Controlling Visibility of Shapes
You can control visibility of any presentation shape, chart, or
control at runtime
using its dynamic property Visible.
To define whether a
(control, chart) should be visible at runtime
- Select the element in the graphical editor, or in the Projects view.
- Go to the shape's Properties.
- Switch the Visible
control to the dynamic mode.
- Type a boolean expression specifying the visibility of the element
in the Visible edit box. The shape will be visible
when the specified expression evaluates to true,
and not visible otherwise. You can call your own boolean
function that returns true or false depending on some object's state at