Disable Tabs

Check this article for inspiration:

http://xlinesoft.com/asprunnerpro/docs/how_to_work_with_tab.htm

The TabPage class doesn't have an Enable property. You can get a similar effect simply by setting the Enable property of the controls on that page. That also avoids the problem of dealing with a TabControl that has only one page. For example:
public static void EnableTab(TabPage page, bool enable) {

EnableControls(page.Controls, enable);

}

private static void EnableControls(Control.ControlCollection ctls, bool enable) {

foreach (Control ctl in ctls) {

ctl.Enabled = enable;

EnableControls(ctl.Controls, enable);

}

}