DriveWorks Pro 24

Nullable

Nullable

Whether the value in the control can be empty.

When the nullable property is False, and the current value of the control is removed or deleted the control will default to the value applied to the Minimum property.

When the nullable property is True, and the current value of the control is removed or deleted the control will result in an empty or null value.

Property Type

Property Type: Static

A Static property can be made Dynamic (to control the value from a rule).

See Change a Static Property to a Dynamic Property.

Default Value

When the control is added the Default Value of this property will be set to False.

To change the default Static value:

Ensure the property is a static property (It will display the gray orb alongside the property name).

The default value of the static property can be changed by:

1. Click in the property for the control to be changed
2. Select the required value.

To build a rule to control the value:

See Build a Rule for the Dynamic Property.

Hierarchical Reference

When referencing the value of the property the following Hierarchical Reference is applied to the control:

• ControlName.Nullable