private static void WriteColumnType(ProtoWriterContext context, ProtoDataColumn column)
 {
     ProtoWriter.WriteFieldHeader(ColumnTypeFieldHeader, WireType.Variant, context.Writer);
     ProtoWriter.WriteInt32((int)column.ProtoDataType, context.Writer);
 }
 private static void WriteColumnName(ProtoWriterContext context, ProtoDataColumn column)
 {
     ProtoWriter.WriteFieldHeader(ColumnNameFieldHeader, WireType.String, context.Writer);
     ProtoWriter.WriteString(column.Name, context.Writer);
 }