必须更改内容页面而不刷新母版页吗？

Question

我们有一个包含主菜单和子菜单的母版页，如果单击主菜单，则在单击子菜单的内容后应显示相应的子菜单，内容页面应该更改而不刷新母版页。

Answer 1

Yes It possible easily.

You can use IFrame to open content page. put your iframe on master page and create your menu like
a href="http://www.microsoft.com" target="IFrame">Link Text

Let me know if this will not work for you.

Answer 2

you could put submenus into separate user controls. put a submenu in an update panel and change it when the main menu is clicked. the main menu can be the trigger for the update panel.

Answer 3

Add IFrame above content placeholder in master page

<iframe height="100%" width="100%"  name="iframe_a"> 
                    <asp:ContentPlaceHolder ID="ContentPlaceHolder" runat="server">
                    </asp:ContentPlaceHolder>
                     </iframe>