public ActionResult <ExportResult> Export(ExportLayout layout)
        {
            ExportImportService <T> tempService = new ExportImportService <T>(_context);
            var export = tempService.GetExportResult(layout);

            return(Ok(export));
        }
        public void GetNullTest()
        {
            InitData("GetNullTest");
            var exportResult = _exportService.GetExportResult(new ExportLayout()
            {
                EntityPrimaryValue = "542c31f0-35e3-4a7d-a939-803f18f94668"                 // Wrong ID
            });

            Assert.Null(exportResult.EntityData);
        }