asp.net 2.0 gridview 分页 跳转 警告窗口 注册事件

参考页面:
http://odetocode.com/Blogs/scott/archive/2006/03/21/3153.aspx
http://odetocode.com/Blogs/scott/archive/2006/03/20/3145.aspx
http://recordsome.blogsome.com/2006/05/30 

问题描述:EnableEventValidation="true"
  
Event validation is a feature designed to help prevent injection attacks (of course it can't prevent attacks all by itself).
   如果我们往服务器端生成的代码加入了客户端生成的数据,如果参考页面中提出的,下拉菜单的问题。
这样会提示出错信息
 
我是在做GridView的分页时,出现的问题。我把代码贴出来,大家看看。
<asp:GridView ID="gvDB" runat="server" CssSelectorClass="PrettyGridView" SkinID="GridView"
        OnPageIndexChanging
="gvDB_PageIndexChanging">   //这里用到一个CSS适配器
        
<EmptyDataTemplate>
            
<div align="center">
                没有相关资源
</div>
        
</EmptyDataTemplate>
        
<Columns>
            
<asp:TemplateField HeaderText="状态" ItemStyle-Width="35px">
                
<ItemTemplate>
                    
<%# CheckUserRight(Eval("RS_ID").ToString())%>
                
</ItemTemplate>
                
<ItemStyle BorderColor="#BFCCE1" HorizontalAlign="Center" Width="30px" />
            
</asp:TemplateField>
            
<asp:TemplateField HeaderText="资源名称">
                
<ItemTemplate>
                    
<target="_blank" href="SingleSearch.aspx?rsid=<%# Eval("RS_ID")%>" title="<%#DataBinder.Eval(Container.DataItem, "RS_Intro")%>">
                        
<%#DataBinder.Eval(Container.DataItem, "RS_Name")%></a>
                
</ItemTemplate>
                
<ItemStyle BorderColor="#BFCCE1" />
            
</asp:TemplateField>
        
</Columns>
    
</asp:GridView>

这是.SKIN文件下的设置
<asp:GridView SkinID="GridView" Runat="server" 
    CellPadding
="3" 
    GridLines
="None"
    BorderStyle
="solid" 
    BorderWidth
="2px" 
    BorderColor
="#465239"
    PagerSettings-Mode
="NextPreviousFirstLast"
    AllowPaging
="True" 
    PageSize
="12" 
    Width
="100%"
    AutoGenerateColumns
="False">
  
<PagerSettings PreviousPageImageUrl="~/images/resBrowser/button_previous.gif" NextPageImageUrl="~/images/resBrowser/button_next.gif"
                        FirstPageImageUrl
="~/images/resBrowser/button_first.gif" LastPageImageUrl="~/images/resBrowser/button_last.gif"
                        FirstPageText
="第一页" LastPageText="最后一页" Mode="NextPreviousFirstLast"
                        NextPageText
="下一页" PreviousPageText="前一页" />
    
<PagerStyle HorizontalAlign="Right" BackColor="#F9FAFD" ForeColor="#0099FF" Height="10px"
        BorderStyle
="Solid" BorderWidth="1px" BorderColor="#BFCEE1" />
</asp:GridView>

这是加到GridView后面的分页代码
<div style="text-align: center; font-size:small;"> 
<%  if (lblcurPage.Text != "1"
    {  
%> 
<input type="image" src="../images/resBrowser/button_first.gif" alt="首页" 
   onclick
="javascript:__doPostBack('ctl00$MainContent$gvDB','Page$First')"  />
<input type="image" src="../images/resBrowser/button_previous.gif" alt="前一页"
onclick
="javascript:__doPostBack('ctl00$MainContent$gvDB','Page$Prev')"  /> 
<% } %> 
<asp:Label ID="lblcurPage" runat="server" Text=''></asp:Label>页/共<asp:Label 
ID="lblPageCount" runat="server" Text=''></asp:Label>
<%  if (lblcurPage.Text != lblPageCount.Text) 
    {                   
%> 
<input type="image" src="../images/resBrowser/button_next.gif" alt="后一页"
  onclick
="javascript:__doPostBack('ctl00$MainContent$gvDB','Page$Next')"  />
<input type="image" src="../images/resBrowser/button_last.gif" alt="尾页" 
  onclick
="javascript:__doPostBack('ctl00$MainContent$gvDB','Page$Last')"  />
<% } %>  
跳转到第
<asp:textbox id="txtNewPageIndex" runat="server" width="20px" text='<%=gvDB.PageIndex+1 %>' />页 
<href="#" onclick="GoToPage()">跳转</a>
 
</div>
//javascript代码
function GoToPage()
{
    var curPage=$get('ctl00_MainContent_lblcurPage').innerHTML;
    var newPage=$get('ctl00_MainContent_txtNewPageIndex').value;
   if(curPage==newPage)
   {
       return;
   }
   __doPostBack('ctl00$MainContent$gvDB','Page$First');
}  

解决方案:
在.CS页面中加了一个事件注册处理:
     protected override void Render(HtmlTextWriter writer)
        {
            ClientScript.RegisterForEventValidation(gvDB.UniqueID, "Page$First");
            base.Render(writer);
        }
关于分页的做法,网上有很多做法。
我的任务是在原来的基础上加上分页的功能,这次改动不算太多。
欢迎大家讨论。
posted @ 2007-06-25 08:52  LeoXu  阅读(1414)  评论(0编辑  收藏  举报
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