Avalonia API Reference
Item
Adds an item to the ItemsControl.
Definition
Namespace: Avalonia.Controls
Assembly: Avalonia.Controls (in Avalonia.Controls.dll) Version: 11.3.999
The position into which the new element was inserted, or -1 to indicate that the item was not inserted into the collection.
Assembly: Avalonia.Controls (in Avalonia.Controls.dll) Version: 11.3.999
C#
public int Add(
Object? value
)VB
Public Function Add (
value As Object
) As IntegerF#
member Add :
value : Object -> int Parameters
- value Object
- The item to add to the collection.
Return Value
Int32The position into which the new element was inserted, or -1 to indicate that the item was not inserted into the collection.
Exceptions
| InvalidOperationException | The collection is in ItemsSource mode. |