c#扩展函数
分页
public static class IEnumerableExt { public static (IEnumerable<T> dataAfterPaging, Pageinfo pageinfo) Paging<T>(this IEnumerable<T> list, int PageIndex, int PageSize) { return (list.Skip(PageSize * (PageIndex - 1)).Take(PageSize), new Pageinfo() { PageIndex = PageIndex, PageSize = PageSize, TotalRecords = list.Count(), TotalPages = (list.Count() + PageSize - 1) / PageSize } ); } }
对象的相同属性赋值
public static class ObjectExt { // <summary> /// 给对象赋值的方法(不赋地址),含过滤 /// </summary> /// <typeparam name="T"><peparam> /// <param name="left">=号左边</param> /// <param name="right">=号右边</param> /// <param name="id">过滤条件</param> public static void Assignment<T, V>(this Object value, T left, V right, string id = null) { Type rightType = right.GetType(); Type leftType = left.GetType(); List<PropertyInfo> pList = rightType.GetProperties(BindingFlags.DeclaredOnly | BindingFlags.Public | BindingFlags.Instance).ToList(); for (int i = 0; i < pList.Count; i++) { //根据属性名获得指定的属性对象 PropertyInfo leftPropertyInfo = leftType.GetProperty(pList[i].Name); //设置属性的值 if (id != null) { if (pList[i].Name != id) { leftPropertyInfo.SetValue(left, pList[i].GetValue(right, null), null); } } else { leftPropertyInfo.SetValue(left, pList[i].GetValue(right, null), null); } } } }
【推荐】编程新体验,更懂你的AI,立即体验豆包MarsCode编程助手
【推荐】凌霞软件回馈社区,博客园 & 1Panel & Halo 联合会员上线
【推荐】抖音旗下AI助手豆包,你的智能百科全书,全免费不限次数
【推荐】轻量又高性能的 SSH 工具 IShell:AI 加持,快人一步