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ICollection.Remove Method

Removes the first occurrence of a specific object from the ICollection.

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

bool Remove (
	T item
)
boolean Remove (
	T item
)
function Remove (
	item : T
) : boolean
Not applicable.

Parameters

item

The object to remove from the ICollection.

Return Value

true if item was successfully removed from the ICollection; otherwise, false. This method also returns false if item is not found in the original ICollection.

Exception typeCondition

NotSupportedException

The ICollection is read-only.

Implementations can vary in how they determine equality of objects; for example, List uses Comparer.Default, whereas, Dictionary allows the user to specify the IComparer implementation to use for comparing keys.

In collections of contiguous elements, such as lists, the elements that follow the removed element move up to occupy the vacated spot. If the collection is indexed, the indexes of the elements that are moved are also updated. This behavior does not apply to collections where elements are conceptually grouped into buckets, such as a hash table.

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0

.NET Compact Framework

Supported in: 2.0

XNA Framework

Supported in: 1.0

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