用RegularExpressionValidator 驗證手機號碼

                                                    <asp:RegularExpressionValidator ID="RegularExpressionValidator3"
                                                    runat="server" validationexpression= "(13[0-9]{9})|(159[0-9]{8})|([0-9]{4}-[0-9]{8})|([0-9]{3}-[0-9]{8})|([0-9]{4}-[0-9]{7})"
                                                        ErrorMessage="請輸入正確的號碼格式" ControlToValidate="txttechphone"></asp:RegularExpressionValidator>