{
    didSet
    {
        updateRightView()
    }
}

{
        //for right Image
        if let image = rightImage
        {

button.imageEdgeInsets = UIEdgeInsetsMake(0, -16, 0, 0)
            button.frame = CGRect(x: 0, y: 0, width: 29, height: 29)
           // button.addTarget(self, action: #selector(self.refresh), for: .touchUpInside)
            rightView = button
            rightViewMode = .always

        } else
        {
            rightViewMode = UITextFieldViewMode.never
            rightView = nil
        }
    }