asp.net自定义控件开发使用HtmlTextWriter类输出

 public partial class WebUserControl1 : System.Web.UI.UserControl
    {
        protected void Page_Load(object sender, EventArgs e)
        {

        }
        protected override void Render(HtmlTextWriter writer)
        {
            #region <table>
            writer.AddAttribute(HtmlTextWriterAttribute.Width, "100%");
            writer.AddAttribute(HtmlTextWriterAttribute.Border , "0");
            writer.AddAttribute(HtmlTextWriterAttribute.Cellspacing, "0");
            writer.AddAttribute(HtmlTextWriterAttribute.Cellpadding, "0");
            writer.RenderBeginTag(HtmlTextWriterTag.Table);
            #region <tr>
            writer.RenderBeginTag(HtmlTextWriterTag.Tr);
            #region <td>
            writer.AddAttribute(HtmlTextWriterAttribute.Width, "10%");
            writer.AddAttribute(HtmlTextWriterAttribute.Align, "right");
            writer.RenderBeginTag(HtmlTextWriterTag.Td);
            writer.AddAttribute(HtmlTextWriterAttribute.Id, "time");
            writer.RenderBeginTag(HtmlTextWriterTag.Label);
            writer.Write("日期：");
            writer.RenderEndTag();
            writer.RenderEndTag();
            #endregion 
            #region <td>
            writer.AddAttribute(HtmlTextWriterAttribute.Width, "50%");
            writer.RenderBeginTag(HtmlTextWriterTag.Td);
            writer.AddAttribute(HtmlTextWriterAttribute.Type, "text");
            writer.AddAttribute(HtmlTextWriterAttribute.Id, "StartTime");
            writer.RenderBeginTag(HtmlTextWriterTag.Input);
            writer.RenderEndTag();

            writer.AddAttribute(HtmlTextWriterAttribute.Id, "zhi");
            writer.RenderBeginTag(HtmlTextWriterTag.Label);
            writer.Write("至");
            writer.RenderEndTag();

            writer.AddAttribute(HtmlTextWriterAttribute.Type, "text");
            writer.AddAttribute(HtmlTextWriterAttribute.Id, "EndTime");
            writer.RenderBeginTag(HtmlTextWriterTag.Input);
            writer.RenderEndTag();

            writer.AddAttribute(HtmlTextWriterAttribute.Href, "###");
            writer.RenderBeginTag(HtmlTextWriterTag.A);
            writer.Write("全部");
            writer.RenderEndTag();

            writer.AddAttribute(HtmlTextWriterAttribute.Href, "###");
            writer.RenderBeginTag(HtmlTextWriterTag.A);
            writer.Write("上月 ");
            writer.RenderEndTag();

            writer.AddAttribute(HtmlTextWriterAttribute.Href, "###");
            writer.RenderBeginTag(HtmlTextWriterTag.A);
            writer.Write("本月 ");
            writer.RenderEndTag();

            writer.AddAttribute(HtmlTextWriterAttribute.Href, "###");
            writer.RenderBeginTag(HtmlTextWriterTag.A);
            writer.Write("去年 ");
            writer.RenderEndTag();

            writer.AddAttribute(HtmlTextWriterAttribute.Href, "###");
            writer.RenderBeginTag(HtmlTextWriterTag.A);
            writer.Write("本年 ");
            writer.RenderEndTag();
            writer.RenderEndTag();
            #endregion
            #region <td>
            writer.AddAttribute(HtmlTextWriterAttribute.Align, "right");
            writer.RenderBeginTag(HtmlTextWriterTag.Td);
            writer.AddAttribute(HtmlTextWriterAttribute.Id, "Patient");
            writer.RenderBeginTag(HtmlTextWriterTag.Label);
            writer.Write("姓名：");
            writer.RenderEndTag();
            writer.RenderEndTag();
            #endregion
            #region <td>
            writer.RenderBeginTag(HtmlTextWriterTag.Td);
            writer.AddAttribute(HtmlTextWriterAttribute.Type, "text");
            writer.AddAttribute(HtmlTextWriterAttribute.Id, "PatientName");
            writer.AddAttribute(HtmlTextWriterAttribute.Class, "AddContactinput");
            writer.AddAttribute(HtmlTextWriterAttribute.Width, "145px");
            writer.RenderBeginTag(HtmlTextWriterTag.Input);
            writer.RenderEndTag();
            #endregion
            #region <td>
            writer.AddAttribute(HtmlTextWriterAttribute.Valign, "top");
            writer.AddAttribute(HtmlTextWriterAttribute.Width, "8%");
            writer.AddAttribute(HtmlTextWriterAttribute.Rowspan , "4");
            writer.RenderBeginTag(HtmlTextWriterTag.Td);
            writer.AddAttribute(HtmlTextWriterAttribute.Type, "button");
            writer.AddAttribute(HtmlTextWriterAttribute.Id, "btnSubmit");
            writer.AddAttribute(HtmlTextWriterAttribute.Class, "Filter_btn_Large");
            writer.AddAttribute(HtmlTextWriterAttribute.Onclick, "btnSubmit_Click");
            writer.RenderBeginTag(HtmlTextWriterTag.Button);
            writer.Write("搜索");
            writer.RenderEndTag();
            writer.RenderEndTag();
            #endregion
            writer.RenderEndTag();
            #endregion

