C# HtmlForm.RenderControl方法代码示例

        public static void xlsport(GridView grd, string _fnm, Page p)
        {
            grd.Visible = true;
            gridstrip(grd);    
            grd.DataBind();

            HtmlForm form = new HtmlForm();
            string attachment = "attachment; filename=" + _fnm + csclass.ranfn() + ".xls";

            HttpContext.Current.Response.ClearContent();
            HttpContext.Current.Response.AddHeader("content-disposition", attachment);
            HttpContext.Current.Response.ContentType = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
            p.EnableViewState = false;
            HttpContext.Current.Response.Charset = string.Empty;

            System.IO.StringWriter stw = new System.IO.StringWriter();
            HtmlTextWriter htextw = new HtmlTextWriter(stw);

            form.Controls.Add(grd);
            p.Controls.Add(form);

            form.RenderControl(htextw);
            HttpContext.Current.Response.Write(stw.ToString());
            HttpContext.Current.Response.End();
        }

        protected void btnexporttoexc_Click(object sender, EventArgs e)
        {
            try
            {
                string sysDates = DateTime.Now.ToString("dd/MM/yyyy");
                string FileName = sysDates;
                string strFileName = FileName + ".xls";
                btnSearch_Click(sender, e);
                //GridViewExportUtil.ExportExcell(strFileName, Grdiworkreg);

                string attachment = "attachment; filename=" + strFileName + " ";
                Response.ClearContent();
                Response.AddHeader("content-disposition", attachment);
                Response.ContentType = "application/ms-excel";

                StringWriter sw = new StringWriter();
                HtmlTextWriter htw = new HtmlTextWriter(sw);

                HtmlForm frm = new HtmlForm();
                GridView2.AllowPaging = false;

                GridView2.Parent.Controls.Add(frm);
                frm.Attributes["runat"] = "server";
                frm.Controls.Add(GridView2);
                frm.RenderControl(htw);

                Response.Write(sw.ToString());
                Response.End();
            }
            catch (Exception ex)
            {
                ScriptManager.RegisterStartupScript(this, this.GetType(), "alert", "alert('" + ex.Message + "');", true);
            }
        }

        protected void btnExportErrors_Clicked(object sender, EventArgs e)
        {
            Response.Clear();
            Response.AddHeader("content-disposition", "attachment; filename=ImportErrorList.xls");
            Response.Charset = "";

            Response.ContentType = "application/vnd.xls";
            StringWriter stringWrite = new StringWriter();
            HtmlTextWriter htmlWrite = new HtmlTextWriter(stringWrite);
            HtmlForm newForm = new HtmlForm();
            this.Controls.Add(newForm);
            newForm.Controls.Add(gvErrorDetails);
            newForm.RenderControl(htmlWrite);
            Response.Write(stringWrite.ToString());
            Response.End();
            this.Dispose();
        }

 protected void btnExcel_Click(object sender, EventArgs e)
 {
     HtmlForm form = new HtmlForm();
     Response.Clear();
     Response.Buffer = true;
     Response.AddHeader("content-disposition",
      "attachment;filename=GridViewExport.xls");
     Response.ContentType = "application/ms-excel";
     Response.Charset = "utf-8";
     Response.ContentEncoding = System.Text.Encoding.UTF8;
     HttpContext.Current.Response.Write("<font style='font-size:10.0pt; font-family:Times New Roman;'>");
     HttpContext.Current.Response.Write("<BR><BR><BR>");
     StringWriter sw = new StringWriter();
     HtmlTextWriter hw = new HtmlTextWriter(sw);
     form.Controls.Add(grDSSum);
     this.Controls.Add(form);
     form.RenderControl(hw);
     Response.Write(sw.ToString());
     Response.End();
 }

        protected void btXuatExcel_Click(object sender, EventArgs e)
        {
            HtmlForm form = new HtmlForm();
            string fileName = string.Format("BaoCao_SuCo_NgungGiam_{0}", DateTime.Now.ToString("MMyyyy_ddhhmm"));
            Response.ClearContent();
            Response.Buffer = true;
            Response.AddHeader("content-disposition", "attachment; filename=" + fileName + ".xls");
            Response.ContentType = "application/ms-excel";
            Response.Charset = string.Empty;
            Response.ContentEncoding = Encoding.Unicode;
            Response.BinaryWrite(Encoding.Unicode.GetPreamble());
            StringWriter strWri = new StringWriter();
            HtmlTextWriter txtWri = new HtmlTextWriter(strWri);

