Collection<(Of <(T>)>).Insert Method
[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]
Inserts an element into the Collection<(Of <(T>)>) at the specified index.
Namespace: System.Collections.ObjectModel
Assembly: mscorlib (in mscorlib.dll)
Syntax
Public Sub Insert ( _
index As Integer, _
item As T _
)
public void Insert(
int index,
T item
)
Parameters
- index
Type: System..::.Int32
The zero-based index at which item should be inserted.
- item
Type: T
The object to insert. The value can be nullNothingnullptra null reference (Nothing in Visual Basic) for reference types.
Implements
IList<(Of <(T>)>)..::.Insert(Int32, T)
Exceptions
| Exception | Condition |
|---|---|
| ArgumentOutOfRangeException | index is less than zero. -or- index is greater than Count. |
Remarks
Collection<(Of <(T>)>) accepts nullNothingnullptra null reference (Nothing in Visual Basic) as a valid value for reference types and allows duplicate elements.
If index is equal to Count, item is added to the end of Collection<(Of <(T>)>).
This method is an O(n) operation, where n is Count.
Notes to Inheritors
Derived classes can override InsertItem to change the behavior of this method.
Version Information
Windows Phone OS
Supported in: 8.1, 8.0, 7.1, 7.0
Platforms
Windows Phone