//把List<string>转为DataTable List<string> myList = new List<string>(); DataTable dt2 = new DataTable(); dt2.Columns.Add(new DataColumn("sqlString", typeof(string))); //给表dt2添加字段 DataRow dr; foreach (var i in myList) { dr = dt2.Ne…

ConvertJson.cs类 using System; using System.Collections.Generic; using System.Text; using System.Data; using System.Reflection; using System.Collections; using System.Data.Common; namespace DotNet.Utilities { //JSON转换类 public class ConvertJson { #regi…

ConvertJson.cs类 using System; using System.Collections.Generic; using System.Text; using System.Data; using System.Reflection; using System.Collections; using System.Data.Common; namespace DotNet.Utilities { //JSON转换类 public class ConvertJson { #regi…

/// <summary> /// 打开Excel文档并转为DataTable /// </summary> /// <returns></returns> public static DataTable ExcelWorksheetToDataTable() { DataTable dtExecl = new DataTable(); double Ver = GetExcelVer(); ) { MessageBox.Show("The com…

问题还原,如图所示,我们要筛选所有SHDP 为北京翠微KR的数据. 1. 筛选DataTable微软为我们提供了一个方法DataTable.Select(),其用法如下: 1)  Select()——获取所有 System.Data.DataRow 对象的数组:2)  Select(string filterExpression)——按照主键顺序(如果没有主键,则按照添加顺序)获取与筛选条件相匹配的所有 System.Data.DataRow 对象的数组:3)  Select(string fi…

// List<int>转string[] public string[] ListInt2StringArray(List<int> input) { return Array.ConvertAll(input.ToArray(), new Converter<int, string>(a => Convert.ToString(a))); } List<int> arr = new List<int>(); arr.Add(); arr…

C#中对象,字符串,dataTable.DataReader.DataSet,对象集合转换成Json字符串方法. public class ConvertJson { #region 私有方法 /// <summary> /// 过滤特殊字符 /// </summary> /// <param name="s">字符串</param> /// <returns>json字符串</returns> private s…

<script type="text/javascript" src="http://apps.bdimg.com/libs/jquery/1.11.3/jquery.min.js"></script> <script> //string转为obj json 方法一 ============== var str1 = '{"name":"jieke","sex":&quo…

using System; using System.Collections.Generic; using System.Data; using System.Data.OleDb; using System.Linq; using System.Text; namespace ExcelRead { class ExcelHelper { private static string excelConstr; private OleDbConnection conn = null;//操作数据库…

std::string转为 std::wstring std::wstring UTF8_To_UTF16(const std::string& source) { unsigned long len = ::MultiByteToWideChar(CP_UTF8, NULL, source.c_str(), -1, NULL, NULL); //::表示全局函数 不加:: 默认先调用类中的同名函数 if(len == 0) return std::wstring(); wchar_t *buf…