TabControl.DeselectTab Method (Int32)
Makes the tab following the tab with the specified index the current tab.
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
Use this method to programmatically deselect a particular tab in a TabControl. If there are at least two tabs in the control, the tab following the specified tab becomes the current tab. If the specified tab is the last tab in the control, the first tab becomes the current tab.
Available since 2.0