文件下载问题

[bl_song]

前台：
<asp:Repeater ID="fileList" runat="server" OnItemCommand= "Repeater1_ItemCommand" >
                    <ItemTemplate>
                    <dl class="Middle TC">
                        <dd class="Left" style="width: 50px">
                            <%#Eval("BidID") %>
                        </dd>
                        <dd class="Right" style="width: 50px">
                            <asp:LinkButton ID="lbtDown" runat="server" CommandName="Down" CommandArgument='<%#Eval("BidFile") %>'>点击下载</asp:LinkButton></dd>
                        <dd class="Right" style="width: 120px">
                            <%#Convert.ToDateTime(Eval("BidAddTime")).ToString("yyyy-MM-dd HH:mm:ss")%></dd>
                        <dd class="TL">
                            <%#Eval("BidTitle") %></dd>
                    </dl>
                    </ItemTemplate>                    
                    </asp:Repeater>

后台：
protected void Repeater1_ItemCommand(object source, RepeaterCommandEventArgs e)
    {
        if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
        {
            if (e.CommandName == "Down")
            {
                LinkButton   delete   =   (LinkButton)e.Item.FindControl( "lbtDown");

                string fileName = HttpContext.Current.Server.UrlEncode(e.CommandArgument.ToString());
                string filePath = HttpContext.Current.Server.MapPath("~/"+e.CommandArgument.ToString());
                FileInfo info = new FileInfo(filePath);
                long fileSize = info.Length;
                Response.Clear();
                Response.ContentType = "application/x-zip-compressed";
                Response.AddHeader("Content-Disposition", "attachment;filename=" + fileName);
                //不指明Content-Length用Flush的话不会显示下载进度   
                Response.AddHeader("Content-Length", fileSize.ToString());
                Response.TransmitFile(info.FullName);
                Response.Flush();
                Response.Close(); 
            }
        }
    }

代码就是以上，我在Repeater的ItemTemplate中有一个LinkButton，点击这个LinkButton希望能够下载绑定的文件，文件在后台要变为绝对路径；
问题是 我点击下载是，页面上的数据就消失，没有弹出下载提示框，不知道咋回事？有高手指点一下，谢谢了！

[ws_hgo]

用DataList做很简单

 public void ShowLoad()
    {
        DownLoad.Version = "cn";
        DownLoad.IsChecked = true;
        DataTable dt = WebManager.List(DownLoad, "", "[ID],[Title],[FileUrl]", "&version=&ischecked=", "[OrderNo]");
        DLLoadListInfo.DataSource = dt.DefaultView;
        DLLoadListInfo.DataBind();
    }

  <asp:DataList ID="DLLoadListInfo" runat="server">
        <ItemTemplate>
                 <table width="230" border="0" style="margin-left:10px;" align="center" cellpadding="0" cellspacing="0">
      <tr>
        <td valign="top"><a href="<%#Eval("FileUrl") %>">·<%#Eval("Title") %></a></td>
      </tr>
     
    </table>
        </ItemTemplate>
        </asp:DataList>

[jamesfay]

commandbutton会postback，然后数据就没了

[messi_yang]

樓上方法可行~~

[bl_song]

[Quote=引用 1 楼 ws_hgo 的回复:]
用DataList做很简单

C# codepublicvoid ShowLoad()
{
DownLoad.Version="cn";
DownLoad.IsChecked=true;
DataTable dt= WebManager.List(DownLoad,"","[ID],[Title],[FileUrl]","&version=&ischecked=","[OrderNo]");
DLLoadListInfo.DataSource= dt.DefaultView;
DLLoadListInfo.DataBind();
}
HTML code<asp:DataListID="DLLoadListInfo" runat="server"><ItemTemplate><tablewidth="230" border="0" style="margin-left:10px;" align="center" cellpadding="0" cellspacing="0"><tr><tdvalign="top"><ahref="<%#Eval("FileUrl") %>">·<%#Eval("Title")%></a></td></tr></table></ItemTemplate></asp:DataList>
[/Quote]代码不是很懂，能结合我的例子说明一下吗？

[紫魂一号]

<a href="下载文件地址">下载</a>就可以弹出下载框了。。

[insus]

参考:
http://www.cnblogs.com/insus/articles/1411761.html