以编程方式填充html表格单元格

我想循环浏览我使用C#代码创建的一个表，并显示从格式化为表的Sharepoint列表中提取的数据。这是我想出的代码：

    protected override void RenderContents(HtmlTextWriter output)
    {
        try
        {
            SPSite thisSite = SPControl.GetContextSite(Context);
            using (SPWeb topWeb = thisSite.OpenWeb("/"))
            {
                SPList newsList = topWeb.Lists["Headlines"];
                SPQuery query = new SPQuery();
                query.ExpandRecurrence = true;
                query.Query = NewsListCamlQuery;
                query.RowLimit = 2;
                SPListItemCollection coll = newsList.GetItems(query);
                output.Write("<table border='0' style='width: 100%;'><tbody>");
                for (int i = 0; i < 2; i++)
                {
                    output.Write("<tr>");
                    for (int j = 0; j < 3; j++)
                    {
                        output.Write("<td>");
                        foreach (SPListItem item in coll)
                        {
                            int newsID = int.Parse(item.ID.ToString());
                            output.Write("<hr/>");
                            output.Write("<table style='width: 100%; height: 143px;'><tbody>");
                            output.Write("<tr><td valign='top'><h4>");
                            output.Write(item["Title"].ToString());
                            output.Write("</h4></td></tr>");
                            output.Write("<tr><td valign='top'><h4 class='ms-rteElement-H4B'><span style='font-size: 8pt;'>");
                            output.Write(item["Sub_x0020_Heading"].ToString());
                            output.Write("</span></h4></td></tr>");
                            output.Write("<tr><td valign='top'><span style='font-size: 8pt;'>");
                            output.Write("<img class='image' src='");
                            //output.Write(item["Photo"].ToString());
                            output.Write("' Width='64px' Height='48px' Border='0' alt='' style='margin: 5px;'/>");
                            output.Write(item["Details"].ToString());
                            output.Write("</span></td></tr>");
                            output.Write("<tr><td valign='top'>");
                            output.Write("<a class='mt-linkMore' href='/Lists/Headlines/DispForm.aspx?ID=");
                            output.Write(newsID);
                            output.Write("' <span style='font-size: 6pt;'>Read More</span></a></td></tr>");
                            output.Write("</tbody></table>");
                        }
                        output.Write("</td>");
                    }
                    output.Write("</tr>");
                }
                output.Write("</tbody></table>");
            }
        }
        catch (Exception exception)
        {
            output.Write("Error : " + exception.Message);
        }
    }

此代码当前正在每个单元格中重新写入相同的记录。我希望它显示从Sharepoint列表中提取的六条记录。