Question

我想将数据表的内容复制到列表

List<FireFighterChiefDetails> ChiefList1 = new List<FireFighterChiefDetails>();

cmd = new SqlCommand("select * from FireFighterDetails");
DataTable dt = new DataTable();
dt = Connect.getDataTable(cmd);

我希望将dt的内容复制到ChiefList1

Answer 1

使用Linq到DataSet：

List<FireFighterChiefDetails> ChiefList1 =
    dt.AsEnumerable()
      .Select(r => new FireFighterChiefDetails {
          Foo = r.Field<string>("Foo"),
          Bar = r.Field<int>("Bar")
          // etc
       }).ToList();

很高兴阅读：Queries in LINQ to DataSet

还考虑使用一些（迷你）ORM（如Dapper）将查询结果自动映射到您的班级：

string sql = "select * from FireFighterDetails";
var ChiefList1 = connection.Query<FireFighterChiefDetails>(sql).ToList();

Answer 2

这样的事情怎么样：

List<object> obj = new List<object>();

foreach (DataRow dr in dt.Rows)
{
   obj.Add(dr);
}

如何将数据表复制到列表

2 个答案: