Excel报表

1.Excel报表导入到GridView

 protected void Page_Load(object sender, EventArgs e)
        {
            string path = Server.MapPath("~/Book1.xls");
            OleDbConnection conn = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Extended Properties="Excel 8.0";Data Source=" + path);
            conn.Open();
            OleDbDataAdapter da = new OleDbDataAdapter("select * from [Sheet1$]", conn);
            DataSet ds = new DataSet();
            da.Fill(ds);
            this.GridView1.DataSource = ds;
            this.GridView1.DataBind();


            string path = Server.MapPath("~/Book1.xls");
            this.GridView1.DataSource = GetExcel(path);
            this.GridView1.DataBind();
        }
        public DataSet GetExcel(string filepath)
        {
            OleDbConnection conn = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Extended Properties="Excel 8.0;HDR=YES;IMEX=1";Data Source=" + filepath);
            conn.Open();
            OleDbDataAdapter da = new OleDbDataAdapter("select * from [Sheet1$]", conn);
            DataSet ds = new DataSet();
            da.Fill(ds);
            return ds;

            string sql = string.Empty;
            for (int i = 0; i < ds.Tables[0].Rows.Count; i++)
            {
                sql += string.Format("insert into class values({0},'{1}','{2}','{3}')",ds.Tables[0].Rows[i][0].ToString(),ds.Tables[0].Rows[i][1].ToString(),ds.Tables[0].Rows[i][2].ToString(),ds.Tables[0].Rows[i][3].ToString());
                
            }
           
        }

2.Excel数据导入到数据库

 protected void Page_Load(object sender, EventArgs e)
        {
            string path = Server.MapPath("~/Book1.xls");
            DataSet ds = GetExcel(path);
            string sql = string.Empty;
            for (int i = 0; i < ds.Tables[0].Rows.Count; i++)
            {
                sql += string.Format("insert into class values({0},'{1}','{2}','{3}')", ds.Tables[0].Rows[i][0].ToString(), ds.Tables[0].Rows[i][1].ToString(), ds.Tables[0].Rows[i][2].ToString(), ds.Tables[0].Rows[i][3].ToString());

            }
            SqlHelper.ExecuteNonQuery(sql);
        }

       
        public DataSet GetExcel(string filepath)
        {
            OleDbConnection conn = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Extended Properties="Excel 8.0;HDR=YES;IMEX=1";Data Source=" + filepath);
            conn.Open();
            OleDbDataAdapter da = new OleDbDataAdapter("select * from [Sheet1$]", conn);
            DataSet ds = new DataSet();
            da.Fill(ds);
            return ds;
        }