            #region <tr>
            writer.AddAttribute(HtmlTextWriterAttribute.Class, "More_screening_box");
            writer.RenderBeginTag(HtmlTextWriterTag.Tr);
            #region <td>
            writer.AddAttribute(HtmlTextWriterAttribute.Width, "10%");
            writer.AddAttribute(HtmlTextWriterAttribute.Align, "right");
            writer.RenderBeginTag(HtmlTextWriterTag.Td);
            writer.AddAttribute(HtmlTextWriterAttribute.Id, "lb_diqu");
            writer.RenderBeginTag(HtmlTextWriterTag.Label);
            writer.Write("地区：");
            writer.RenderEndTag();
            writer.RenderEndTag();
            #endregion

            #region <td>
            writer.AddAttribute(HtmlTextWriterAttribute.Colspan, "3");
            writer.RenderBeginTag(HtmlTextWriterTag.Td);
            writer.RenderBeginTag(HtmlTextWriterTag.Select);
            writer.AddAttribute(HtmlTextWriterAttribute.Value, "000000000000");
            writer.AddAttribute(HtmlTextWriterAttribute.Selected, "True");
            writer.RenderBeginTag(HtmlTextWriterTag.Option);
            writer.Write("--选择省份--");
            writer.RenderEndTag();
            writer.RenderEndTag();

            writer.RenderBeginTag(HtmlTextWriterTag.Select);
            writer.AddAttribute(HtmlTextWriterAttribute.Value, "000000000000");
            writer.RenderBeginTag(HtmlTextWriterTag.Option);
            writer.Write("--选择地级市--");
            writer.RenderEndTag();
            writer.RenderEndTag();
            writer.AddAttribute(HtmlTextWriterAttribute.Type, "hidden");
            writer.AddAttribute(HtmlTextWriterAttribute.Id, "hidCity");
            writer.RenderBeginTag(HtmlTextWriterTag.Input);
            writer.RenderEndTag();
            writer.RenderBeginTag(HtmlTextWriterTag.Select);
            writer.AddAttribute(HtmlTextWriterAttribute.Value, "000000000000");
            writer.RenderBeginTag(HtmlTextWriterTag.Option);
            writer.Write("--选择县区--");
            writer.RenderEndTag();
            writer.RenderEndTag();
            writer.AddAttribute(HtmlTextWriterAttribute.Type, "hidden");
            writer.AddAttribute(HtmlTextWriterAttribute.Id, "hidArea");
            writer.RenderBeginTag(HtmlTextWriterTag.Input);
            writer.RenderEndTag();
            writer.RenderEndTag();
            #endregion
            writer.RenderEndTag();
            #endregion

            #region <tr>
            writer.AddAttribute(HtmlTextWriterAttribute.Class, "More_screening_box");
            writer.RenderBeginTag(HtmlTextWriterTag.Tr);
            #region <td>
            writer.AddAttribute(HtmlTextWriterAttribute.Width, "10%");
            writer.AddAttribute(HtmlTextWriterAttribute.Align, "right");
            writer.RenderBeginTag(HtmlTextWriterTag.Td);
            writer.AddAttribute(HtmlTextWriterAttribute.Id, "num");
            writer.RenderBeginTag(HtmlTextWriterTag.Label);
            writer.Write("编号：");
            writer.RenderEndTag();
            writer.RenderEndTag();
            #endregion

            #region <td>
            writer.RenderBeginTag(HtmlTextWriterTag.Td);
            writer.AddAttribute(HtmlTextWriterAttribute.Type, "text");
            writer.AddAttribute(HtmlTextWriterAttribute.Id, "txt_num");
            writer.AddAttribute(HtmlTextWriterAttribute.Class, "AddContactinput");
            writer.AddAttribute(HtmlTextWriterAttribute.Size, "30");
            writer.RenderBeginTag(HtmlTextWriterTag.Input);
            writer.RenderEndTag();
            writer.RenderEndTag();
            #endregion

            #region <td>
            writer.AddAttribute(HtmlTextWriterAttribute.Width, "10%");
            writer.AddAttribute(HtmlTextWriterAttribute.Align, "right");
            writer.RenderBeginTag(HtmlTextWriterTag.Td);
            writer.AddAttribute(HtmlTextWriterAttribute.Id, "jigouleixing");
            writer.RenderBeginTag(HtmlTextWriterTag.Label);
            writer.Write("类型：");
            writer.RenderEndTag();
            writer.RenderEndTag();
            #endregion

            #region <td>
            writer.RenderBeginTag(HtmlTextWriterTag.Td);
            writer.RenderBeginTag(HtmlTextWriterTag.Select);
            writer.AddAttribute(HtmlTextWriterAttribute.Width, "150px");
            writer.RenderBeginTag(HtmlTextWriterTag.Option);
            writer.RenderEndTag();
            writer.RenderEndTag();
            #endregion
            writer.RenderEndTag();
            #endregion
            writer.RenderEndTag();
            #endregion
        }
    }