how to clear all textbox in asp.net

protected void Button1_Click(object sender, EventArgs e)
        {
            ClearInputs(Page.Controls);
        }
        void ClearInputs(ControlCollection ctrls)
        {
            foreach (Control ctrl in ctrls)
            {
                if (ctrl is TextBox)
                    ((TextBox)ctrl).Text = string.Empty;
                ClearInputs(ctrl.Controls);
            }
        }