EXPORTER UN DATAGRIDVIEW VERS EXCEL

#region ExporterDataGridVersExcel Surchargé Type #1
        ///<summary>
        ///Permet d'exporter un DataGrid vers excel
        ///</summary>
        /// <param name="dgView">Data Grid Source des données à Exporter vers Excel</param>
        ///<param name="unFichier">Fichier Excel de destination des données</param>
        ///<param name="strEnteteDeFichier">Libellé de l'en-tête du fichier à générer</param>
        public void ExporterDataGridVersExcel(DataGridView dgView, String unFichier, string strEnteteDeFichier)
        {
            int i = 0;
            int j = 0;
            try
            {
                ExcelApplication excel = new ExcelApplication();
                Workbook exbook = (Workbook)excel.Workbooks.Add(Missing.Value);
                Worksheet exsheet = (Worksheet)excel.ActiveSheet;
                //Double[] Totaux= new Double[4];

                //Mise en forme de l'en-tête de la feuille Excel
                exsheet.Cells[1, 1] = strEnteteDeFichier;
                Range r = exsheet.get_Range(Convert.ToChar(65 + i).ToString() + "1", Missing.Value);
                r.Interior.ColorIndex = XlColorIndex.xlColorIndexAutomatic;
                r.Font.Bold = true;
                r.BorderAround(XlLineStyle.xlContinuous, XlBorderWeight.xlThin, XlColorIndex.xlColorIndexAutomatic, Missing.Value);
                r.EntireColumn.AutoFit();//Fin de la mise en forme de l'en-tête.

                foreach (DataGridViewColumn ch in dgView.Columns)
                {
                    r = exsheet.get_Range(Convert.ToChar(65 + i).ToString() + "1", Missing.Value);
                    exsheet.Cells[2, i + 1] = ch.Name.Trim();
                    r.Interior.ColorIndex = XlColorIndex.xlColorIndexAutomatic;
                    r.Font.Bold = true;
                    r.BorderAround(XlLineStyle.xlContinuous, XlBorderWeight.xlThin, XlColorIndex.xlColorIndexAutomatic, Missing.Value);
                    r.EntireColumn.AutoFit();
                    i++;
                }
                j = 3;

                foreach (DataGridViewRow uneLigne in dgView.Rows)
                {
                    i = 1;
                    foreach (DataGridViewColumn uneColonne in dgView.Columns)
                    {
                        r = exsheet.get_Range(Convert.ToChar(65 + i - 1).ToString() + j.ToString(), Missing.Value);
                        exsheet.Cells[j, i] = "'" + uneLigne.Cells[uneColonne.Name].Value.ToString().Trim();
                        r.BorderAround(XlLineStyle.xlContinuous, XlBorderWeight.xlThin, XlColorIndex.xlColorIndexAutomatic, Missing.Value);
                        r.EntireColumn.AutoFit();
                        i++;
                    }
                    exsheet.Columns.AutoFit();
                    j++;
                }
                exsheet.SaveAs(unFichier, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value);
                excel.Quit();
            }
            catch (Exception ex)
            {
                throw (ex);
            }
        }//ExporterDataGridVersExcel
        #endregion //ExporterDataGridVersExcel