Posted on: 6/8/2015 11:15:20 AM | Views : 645

hi all
iam trying to retrieve data from database in json format
but data is not displaying in json
please correct my code
my code is
project name is: WCFdatabase
service.cs
private static Npgsql.NpgsqlConnection conn;
public DataSet SelectUserDetails() {
string ConnStr = ConfigurationManager.ConnectionStrings["myConn"].ConnectionString; conn = new Npgsql.NpgsqlConnection(ConnStr); conn.Open(); Npgsql.NpgsqlCommand cmd = new Npgsql.NpgsqlCommand("Select district from district", conn); Npgsql.NpgsqlDataAdapter sda = new Npgsql.NpgsqlDataAdapter(cmd); DataSet ds = new DataSet(); sda.Fill(ds); cmd.ExecuteNonQuery(); conn.Close(); return ds;
}
IService.cs
public interface IService {

[OperationContract] [WebInvoke(Method = "GET", UriTemp ...

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