使用Iframe

使用iframe可放在Table的列中

 <table border="1" cellpadding="1" style="width: 100%" >
          
           <tr>
               <td  valign="top"  class="leftSide">
               <ul >
                <asp:TreeView ID="TV_Medical" runat="server" OnSelectedNodeChanged="TV_Medical_SelectedNodeChanged" ShowLines="True">
                   <SelectedNodeStyle CssClass="leftNav_active" />
                    </asp:TreeView>
               </ul>
                 
                  
               </td>
               <td  valign="top">
               <iframe ></iframe>

 如果让网页在指定的Iframe中打开，使用语句

right.location=url

结合以前C#调用javascript语句：

RegisterStartupScript("", "<script type='text/javascript'>right.location=\"MedicalKnowledgDisplay_Right.aspx?TextId=all\";</script>");