调试易

<asp:Repeater id="rptGuarantor" runat="server">
                                                                    <ItemTemplate>
                                                                        <tr id="trItemRow" height="20" class="ItemColor item" runat="server">
                                                                                                                    <td class="Item" align="left" width="150">
                                                                                <asp:LinkButton Id="lnkCustomerName" tabIndex="25" CommandName="CustomerName" Runat="server" CausesValidation="False">
                                                                                    <%# Util.HtmlEncode(DataBinder.Eval(Container, "DataItem.CustomerName"))%>
                                                                                </asp:LinkButton></td>td>                                                                        </tr>
                                                                    </ItemTemplate></asp:Repeater>

<asp:Repeater id="rptGuarantor" runat="server">
                                                                    <ItemTemplate>
                                                                        <tr id="trItemRow" height="20" class="ItemColor item" runat="server">
                                                                                                                    <td class="Item" align="left" width="150">
                                                                                <asp:LinkButton Id="lnkCustomerName" tabIndex="25" CommandName="CustomerName" Runat="server" CausesValidation="False">
                                                                                    <%# Util.HtmlEncode(DataBinder.Eval(Container, "DataItem.CustomerName"))%>
                                                                                </asp:LinkButton></td>td>                                                                        </tr>
                                                                    </ItemTemplate></asp:Repeater>

你得加个JS  或者 在后台做个判断  if(数据==“”或者数据==NULL)
{  
LinkButton显示
label隐藏
 }else
{
LinkButton隐藏
label显示
}

3#给的方法是不行的（个人意见，至少我是没找到可行的方法）用C#三元运算符应该可以解决
每个单元格内放一个LinkButton和一个Label
用LinkButton 的 visible属性判断是否有值，如果有值就返回false 空就 返回true
用Label 的 visible 属性判断是否有值，如果有值就返回true 空就返回false
这个是比较简单的方法，
Visible='<%# Convert.ToInt32(Eval("bulletincnt"))==0 %>'
给你这个例子呢就是判断  Convert.ToInt32(Eval("bulletincnt"))是0的话就是true就是显示
如果不是0的话就是false不显示，我觉得这个应该够清楚了，你只需判断是不是空就好拉

还有一种 你说的那么连接是不是超链接就可以实现的 如果可以换成《a> 在后台来判断也是可以的 前面绑定一个方法  后台如果空返回“<a> </a>” 不为空的话直接返回值 这样可以的