CARenderingStyle::UndefValue

ADE User Guide > ADE Server Class Reference > CARenderingStyle

property variant UndefValue

This property specifies the value returned when the Analytica value is Undefined. By default, ADE returns the special value variant Empty — for example, when GetAttribute is applied to an attribute that was not set. Some scripting languages cannot manipulate the value Empty. In this case, you can set UndefValue to something more convenient, such as Null or the empty string.

数据类型

variant：变体

Access

read/write

Usage

ade.DefaultRenderingStyle.[[CARenderingStyle::UndefValue|UndefValue] = Null;