dataset to List<T>using linq

Question

I have a DataSet and I want to convert the DataSet into List<T>

T - type object

How convert my DataSet? It has 10 columns, with all 10 properties my object has and it's returning over 15000 rows. I want to return that dataset into List<obj> and loop it how do I do that?

Answer 1

This is pretty much the same as the other answers, but introduces strongly-typed columns.

var myData = ds.Tables[0].AsEnumerable().Select(r => new {
    column1 = r.Field<string>("column1"),
    column2 = r.Field<int>("column2"), 
    column3 = r.Field<decimal?>("column3")
});
var list = myData.ToList(); // For if you really need a List and not IEnumerable

Answer 2

I think this should do it.

var output = yourDataSet.Tables[0].Rows.Cast<DataRow>().Select(r => new
{
    Column1 = r["Column1"].ToString(),
    Column2 = r["Column2"].ToString(),
    Column3 = r["Column3"].ToString(),
    Column4 = r["Column4"].ToString(),
    Column5 = r["Column5"].ToString(),
    Column6 = r["Column6"].ToString(),
    Column7 = r["Column7"].ToString(),
    Column8 = r["Column8"].ToString(),
    Column9 = r["Column9"].ToString(),
    Column10 = r["Column10"].ToString()
}).ToList();