Javascript to generate excel 1

using System;
using System.Text;

namespace CCC.Utility
{
	/// <summary>
	/// Summary description for JSExcel.
	/// </summary>
	public class Excel4JavaScript
	{
		private string _ReportTemplate_Excel_FileName = null;
		private int _Used_WorkSheet_MaxIndex = 0;
		StringBuilder _SB_JavaScript_Text = new StringBuilder();
		private int _WorkSheetCount = 1; 
		private int _OriginalSheetCount = 1;
 
		public Excel4JavaScript(string strFileName)
		{
			_ReportTemplate_Excel_FileName = strFileName;
		}
		public Excel4JavaScript(string strFileName, int originalSheetCount)
		{
			_WorkSheetCount = originalSheetCount;
			_OriginalSheetCount = originalSheetCount;
			_ReportTemplate_Excel_FileName = strFileName;
		}               

		public void SetWorkSheetName(int sheetIndex, string strWorkSheetName)
		{
			_SB_JavaScript_Text.Append("objSheet").Append(sheetIndex).Append(".Name='").Append(strWorkSheetName).Append("';").Append("\r\n");
		}
		
		public void CopyWorkSheet(int sheetIndex, string sheetName)
		{
			_WorkSheetCount += 1;
			_SB_JavaScript_Text.Append("objSheet").Append(sheetIndex).Append(".Copy(null, objWorkBook.Worksheets(objWorkBook.Worksheets.count));").Append("\r\n");
			_SB_JavaScript_Text.Append("objSheet").Append(_WorkSheetCount).Append(" = objWorkBook.Worksheets(").Append(_WorkSheetCount).Append(");").Append("\r\n");
			_SB_JavaScript_Text.Append("objSheet").Append(_WorkSheetCount).Append(".Name='").Append(sheetName).Append("';").Append("\r\n");
		}

		public void HideSheet(int sheetIndex)
		{
		//	_WorkSheetCount -= 1;
			_SB_JavaScript_Text.Append("objSheet").Append(sheetIndex).Append(".Visible = false;").Append("\r\n");
		}

		public void WriteCell( int sheetIndex, int row, int col, string strCellValue)
		{
			if(_Used_WorkSheet_MaxIndex < sheetIndex)
			{
				_Used_WorkSheet_MaxIndex = sheetIndex;
			}
			_SB_JavaScript_Text.Append("objSheet").Append(sheetIndex).Append(".Cells(").Append(row).Append(",").Append(col).Append(").value = '").Append(strCellValue).Append("';").Append("\r\n");
		}
 
        
		public  void WriteComment( string strCellValue, int RowStart, int ColStart, int sheetIndex)
		{
			WriteCell(sheetIndex,RowStart,ColStart,strCellValue);
 
		}       
 
		public void DeleteColumn(int col, int sheetIndex)
		{
			if(_Used_WorkSheet_MaxIndex < sheetIndex)
			{
				_Used_WorkSheet_MaxIndex = sheetIndex;
			}
			_SB_JavaScript_Text.Append("objSheet").Append(sheetIndex).Append(".Columns(").Append(col).Append(").Delete").Append(";").Append("\r\n");
 
		}

		public void InsertRow(int row, int sheetIndex)
		{
			_SB_JavaScript_Text.Append("objSheet").Append(sheetIndex).Append(".Rows(").Append(row).Append(").Insert();").Append("\r\n");
		}

		public void DeleteRows(int row, int sheetIndex)
		{
			if (_Used_WorkSheet_MaxIndex < sheetIndex)
			{
				_Used_WorkSheet_MaxIndex = sheetIndex;
			}
			_SB_JavaScript_Text.Append("objSheet").Append(sheetIndex).Append(".Rows(").Append(row).Append(").Delete").Append(";").Append("\r\n");
 
		}
		public string ToExcelString()    
		{
 
			StringBuilder sbJsText = new StringBuilder();          
			sbJsText.Append("<script language='JavaScript'>").Append("\r\n");
			sbJsText.Append("var idTmr = null;").Append("\r\n");
			sbJsText.Append("function openExcel() {").Append("\r\n");

			for( int i = 1; i <= _WorkSheetCount; i++)
			{
				sbJsText.Append("  var objSheet" + i.ToString() + ";\r\n");
			}
			sbJsText.Append("  var objExcel = new ActiveXObject('Excel.Application');").Append("\r\n");
            
			sbJsText.Append("  try {").Append("\r\n");
			sbJsText.Append("    objExcel.DisplayAlerts = false;").Append("\r\n");           
			sbJsText.Append("    var objWorkBook = objExcel.Workbooks.Open('").Append(this._ReportTemplate_Excel_FileName).Append("');").Append("\r\n");            

			for( int i = 1; i <= _OriginalSheetCount; i++)
			{
				sbJsText.Append("    objSheet" + i.ToString() + " = objWorkBook.Worksheets(" + i.ToString() + ");").Append("\r\n");
			}
            
			sbJsText.Append(this._SB_JavaScript_Text.ToString());
			sbJsText.Append("    objWorkBook.Worksheets(1).Activate();").Append("\r\n");
			sbJsText.Append("    objExcel.Visible = true;").Append("\r\n");
 
			sbJsText.Append("  } catch (ex) {").Append("\r\n").Append("\r\n");
			sbJsText.Append("  } finally {").Append("\r\n");
            
			sbJsText.Append("  }").Append("\r\n");
			sbJsText.Append("}").Append("\r\n").Append("\r\n");
            
			sbJsText.Append("openExcel();").Append("\r\n");
			sbJsText.Append("</script> ").Append("\r\n");
 
			return sbJsText.ToString();
		}

	}
}