Collection.IList.Insert(Int32, Object) Method
Definition
Important
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Inserts an item to the Collection object at the specified index.
virtual void IListInsert(int index, System::Object ^ value) = System::Collections::IList::Insert;
void IList.Insert (int index, object value);
abstract member IListInsert : int * obj -> unit
override this.IListInsert : int * obj -> unit
Sub IListInsert (index As Integer, value As Object) Implements IList.Insert
Parameters
- index
- Int32
The zero-based index at which value
should be inserted.
- value
- Object
The Object to insert into the Collection object.
Exceptions
index
is not a valid index in the Collection object.
value
is null reference in the Collection object.
Remarks
If index
equals the number of items in the Collection object, then value
is appended to the end.
In collections of contiguous elements, such as lists, the elements that follow the insertion point move down to accommodate the new element. 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.