为何变量的值SmlImgUrl永远是datalist绑定的最后一个label的值?
<asp:DataList ID= "ShowOtherPicDL " runat= "server ">
<ItemTemplate >
<img src= '../ <%#Eval( "OtherImgUrlSml ") %> '/> <asp:LinkButton ID= "DelectPic " runat= "server " OnClick= "DelectPic_Click "> 删除图片 </asp:LinkButton> <asp:Label ID= "SmlImgUrlLB " runat= "server " Text= ' <%# Eval( "OtherImgUrlSml ") %> ' Visible= "true "> </asp:Label>
</ItemTemplate>
</asp:DataList>

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Public SmlImgUrl As String

Protected Sub ShowOtherPicDL_ItemDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.DataListItemEventArgs) Handles ShowOtherPicDL.ItemDataBound
SmlImgUrl = CType(e.Item.FindControl( "SmlImgUrlLB "), Label).Text.ToString
End Sub

Protected Sub DelectPic_Click(ByVal sender As Object, ByVal e As System.EventArgs)
System.IO.File.Delete(Server.MapPath( "../ ") + SmlImgUrl)
BindData()
End Sub

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比如有10张图片，无论我点哪一张图片的LinkButton，他永远是删除第10张图片，如果我再点任何一张图片，他就删除第9张图片，如此类推，总是从后面一张一张倒数删除。也就是得到的变量SmlImgUrl永远是datalist绑定的最后一个label的值。label显示的图片路径没有错啊。。是不是要写什么循环之类的？

[解决办法]
还是没弄明白吗？

好好想想 DelectPic_Click 里面使用的 SmlImgUrl 怎么得到的

在下面这句打个断点，跟踪一下，看看执行了多少次，最后一次值是什么
SmlImgUrl = CType(e.Item.FindControl( "SmlImgUrlLB "), Label).Text.ToString

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DataListItem item = btn.NamingContainer;

> >

DataListItem item = btn.NamingContainer as DataListItem;

今天代码写晕了，总丢三落四～



[解决办法]
Ctype关键字
DirectCast关键字

http://blog.csdn.net/lzmtw/archive/2004/11/21/189758.aspx