} var lists =dt.AsEnumerable().Select(t => t.Field<string>("BillNo")).ToList(); string values = "AND CompanyID IN('" +string.Join("','", lists) + "')"; Console.WriteLine("-->"+ values); Console.ReadKey(); 效果图:
List<string> blackIpList = (fromdinds.Tables[0].AsEnumerable()selectd.Field<string>("blackip") ).ToList();
public static DataTable GetDefaultDataTable() { DataTable dt = new DataTable("Default"); DataColumn dc = new DataColumn("UserId", typeof(string)); dt.Columns.Add(dc); dc = new DataColumn("UserName", typeof(int)); dt.Columns.Add(dc); dc = new DataColumn("FirstName", typeof(string...
Bind treeview to dictionary<string,list<string>> Bind two elements that are in different windows Binding + StringFormat doesn't work Binding 1 property to two values Binding a command from ViewModel to an event within a UserControl Binding a DataTable to a DataGrid using two-way mode Binding...
)).ToList(); 方法二、使用foreach循环 List<Dictionary<string, object>> dict = new List<Dictionary<string, object>>(); foreach (DataRow dr in dt.Rows) { Dictionary<string, object> dic = new Dictionary<string, object>(); foreach (DataColumn dc in dt.Columns) ...
// 创建一个DataTable对象DataTabledataTable=newDataTable();// 将DataTable转换为List<DataRow>List<DataRow>dataList=dataTable.AsEnumerable().ToList(); 2. DataTable转Dictionary // 创建一个DataTable对象DataTabledataTable=newDataTable();// 将DataTable转换为DictionaryDictionary<string,object>dictionary...
ToList().ForEach(x => { //这里用的是一个string 数组 也可以用DataRow根据个人需要用 string[] array = new string[dt.Columns.Count]; //array[1]就是存名字的 array[1] = x.Key; //从第二列开始遍历 for (int i = 2; i < dt.Columns.Count; i++) { // array[0] 就是 staff_id ...
DataTable to List <T>转换 Datatable对索引列返回[Object Object] 将List<List<object>>转换为List<List<string>> 将List<object>转换为List<List<int>> Java -向List<List<Object>>添加List<Double> js遍历list object ArrayList vs List <object> 如何将List<Object>转换为List<Object.String>,即List<Stri...
public List<dynamic> Select(int id){string sql = @"select userName,userPassword,sex,telephoneNumber,balance,loginStatus,type from T_UserInfo where userId=@id";SqlParameter[] param = { new SqlParameter("@id", id) };DataTable dt = helper.SelectExecuteNonQuery(sql, param, CommandType.Text);for...
(column);// Create second column.column =newDataColumn(); column.DataType = System.Type.GetType("System.String"); column.ColumnName ="ParentItem"; column.AutoIncrement =false; column.Caption ="ParentItem"; column.ReadOnly =false; column.Unique =false;// Add the column to the table.table...