'Declaration Public MustInherit Class UltraCalcUserDefinedFunction Inherits UltraCalcFunction
public abstract class UltraCalcUserDefinedFunction : UltraCalcFunction
User defined functions may be developed and registered with an UltraWebCalcManager instance by extending this class. Additionally, user defined classes must provide implmentations for the UltraCalcFunction class from which this class derives. Individual user defined functions, or entire function libraries packaged in assemblies, must be registered with the UltraWebCalcManager before being referenced by formulas. See the AddFunction and AddFunctionLibrary methods on the UltraCalcEngine class to register user defined functions.
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2