tristate property
If true this checkbox's value can be any one of true, false, or null.
If tristate is false, a null value for this checkbox will be interpreted as false. See Checkbox.tristate for more.
Implementation
final bool tristate;
If true this checkbox's value can be any one of true, false, or null.
If tristate is false, a null value for this checkbox will be interpreted as false. See Checkbox.tristate for more.
final bool tristate;