| Class | Description |
| CalcManagerEventManager | Class for managing an _CALCMANAGER_'s events. It maintains an enabled flag for each event, a nested 'In Progress' counter, and it exposes methods for firing each event. |
| CalcSettings | Serves as a bridge binding an ordinary Control on the Page with an IUltraCalcReference proxy created to represent a single value from that Control within the calculation network. |
| CalcSettingsCollection | Collection containing the UltraWebCalcManager's CalcSettings objects. |
| CalcSettingsConverter | CalcSettingsConverter |
| ControlNameConverter | |
| ControlValueEventArgsBase | Base class for event arguments used in the ParseValue and FormatValue events. |
| FormatValueEventArgs | Event arguments for the _CALCMANAGER_.FormatValue event. |
| FormulaCircularityErrorEventArgs | Event args for FormulaCircularityError event of an IUltraCalcManager. |
| FormulaErrorEventArgs | Event arguments for the _CALCMANAGER_.FormulaError event. |
| FormulaSyntaxErrorEventArgs | Event args for FormulaSyntaxError event of an IUltraCalcManager. |
| NamedReference | Named references provide a shorthand representation for much longer formulas. |
| NamedReference.NamedReferenceConverter | A TypeConverter providing type conversion services for instances of NamedReference. |
| NamedReferenceResultChangedEventArgs | Event arguments for the NamedReferenceResultChanged event of the _CALCMANAGER_. |
| NamedReferencesCollection | Collection containing the UltraWebCalcManager's NamedReference objects. |
| NamedReferencesCollection.NamedReferencesCollectionConverter | A TypeConverter providing type conversion services for instances of NamedReference. |
| ParseValueEventArgs | Event arguments for the _CALCMANAGER_.ParseValue event. |
| UltraCalcUserDefinedLibraryBase | Used as a base class for a component that registers all user defined function in an assembly. |
| UltraWebCalcManager | Manages the provision of UltraCalc formula calculations in other extended web elements on it's page. |
| ValueDirtiedEventArgs | Base class for event arguments that have an associated IUltraCalcReference. |