排序帮助类（包括对string[],int[],datatable,T[]进行排序）

using System;using System.Collections.Generic;using System.Text;using System.Reflection;using System.Data;namespace Zhuyi.Utility{ /// <summary> /// 排序帮助类（包括对string[],int[],datatable,T[]进行排序） /// </summary> public class SortUtil { /// <summary> /// 对int数组进行排序 /// </summary> /// <param name="list">int数组</param> /// <param name="asc">是否按升序排列</param> public static void SortInt(int[] list, bool asc) { int obj; int j, k = 1; bool done = false; int len = list.Length; while (k < len && !done) { done = true; for (j = 0; j < len - k; j++) { int b = list[j].CompareTo(list[j + 1]); if ((asc && b > 0) || (!asc && b < 0)) { done = false; obj = list[j]; list[j] = list[j + 1]; list[j + 1] = obj; } } k++; } } /// <summary> /// 对string数组进行排序 /// </summary> /// <param name="list">string数组</param> /// <param name="asc">是否按升序排列</param> public static void SortString(string[] list, bool asc) { string obj; int j, k = 1; bool done = false; int len = list.Length; while (k < len && !done) { done = true; for (j = 0; j < len - k; j++) { int b = list[j].CompareTo(list[j + 1]); if ((asc && b > 0) || (!asc && b < 0)) { done = false; obj = list[j]; list[j] = list[j + 1]; list[j + 1] = obj; } } k++; } } /// <summary> /// 对datatable进行排序，返回排序后的datatable /// </summary> /// <param name="dt">要排序的datatable</param> /// <param name="order">排序字段</param> /// <param name="asc">是否升序</param> /// <returns></returns> static DataTable SortDataTable(DataTable dt, string order, bool asc) { DataView view = dt.DefaultView; view.Sort = string.Format("{0} {1}", order, (asc ? "asc" : "desc")); return view.ToTable(); /* DataRow[] rows = dt.Select("", order + " " + (asc ? "asc" : "desc")); DataTable dt2 = dt.Clone(); foreach (DataRow row in rows) dt2.Rows.Add(row.ItemArray); dt.Clear(); return dt2; */ } /// <summary> /// 对实体类进行排序 /// </summary> /// <typeparam name="T">实体类型，如：User</typeparam> /// <param name="list">实体类的数组</param> /// <param name="order">排序字段（必须为属性）</param> /// <param name="asc">是否按正序排序</param> public static void Sort<T>(object[] list, string order, bool asc) { Type type = typeof(T); PropertyInfo[] pros = type.GetProperties(); PropertyInfo pro = pros[0]; order = order.ToLower(); for (int i = 0; i < pros.Length; i++) { if (pros[i].Name.ToLower().Equals(order)) { pro = pros[i]; break; } } object obj; int j, k = 1; bool done = false; int len = list.Length; while (k < len && !done) { done = true; for (j = 0; j < len - k; j++) { int b = pro.GetValue(list[j], null).ToString().CompareTo(pro.GetValue(list[j + 1], null).ToString()); if ((asc && b > 0) || (!asc && b < 0)) { done = false; obj = list[j]; list[j] = list[j + 1]; list[j + 1] = obj; } } k++; } } }}

 

 

Zhuyi.Utility:

包括缓存操作、配置文件操作、cookie操作、日期时间操作、文本文件操作、HTML源码解析、图片裁剪/缩放、常用正则验证、加密/解密、http请求、xml读写、对数组的排序。

 

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