how to Design the exported excel in asp.net? - asp.net

Question

I am exporting gridview data to excel but that excel file add the some lable text and textbox values and format also taken , pls give how to design the excel code in asp.net. I am writing like this
All gridview data taken dataset ds
-pls give me textbox values and some label or normal text designed code in excel
GridView GridView1 = new GridView();
GridView1.AllowPaging = false;
GridView1.DataSource = ds;
GridView1.DataBind();
Response.Clear();
Response.Buffer = true;
Response.AddHeader("content-disposition",
"attachment;filename=DataTable.xls");
Response.Charset = string.Empty;
Response.ContentType = "application/vnd.ms-excel";
StringWriter sw = new StringWriter();
HtmlTextWriter hw = new HtmlTextWriter(sw);
for (int i = 0; i < GridView1.Rows.Count; i++)
{
////Apply text style to each Row
GridView1.Rows[i].Cells[4].Attributes.Add("class", "textmode");
}
GridView1.RenderControl(hw);
//style to format numbers to string
string style = #"<style> .textmode { mso-number-format:'\#,\#\#0\.00';}
.textmode1(mso-number-format:'\#';}
.SSNmode{mso-number-format:'000-00-000';} </style>";
Response.Write(style);
Response.Output.Write(sw.ToString());
Response.Flush();
Response.End();

Answer 1

Take a look at this awesome tool: http://www.carlosag.net/Tools/ExcelXmlWriter/
Futhermore, the author also created a code generator, which generates .net code from a provided excel sheet(formatting, layout and so on)
http://www.carlosag.net/Tools/ExcelXmlWriter/Generator.aspx
Here's some code that generates an excel file from a datatable (converted vb code, as pr. request by poster)
CarlosAg.ExcelXmlWriter.Workbook book = new CarlosAg.ExcelXmlWriter.Workbook();
book.ExcelWorkbook.ProtectWindows = false;
book.ExcelWorkbook.ProtectStructure = false;
var styles = book.Styles;
WorksheetStyle defaultStyle = styles.Add("Default");
var defStyles = defaultStyle;
defStyles.Name = "Normal";
defStyles.Font.FontName = "Calibri";
defStyles.Font.Size = 11;
defStyles.Font.Color = "#000000";
defStyles.Alignment.Vertical = StyleVerticalAlignment.Bottom;
Worksheet sheet = book.Worksheets.Add("Sheet1");
sheet.Table.DefaultRowHeight = 15f;
sheet.Table.FullColumns = 1;
sheet.Table.FullRows = 1;
DataTable dt = new DataTable(); //= your datatable
//Header
WorksheetRow HeaderRow = sheet.Table.Rows.Add();
foreach (DataColumn col in dt.Columns)
{
HeaderRow.Cells.Add(col.ColumnName.ToString());
}
//Body
foreach (DataRow dr in dt.Rows)
{
WorksheetRow row = sheet.Table.Rows.Add();
foreach (DataColumn cols in dt.Columns)
{
row.Cells.Add(dr[cols.ColumnName.ToString()].ToString());
}
}
sheet.Options.Selected = true;
sheet.Options.ProtectObjects = false;
sheet.Options.ProtectScenarios = false;
book.Save("path to file");