the Remove method.

This code example is part of a larger example provided for the SortedDictionary<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(vbLf + "Remove(""doc"")")
openWith.Remove("doc")

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

Remarks

If the SortedDictionary<TKey,TValue> does not contain an element with the specified key, the SortedDictionary<TKey,TValue> remains unchanged. No exception is thrown.

This method is an O(log n) operation.

Applies to

See also