            Load_Data();
            form.Controls.Add(gvSuCo);
            this.Controls.Add(form);
            form.RenderControl(txtWri);
            Response.Write(strWri.ToString());
            Response.End();
        }

        public static void Export(WebControl grid, Page page, string Filename, bool treatAsText, params int[] textColumns)
        {
            if ((treatAsText))
            {
                try
                {
                    foreach (GridViewRow row in ((GridView)grid).Rows)
                        if (textColumns == null || textColumns.Length == 0)
                        {
                            foreach (TableCell cell in row.Cells) cell.Attributes.Add("class", "text");
                        }
                        else
                        {
                            foreach (int i in textColumns) row.Cells[i].Attributes.Add("class", "text");
                        }
                }
                catch { }
            }

            HttpResponse response = HttpContext.Current.Response;
            response.Clear();
            response.Buffer = true;
            response.AddHeader("content-disposition", string.Concat("attachment;filename=", Filename));
            response.ContentEncoding = Encoding.Unicode;
            response.BinaryWrite(Encoding.Unicode.GetPreamble());

            response.Cache.SetCacheability(HttpCacheability.NoCache);
            response.ContentType = "application/vnd.ms-excel";
            page.EnableViewState = false;
            HtmlForm frm = new HtmlForm();
            page.Controls.Add(frm);
            frm.Controls.Add(grid);
            StringWriter stringWrite = new StringWriter();
            HtmlTextWriter htmlWrite = new HtmlTextWriter(stringWrite);
            frm.RenderControl(htmlWrite);
            response.Write(@"<style>.text { mso-number-format:\@; }</style>");
            response.Write(stringWrite.ToString());
            response.Flush();
            response.End();
        }

 protected void doPdfButton_Click(object sender, EventArgs e)
 {
     Response.ContentType = "application/pdf";
     Response.AddHeader("content-disposition", "attachment;filename=Export.pdf");
     Response.Cache.SetCacheability(HttpCacheability.NoCache);
     StringWriter sw = new StringWriter();
     HtmlTextWriter hw = new HtmlTextWriter(sw);
     HtmlForm frm = new HtmlForm();
     panel1.Parent.Controls.Add(frm);
     frm.Attributes["runat"] = "server";
     frm.Controls.Add(panel1);
     frm.RenderControl(hw);
     StringReader sr = new StringReader(sw.ToString());
     Document pdfDoc = new Document(PageSize.A4, 10f, 10f, 10f, 0f);
     HTMLWorker htmlparser = new HTMLWorker(pdfDoc);
     PdfWriter.GetInstance(pdfDoc, Response.OutputStream);
     pdfDoc.Open();
     htmlparser.Parse(sr);
     pdfDoc.Close();
     Response.Write(pdfDoc);
     Response.End();
 }

 protected void btLuu_Click(object sender, EventArgs e)
 {
     try
     {
         HtmlForm form = new HtmlForm();
         string fileName = string.Format("CORE_{0}", DateTime.Now.ToString("yyMMdd_hhmmss"));
         Response.ClearContent();
         Response.AddHeader("content-disposition", "attachment; filename=" + fileName + ".xls");
         Response.ContentType = "application/ms-excel";
         Response.Charset = string.Empty;
         Response.ContentEncoding = Encoding.Unicode;
         Response.BinaryWrite(Encoding.Unicode.GetPreamble());
         StringWriter strWri = new StringWriter();
         HtmlTextWriter txtWri = new HtmlTextWriter(strWri);
         form.Controls.Add(gvCore);
         this.Controls.Add(form);
         form.RenderControl(txtWri);
         Response.Write(strWri.ToString());
         Response.End();
     }
     catch { }
 }

 protected void btnExport_Click(object sender, EventArgs e)
 {
     HtmlForm form = new HtmlForm();
     Response.Clear();
     Response.Buffer = true;
     string filename="GridViewExport_"+DateTime.Now.ToString()+".xls";
     Response.AddHeader("content-disposition","attachment;filename="+filename);
     Response.Charset = "";
     Response.ContentType = "application/vnd.ms-excel";
     StringWriter sw = new StringWriter();
     HtmlTextWriter hw = new HtmlTextWriter(sw);
     gvParent.AllowPaging = false;
     //gvParent.DataBind();
     form.Controls.Add(gvParent);
     this.Controls.Add(form);
     form.RenderControl(hw);
     //style to format numbers to string
     string style = @"<style> .textmode { mso-number-format:\@; } </style>";
     Response.Write(style);
     Response.Output.Write(sw.ToString());
     Response.Flush();
     Response.End();
 }

        public static void pdfport(GridView gv, string fileName, int lans, Page p)
        {
            gv.Visible = true;
            gridstrip(gv);
            gv.DataBind();

            string attachment = "attachment; filename=" + fileName + csclass.ranfn() + ".pdf";

