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Npgsql datatable serializer
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private void serializeDataTable(NpgsqlCopySerializer serializer, DataTable datatable, string[] columnNamesInFixedOrder) | |
{ | |
var serializeRow = new List<Action<DataRow>>(); | |
var serializeByType = new Dictionary<Type, Action<object>>(); | |
serializeByType[typeof (bool)] = (o => { if (o == null) serializer.AddNull(); else serializer.AddBool((bool)o); }); | |
serializeByType[typeof (string)] = (o => { if (o == null) serializer.AddNull(); else serializer.AddString((string)o); }); | |
serializeByType[typeof (DateTime)] = (o => { if (o == null) serializer.AddNull(); else serializer.AddDateTime((DateTime)o); }); | |
serializeByType[typeof(byte)] = (o => { if (o == null) serializer.AddNull(); else serializer.AddInt32((byte)o); }); | |
serializeByType[typeof (int)] = (o => { if (o == null) serializer.AddNull(); else serializer.AddInt32((int)o); }); | |
serializeByType[typeof (long)] = (o => { if (o == null) serializer.AddNull(); else serializer.AddInt64((long)o); }); | |
serializeByType[typeof (double)] = (o => { if (o == null) serializer.AddNull(); else serializer.AddNumber((double)o); }); | |
serializeByType[typeof (decimal)] = (o => { if (o == null) serializer.AddNull(); else serializer.AddNumber((double)(decimal)o); }); | |
serializeByType[typeof (float)] = (o => { if (o == null) serializer.AddNull(); else serializer.AddNumber((double)(float)o); }); | |
foreach (var column in columnNamesInFixedOrder) | |
{ | |
var c = column; | |
var type = datatable.Columns[c].DataType; | |
serializeRow.Add(row => serializeByType[type](row.IsNull(c) ? null : row[c])); | |
} | |
foreach (DataRow row in datatable.Rows) | |
{ | |
serializeRow.ForEach(action => action(row)); | |
serializer.EndRow(); | |
serializer.Flush(); | |
} | |
} |
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