Export HTML Table to Excel using ASP.NET

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I have an html table (Not Gridview) and that has no proper Header and rows. Instead it has customized structure and data. I want to export this table to Excel. How can I do

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萌比男神i

2020-11-28 14:06

If your data is databased (if not you could store in an XML file), then look at a similar question I posted recently.

Writing DataReader Rows to Excel File

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北荒

2020-11-28 14:13

You want Export HTML table (Not Gridview) customized structure and data to Excel using ASP.NET.

Try the following Approach

Provide the ID and add runat="server" attribute

<table id="tbl" runat="server" >

Add the following code

Response.ContentType = "application/x-msexcel"; 
Response.AddHeader("Content-Disposition", "attachment;
filename=ExcelFile.xls");
Response.ContentEncoding = Encoding.UTF8; 
StringWriter tw = new StringWriter();
HtmlTextWriter hw = new HtmlTextWriter(tw);
tbl.RenderControl(hw);
Response.Write(tw.ToString());
Response.End();

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长发绾君心

2020-11-28 14:19

You can use below code:

Response.ContentType = "application/force-download";
Response.AddHeader("content-disposition", "attachment; filename=Print.xls");
Response.Write("<html xmlns:x=\"urn:schemas-microsoft-com:office:excel\">");
Response.Write("<head>");
Response.Write("<META http-equiv=\"Content-Type\" content=\"text/html; charset=utf-     8\">");
Response.Write("<!--[if gte mso 9]><xml>");
Response.Write("<x:ExcelWorkbook>");
Response.Write("<x:ExcelWorksheets>");
Response.Write("<x:ExcelWorksheet>");
Response.Write("<x:Name>Report Data</x:Name>");
Response.Write("<x:WorksheetOptions>");
Response.Write("<x:Print>");
Response.Write("<x:ValidPrinterInfo/>");
Response.Write("</x:Print>");
Response.Write("</x:WorksheetOptions>");
Response.Write("</x:ExcelWorksheet>");
Response.Write("</x:ExcelWorksheets>");
Response.Write("</x:ExcelWorkbook>");
Response.Write("</xml>");
Response.Write("<![endif]--> ");
StringWriter tw = new StringWriter(); 
HtmlTextWriter hw = new HtmlTextWriter(tw);      
tbl.RenderControl(hw);
Response.Write(tw.ToString());
Response.Write("</head>");
Response.flush();

Also it is advicable to give inline css if you want the exported output look exactly same as your UI. If you apply css classes to the table then it would not be displayed in exported excel.

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孤城傲影

2020-11-28 14:24

If dtReport contains the table(i.e data to be exported) then we can export the table to excel by using the following LOC and also we can format the header

    if (dtReports != null && dtReports.Rows.Count > 0 && !string.IsNullOrEmpty(formName))
            {
                string filename = formName.ToUpper() + ParsConstant.XLS_EXTENSION;
                StringWriter tw = new StringWriter();

                using (HtmlTextWriter hw = new HtmlTextWriter(tw))
                {

                    //Binding Datatable to DataGrid.
                    DataGrid dgGrid = new DataGrid();
                    dgGrid.DataSource = dtReports;
                    dgGrid.DataBind();

                    //Some Properties for the Header
                    dgGrid.HeaderStyle.Font.Bold = true;
                    dgGrid.HeaderStyle.Font.Size = 13;

                    //Get the HTML for the control.
                    dgGrid.RenderControl(hw);


                    Response.ContentType = "application/vnd.ms-excel";
                    Response.AppendHeader("Content-Disposition", "attachment; filename=" + filename + "");
                    //Response.Write("<style> TD { mso-number-format:\\@; } </style>");


                    Response.Write(tw.ToString());
                    Response.End();
                }
            }

using MSO Format will not be avoiding leading zero's,but it will convert the text to string which is not advisable for doing operations.

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青春惊慌失措

2020-11-28 14:33

There's no automated way. But you could use the same code to create the table and write it to the output instead. If you write it as a simple CSV file, then the user can load it into Excel by simply clicking the downloaded file.

By setting the correct headers, you can direct the browser to treat the content as a download instead of a web page. I posted the code to do this in this article.

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