I have this regukar expression validator but without special characters. please how can I have special chratcters too?
<asp:RegularExpressionValidator ID="Regex3" runat="server" Font-Size="8pt" ErrorMessage="Minimum of 8 characters [UpperCase, LowerCase and Number]" Font-Bold="true" ValidationExpression="^(?=.*[a-z])(?=.*[A-Z])(?=.*\d)[a-zA-Z\d]{8,}$" ControlToValidate="pass" ForeColor="Red"></asp:RegularExpressionValidator>