[]
Performs additional custom processes to validating adding items.
protected virtual void OnValidateNewItems(object oldItem, object[] newItems)
Protected Overridable Sub OnValidateNewItems(oldItem As Object, newItems As Object())
| Type | Name | Description |
|---|---|---|
| object | oldItem | An object indicates the old item when set item. |
| object[] | newItems | An object array indicates the new items. |