以下代码的display和EnableClientScript属性各代表什么含义啊

               <asp:RequiredFieldValidator ID="StateReqValidator"
                    ControlToValidate="StateTextBox"
                    ErrorMessage="<br />Please enter a state."
                    Display="Dynamic"
                    EnableClientScript="False"
                    runat="server"/>display和EnableClientScript属性各代表什么含义啊