C#导数带格式EXCEL

 

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using Excel=Microsoft.Office.Interop.Excel;
using System.Reflection;

namespace WindowsApplication2
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {

            Excel.Application app = new Microsoft.Office.Interop.Excel.Application();
            if (app == null)
                return;
            app.Visible = false;
            app.UserControl = true;
            Excel.Workbooks workbooks = app.Workbooks;
            Excel._Workbook workbook = workbooks.Add(@"C:\Model.xls");//
            Excel.Sheets sheets = workbook.Worksheets;
            Excel._Worksheet worksheet = (Excel._Worksheet)sheets.get_Item(1);
            if (worksheet == null)
                return;
            DataSet ds = SqlHelper.ExecuteDataSet(SqlHelper.ConnectionStringLocalTransaction, "select * from [Sheet1$]");
            DataSet ds2 = SqlHelper.ExecuteDataSet(SqlHelper.ConnectionStringLocalTransaction, "select 支行,sum(交易金额) from [sheet1$] group by 支行");
            int j = 0;
            int i = 0;
            double total = 0;
            if (ds2.Tables[0].Rows.Count > 0)
            {
                DataRow []ds3;
                for(i=0;i<ds2.Tables[0].Rows.Count;i++)
                {
                    ds3=ds.Tables[0].Select("支行='"+ds2.Tables[0].Rows[i][0]+"'");
                    for (int k=0; k < ds3.Length ; k++)
                    {
                        worksheet.Cells[2 + j, 1] = ds3[k]["商户编号"].ToString();
                        worksheet.Cells[2 + j, 2] = ds3[k]["交易金额"].ToString();
                        worksheet.Cells[2 + j, 3] = ds3[k]["支行"].ToString();
                        worksheet.Cells[2 + j, 4] = ds3[k]["奖励标准"].ToString();
                        worksheet.Cells[2 + j, 5] = ds3[k]["备注"].ToString();
                        j++;
                    }
                    //汇总信息
                    worksheet.Cells[2 + j, 2] = ds2.Tables[0].Rows[i][1].ToString() ;
                    total += Convert.ToDouble(ds2.Tables[0].Rows[i][1]);
                    worksheet.Cells[2 + j, 3] = ds2.Tables[0].Rows[i][0].ToString() + " 汇总";
                    //下一次填充开始位置
                    j++;
                }
                worksheet.Cells[2 + j, 2] = total;
                worksheet.Cells[2 + j, 3] = "总计";
                
            }
            workbook.SaveAs("C:\\aa.xls", Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Excel.XlSaveAsAccessMode.xlNoChange, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value);
            app.Quit();
        }


    }
}