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我有一个页面，我不想只在上面使用Visible="false"，因为它在页面上保留了一些空间。我不想预订座位。我该怎么做？也许用点凝胶？

  <asp:DataList ID="ImageList" runat="server" RepeatDirection="Horizontal" EditItemStyle-VerticalAlign="Top"
            RepeatColumns="4">           
            <ItemTemplate>
            <asp:PlaceHolder ID="phImage" runat="server" Visible="false">
                <div class="prodImagesBorder"> "SOME STUFF with auto length and width"
                    <div class="prodImages"> "SOME STUFF"
                        <div class="thumbnail"> "SOME STUFF"
                        </div>
                    </div>
                </div>
                </asp:PlaceHolder>
            </ItemTemplate>
        </asp:DataList>

编码背后：

    if(ImageTabel.Rows[i]["ImgUrl"].ToString() != lblOldImgUrl.Text)
                        {
                            PlaceHolder phImage = (PlaceHolder)ImageList.Items[i].FindControl("phImage");
                            phImage.Visible=true;
                        }