What is the function of the tabindex attribute in VB?

In VB, the TabIndex property is used to specify the focus order of controls within a form or container. By setting the TabIndex property of a control, you can control the order in which the focus switches when a user uses the Tab key. A lower TabIndex value will make the control receive focus first when switching focus, while a higher TabIndex value will make the control receive focus later. By setting the TabIndex property of a control, you can customize the focus switch order of users within a form or container, thereby improving user experience and interface accessibility.