how can I get cursor data with calling stored procedure in npgsql

Question

I have looked into materials in www.npgsql.org, but couldn\'t find how to solve my problem...

Table, PostgreSQL

[City], [State]
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Answer 1

I have following working code with Npgsql 2.2.7 version:

 private static DataSet ExecuteFunction(string functionName)
    {
        DataSet ds = new DataSet();

        var conn = new NpgsqlConnection("replace with connection string");
        conn.Open();
        var tran = conn.BeginTransaction();
        var cmd = new NpgsqlCommand(functionName, conn);
        cmd.CommandType = CommandType.StoredProcedure;

        NpgsqlDataAdapter da = new NpgsqlDataAdapter(cmd);
        da.Fill(ds);

        //foreach (DataRow r in ds.Tables[0].Rows)
        //{
        //    Console.WriteLine("{0}", r[0]);
        //}

        tran.Commit();
        conn.Close();
        return ds;
    }