反射賦值

目前例子為NPOI?Excel導入?入庫時調用

 var file = file1.PostedFile.InputStream;var fileExt = System.IO.Path.GetExtension(file1.FileName);IWorkbook workbook;if (fileExt == ".xlsx")workbook = new XSSFWorkbook(file);elseworkbook = new HSSFWorkbook(file);DB.DBContext db = new DB.DBContext();List<DB.Entity.dt_orders> list_orders = new List<DB.Entity.dt_orders>();#region 訂單記錄var sheet_order = workbook.GetSheet("訂單記錄");if (sheet_order != null){List<string> list_hread = new List<string>();//獲取Excel的最大行數int rowsCount = sheet_order.PhysicalNumberOfRows;int colsCount = sheet_order.GetRow(1).PhysicalNumberOfCells;//獲取字段for (int i = 0; i < colsCount; i++){list_hread.Add(sheet_order.GetRow(1).GetCell(i).ToString());}//數據填充for (int x = 2; x < rowsCount; x++){var model_order = new DB.Entity.dt_orders();var row = sheet_order.GetRow(x);SetValue(model_order, row, list_hread);list_orders.Add(model_order);}//過濾掉已有的訂單var list_ordersno = list_orders.Select(d => d.order_no).ToList();var dt_list_ordersno = db.dt_orders.Where(d => list_ordersno.Contains(d.order_no)).Select(d => d.order_no).ToList();list_orders.RemoveAll(d => dt_list_ordersno.Contains(d.order_no));}#endregion

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/// <summary>/// 反射賦值/// </summary>/// <typeparam name="T"></typeparam>/// <param name="model"></param>/// <param name="row"></param>/// <param name="list_hread"></param>private void SetValue<T>(T model, IRow row, List<string> list_hread){System.Reflection.PropertyInfo[] myPropertyInfo = model.GetType().GetProperties(System.Reflection.BindingFlags.Public | System.Reflection.BindingFlags.Instance);for (int i = 0; i < list_hread.Count; i++){var hread = list_hread[i];var pi = model.GetType().GetProperty(hread);               try{var value = Convert.ChangeType((object)row.GetCell(i).ToString(), (Nullable.GetUnderlyingType(pi.PropertyType) ?? pi.PropertyType));pi.SetValue(model, value, null);}catch (Exception ex){pi.SetValue(model, null, null);}}}

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