Gets or sets a value specifying the visibility of the group.
true if the group is visible; otherwise false.
Use the Visible property of groups to dynamically change the content of the navbar control. This property enables you to hide and display specific groups when certain conditions are met.
Note that the Visible and NavBarGroup.VisibleIndex properties are interdependent. The false value assigned to the Visible property sets the NavBarGroup.VisibleIndex property to -1. Setting the Visible property back to true makes the NavBarGroup.VisibleIndex property set to a non-negative value it has previously.
If a group's server Visible property is set to false, the group is not rendered into the web page at all, so it can't be manipulated on the client side.