IDictionary.Remove Method

Removes the element with the specified key from the IDictionary object.

Parameters

• key
  Type: System.Object
  The key of the element to remove.

Public Sub Remove(ByVal key As Object) Implements IDictionary.Remove
 If key = Nothing Then
 Throw New ArgumentNullException("key")
 End If
 ' Try to find the key in the DictionaryEntry array
 Dim index As Integer
 If TryGetIndexOfKey(key, index) Then
 ' If the key is found, slide all the items up.
 Array.Copy(items, index + 1, items, index, (ItemsInUse - index) - 1)
 ItemsInUse = ItemsInUse - 1
 Else
 ' If the key is not in the dictionary, just return. 
 End If
End Sub

public void Remove(object key)
{
 if (key == null) throw new ArgumentNullException("key");
 // Try to find the key in the DictionaryEntry array
 Int32 index;
 if (TryGetIndexOfKey(key, out index))
 {
 // If the key is found, slide all the items up.
 Array.Copy(items, index + 1, items, index, ItemsInUse - index - 1);
 ItemsInUse--;
 }
 else
 {
 // If the key is not in the dictionary, just return. 
 }
}

IDictionary Interface

System.Collections Namespace