Collection.IList.Insert Method
Microsoft Silverlight will reach end of support after October 2021. Learn more.
Inserts an item to the Collection object at the specified index. Implements the IList interface.
Namespace: Microsoft.VisualBasic
Assembly: Microsoft.VisualBasic (in Microsoft.VisualBasic.dll)
Syntax
'Declaration
Private Sub IListInsert ( _
index As Integer, _
value As Object _
) Implements IList.Insert
void IList.Insert(
int index,
Object value
)
Parameters
- index
Type: System.Int32
The zero-based index at which value should be inserted.
- value
Type: System.Object
The Object to insert into the Collection object.
Implements
Exceptions
| Exception | Condition |
|---|---|
| ArgumentOutOfRangeException | index is not a valid index in the Collection object. |
| NotSupportedException | The Collection object is read-only. -or- The Collection object has a fixed size. |
| NullReferenceException | 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.
Version Information
Silverlight
Supported in: 5, 4, 3
Platforms
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.