allowNeutral

Specifies whether the check box or radio button can support an additional third state that represents a neutral value.

Reference_Syntax.allowNeutral = "0 | 1"

Type

Values

String

0 (default)

The check box or radio button supports two states representing true or false.

The check box or radio button supports three states. These are true, false, or neutral.

Model	Object
Form Model	checkButton

XFA 2.1

CheckBox1.resolveNode("ui.#checkButton").allowNeutral = "1";

CheckBox1.ui.#checkButton.allowNeutral = "1"