The following tables list the members exposed by ICollectionObject.
| Name | Description | |
|---|---|---|
 | Index | returns an integer Index of the item within its collection |
| Name | Description | |
|---|---|---|
 | GetObjectType | Called during ViewState operations to determine an index value that represents the type of a CollectionObject. Used only in situations where a collection can contain multipe types within it, where all the types still derive from CollectionObject. In the default case where there is only one type in the collection, the base implementation returns 0. |
| OnAddedToCollection | Called when this object is being added to the passed in collection. /// |
| OnRemovedFromCollection | Called when this object is being removed from the passed in collection. |
| SetDirty | Marks all properties of the object for saving to ViewState |