带有ImageButton的RadListView

Question

我在RadListView中添加了从数据库源读取的ASP.NET图像按钮，并将图像输出到RadListView。我的问题是我无法从RadButton中选择图片到图像。

<asp:Image ID="Image1" runat="server" Width="300px" />
<br />
<telerik:RadListView ID="RadListView3" runat="server" AllowPaging="True"
    onselectedindexchanged="RadListView3_SelectedIndexChanged"
    OnItemDataBound="RadListView3_ItemDataBound" PageSize="4"
    AllowCustomPaging="True" Skin="Vista">
    <LayoutTemplate>
        <asp:PlaceHolder ID="itemPlaceholder" runat="server"></asp:PlaceHolder>
    </LayoutTemplate>
    <ItemTemplate>
        <asp:ImageButton ID="ImageButton2" runat="server" Height="80px"
            ImageUrl='<%# Eval("Pic_Path") %>' onclick="ImageButton2_Click" 
            Width="60px" />
    </ItemTemplate>
</telerik:RadListView>

你能帮助我吗？

// ImageButton2_Click
foreach (RadListViewItem item in RadListView3.SelectedItems)
{
    ImageButton btn = (ImageButton)item.FindControl("ImageButton2");
    Image1.ImageUrl = btn.ImageUrl; 
}