AjaxControlToolkit.TabContainer.RemovedControl C# (CSharp) Method

        protected override void RemovedControl(Control control)
        {
            var controlTabPanel = control as TabPanel;
            if(control != null && controlTabPanel.Active && ActiveTabIndex < Tabs.Count)
                EnsureActiveTab();

            controlTabPanel.SetOwner(null);
            base.RemovedControl(control);
        }