我有一个包含多列的DataTable。我想从DataTable的第一列中获取一个List<String>
。我该怎么做呢?
发布于 2011-07-08 10:48:08
试试这个:
static void Main(string[] args)
{
var dt = new DataTable
{
Columns = { { "Lastname",typeof(string) }, { "Firstname",typeof(string) } }
};
dt.Rows.Add("Lennon", "John");
dt.Rows.Add("McCartney", "Paul");
dt.Rows.Add("Harrison", "George");
dt.Rows.Add("Starr", "Ringo");
List<string> s = dt.AsEnumerable().Select(x => x[0].ToString()).ToList();
foreach(string e in s)
Console.WriteLine(e);
Console.ReadLine();
}
发布于 2011-07-08 06:30:20
这就是你要的。
DataTable defaultDataTable = defaultDataSet.Tables[0];
var list = (from x in defaultDataTable.AsEnumerable()
where x.Field<string>("column1") == something
select x.Field<string>("column2")).ToList();
如果您需要第一列
var list = (from x in defaultDataTable.AsEnumerable()
where x.Field<string>(1) == something
select x.Field<string>(1)).ToList();
发布于 2011-07-08 06:33:51
这是你需要的吗?
DataTable myDataTable = new DataTable();
List<int> myList = new List<int>();
foreach (DataRow row in myDataTable.Rows)
{
myList.Add((int)row[0]);
}
https://stackoverflow.com/questions/6617804
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