| Exception | Description | 
|---|---|
| Eplan.EplApi.Base.BaseException | Thrown when property cannot be set. | 
| Eplan.EplApi.DataModel.ObjectNotCreatedException | Thrown when the PropertyPlacement object has not been initialized. | 
| System.InvalidOperationException | Thrown when property cannot be set i.e. it is not possible to dock first PropertyPlacement. |