Repeater实现颜色交替

 <table cellpadding="0" cellspacing="1" border="0" width="100%" style="background-color:#efefef">
                        <tr>
                            <td class="tdCenter">讨论组</td>
                            <td class="tdCenter">创建时间</td>
                            <td class="tdCenter">是否可用</td>
                            <td class="tdCenter">编辑</td>
                        </tr>
                        <asp:Repeater ID="rptOrg" runat="server" OnItemCommand="rptOrg_ItemCommand" OnItemDataBound="rptOrg_ItemDataBound">
                            <ItemTemplate>
                                <tr );

            lbtnDel.OnClientClick = "javascript:return confirm('您确定要删除该项么?')";
            lbtnDel.CommandName = "Delete";
            lbtnDel.CommandArgument = OrgID;
          
            int i = e.Item.ItemIndex % 2;
            if (i == 0)
            {
                ((HtmlTableRow)e.Item.FindControl("trOrgInfo")).BgColor = "#ffffff";
            }
            else
            {
                ((HtmlTableRow)e.Item.FindControl("trOrgInfo")).BgColor = "#f9f9f9";
            }
        }
    }