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OrderedDictionary.RemoveAt Method

Removes the entry at the specified index from the OrderedDictionary collection.

Namespace: System.Collections.Specialized
Assembly: System (in system.dll)

public void RemoveAt (
	int index
)
public final void RemoveAt (
	int index
)
public final function RemoveAt (
	index : int
)
Not applicable.

Parameters

index

The zero-based index of the entry to remove.

Exception typeCondition

NotSupportedException

The OrderedDictionary collection is read-only.

ArgumentOutOfRangeException

index is less than zero.

- or -

index is equal to or greater than Count.

The entries that follow the removed entry move up to occupy the vacated spot and the indexes of the entries that move are also updated.

The following code example demonstrates the modification of an OrderedDictionary collection. In this example, the RemoveAt method is used with the Count property to remove the last entry from the OrderedDictionary. This code is part of a larger code example that can be viewed at OrderedDictionary.

// Modifying the OrderedDictionary
if (!myOrderedDictionary.IsReadOnly)
{
    // Insert a new key to the beginning of the OrderedDictionary
    myOrderedDictionary.Insert(0, "insertedKey1", "insertedValue1");

    // Modify the value of the entry with the key "testKey2"
    myOrderedDictionary["testKey2"] = "modifiedValue";

    // Remove the last entry from the OrderedDictionary: "testKey3"
    myOrderedDictionary.RemoveAt(myOrderedDictionary.Count - 1);

    // Remove the "keyToDelete" entry, if it exists
    if (myOrderedDictionary.Contains("keyToDelete"))
    {
        myOrderedDictionary.Remove("keyToDelete");
    }
}

Windows 98, Windows Server 2000 SP4, Windows Millennium Edition, 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
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