c# - DataTable select help -

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i trying convert datatable list. please me query?

         var result = datatable1.asenumerable().select(e => {e.field<int>("mid"), e.field<string>("mtx")}).tolist();         javascriptserializer ser = new javascriptserializer();         string json = ser.serialize(result);

thank you..

you need provide names properties inside select call. these names not automatically , unambiguously resolve in particular case. try 

var result = datatable1.asenumerable().select(row => new { mid = row.field<int>("mid"), mtx = row.field<string>("mtx") }); javascriptserializer serializer = new javascriptserializer(); string json = serializer.serialize(result);

those names become part of json result. such 

[{"mid":1,"mtx":"a"},{"mid":2,"mtx":"b"}]

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