The Dimension interface implements the following collections.
| Collection | Description | 
|---|---|
| CustomProperties | The collection of user-defined properties. | 
| Levels | The set of Level objects associated with a dimension object. | 
The following table shows whether the collection is read/write (R/W) or read-only (R) for different objects.
| Database Dimension | Cube Dimension | Partition Dimension | Aggregation Dimension | |
|---|---|---|---|---|
| Custom Properties | R/W | R/W | R/W | R/W | 
| Levels | R/W | R | R | R |