Export the values in List of class type to excel format c#

Question

How to Export the values in List of class type to excel format c#

Laxmidhar Sahoo · Answer

hi friend 1- addference of Microsoft Exel 12.0 Object library from com group 2-use some name space in your page or controller method like bellow using Microsoft.Office.Interop; using Microsoft.Office.Interop.Excel; using System.Runtime.InteropServices; using System.Reflection; using System.Data; using System.IO; the below method follow public ActionResult ImportExcel(FormCollection frm) { // OleDbConnection objConn = null; System.Data.DataTable dt = new System.Data.DataTable(); var file = Request.Files[0]; Microsoft.Office.Interop.Excel.Application oExcel = new Microsoft.Office.Interop.Excel.Application(); // File Pfile = Request.Files[0]; string excelFile = file.FileName; string filesavepath = Server.MapPath( exl ) + // + ex.xls ; file.SaveAs(filesavepath); string filepath = filesavepath; //pass that to workbook object Microsoft.Office.Interop.Excel.Workbook WB = oExcel.Workbooks.Open(filepath Missing.Value Missing.Value Missing.Value Missing.Value Missing.Value Missing.Value Missing.Value Missing.Value Missing.Value Missing.Value Missing.Value Missing.Value Missing.Value Missing.Value); // statement get the workbookname string ExcelWorkbookname = WB.Name; // statement get the worksheet count int worksheetcount = WB.Worksheets.Count; //int shetno = sheet.SelectedIndex; int shetno = 0; Microsoft.Office.Interop.Excel.Worksheet wks = (Microsoft.Office.Interop.Excel.Worksheet)WB.Worksheets[shetno + 1]; Microsoft.Office.Interop.Excel.Range range; // statement get the firstworksheetname try { string firstworksheetname = wks.Name; string str; int rCnt; int cCnt; int rw = 0; int cl = 0; range = wks.UsedRange; rw = range.Rows.Count; cl = range.Columns.Count; for ( int i = 0; i { string cna = Field + Convert.ToString(i + 1); dt.Columns.Add(cna); } for (rCnt = 0; rCnt { DataRow dr = dt.NewRow(); for (cCnt = 0; cCnt { string s = range.Value2[rCnt cCnt]; if (String.IsNullOrEmpty(s)) dr[cCnt] =  ; else dr[cCnt] = s; } dt.Rows.Add(dr); } //grid.DataSource = dt; //grid.DataBind(); WB.Close( true  null  null ); oExcel.Quit(); } catch (Exception ex) { // return null; } finally { Marshal.ReleaseComObject(wks); Marshal.ReleaseComObject(WB); Marshal.ReleaseComObject(oExcel); } return RedirectToAction( ImportExcel ); }