List<T>.IList.Add Method
Microsoft Silverlight will reach end of support after October 2021. Learn more.
Adds an item to the IList.
Namespace: System.Collections.Generic
Assembly: mscorlib (in mscorlib.dll)
Syntax
'Declaration
Private Function Add ( _
item As Object _
) As Integer Implements IList.Add
int IList.Add(
Object item
)
Parameters
- item
Type: System.Object
The Object to add to the IList.
Return Value
Type: System.Int32
The position into which the new element was inserted.
Implements
Exceptions
| Exception | Condition |
|---|---|
| ArgumentException | item is of a type that is not assignable to the IList. |
Remarks
If Count is less than Capacity, this method is an O(1) operation. If the capacity needs to be increased to accommodate the new element, this method becomes an O(n) operation, where n is Count.
Version Information
Silverlight
Supported in: 5, 4, 3
Silverlight for Windows Phone
Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0
XNA Framework
Supported in: Xbox 360, Windows Phone OS 7.0
Platforms
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.