            HttpContext.Current.Response.ContentType = "application/pdf";
            HttpContext.Current.Response.AddHeader("content-disposition", attachment);
            HttpContext.Current.Response.Cache.SetCacheability(HttpCacheability.NoCache);
            StringWriter sw = new StringWriter();
            HtmlTextWriter hw = new HtmlTextWriter(sw);
            HtmlForm frm = new HtmlForm();
            gv.Parent.Controls.Add(frm);
            frm.Attributes["runat"] = "server";
            frm.Controls.Add(gv);
            frm.RenderControl(hw);
            StringReader sr = new StringReader(sw.ToString());
            Document pdfDoc = new Document(PageSize.A3, 10f, 10f, 10f, 0f);
            if (lans == 1)
            {
                pdfDoc.SetPageSize(iTextSharp.text.PageSize.A3.Rotate());
            }

            HTMLWorker htmlparser = new HTMLWorker(pdfDoc);
            PdfWriter.GetInstance(pdfDoc, HttpContext.Current.Response.OutputStream);
            pdfDoc.Open();
            htmlparser.Parse(sr);
            pdfDoc.Close();
            HttpContext.Current.Response.Write(pdfDoc);
            HttpContext.Current.Response.End();
        }

        public static void GenerateExcelFiles(string filename, GridView gv)
        {

            string attachment = "attachment; filename=" + filename + ".xls";

            HttpContext.Current.Response.ClearContent();

            HttpContext.Current.Response.AddHeader("content-disposition", attachment);

            HttpContext.Current.Response.ContentType = "application/ms-excel";

            StringWriter sw = new StringWriter();

            HtmlTextWriter htw = new HtmlTextWriter(sw);

            // Create a form to contain the grid

            HtmlForm frm = new HtmlForm();

            gv.Parent.Controls.Add(frm);

            frm.Attributes["runat"] = "server";

            frm.Controls.Add(gv);


            frm.RenderControl(htw);

            //GridView1.RenderControl(htw);

            HttpContext.Current.Response.Write(sw.ToString());

            HttpContext.Current.Response.End();
        }

        //protected static string ReadCss()
        //{
        //    string res;
        //    string fileName = string.Format("table.css");
        //    string path = Path.Combine(HttpRuntime.AppDomainAppPath, @"App_Themes\Default\" + fileName);
        //    using (StreamReader s = new StreamReader(path))
        //    {
        //        res = s.ReadToEnd();
        //    }
        //    return res;
        //}
        public static bool Save(WebControl grid, string path)
        {
            try
            {
                using (StreamWriter s = new StreamWriter(path, false, Encoding.Unicode))
                {
                    Page page = new Page();
                    page.EnableViewState = false;
                    HtmlForm frm = new HtmlForm();
                    frm.Attributes["runat"] = "server";
                    page.Controls.Add(frm);
                    frm.Controls.Add(grid);
                    StringWriter stringWrite = new StringWriter();
                    HtmlTextWriter htmlWrite = new HtmlTextWriter(stringWrite);
                    frm.RenderControl(htmlWrite);

                    string start = @"<style>.text { mso-number-format:\@; }</style>";
                    s.Write(start);
                    s.Write(stringWrite.ToString());
                }
                return true;
            }
            catch
            {
                throw;
            }
        }

        protected void btnWord_Click(object sender, EventArgs e)
        {
            HtmlForm form = new HtmlForm();
            //Response.Clear();
            //Response.Buffer = true;
            Response.AddHeader("content-disposition",
             "attachment;filename=GridViewExport.doc");
            Response.ContentType = "application/ms-word";
            Response.Charset = "UTF-8";
            Response.ContentEncoding = System.Text.Encoding.UTF8;
            //set font
            HttpContext.Current.Response.Write("<font style='font-size:10.0pt; font-family:Calibri;'>");
            HttpContext.Current.Response.Write("<BR><BR><BR>");
            //Response.BinaryWrite(System.Text.Encoding.UTF8.GetPreamble());
            StringWriter sw = new StringWriter();
            HtmlTextWriter hw = new HtmlTextWriter(sw);

            // Bỏ phân trang - Nếu chỉ muỗn Export Trang hiện hành thì chọn =true
            form.Controls.Add(grDSSum);
            this.Controls.Add(form);
            form.RenderControl(hw);
            //grDSSum.RenderControl(hw);
            //Thay đổi Style
            hw.WriteLine("<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\">");
            Response.Write(sw.ToString());
            //Response.Flush();
            Response.End();
        }