Close button click event

public partial class RadForm2 : RadTabbedForm
{
    public RadForm2()
    {
        InitializeComponent();
        this.TabbedFormControl.TabRemoved += TabbedFormControl_TabRemoved;
    }

    private void TabbedFormControl_TabRemoved(object sender, RadTabbedFormControlEventArgs e)
    {
     
    }
}