diff --git a/IRaCIS.Core.Application/Service/Reading/ReadingImageTask/ReadingImageTaskService.cs b/IRaCIS.Core.Application/Service/Reading/ReadingImageTask/ReadingImageTaskService.cs
index 027d28283..d2b6daaee 100644
--- a/IRaCIS.Core.Application/Service/Reading/ReadingImageTask/ReadingImageTaskService.cs
+++ b/IRaCIS.Core.Application/Service/Reading/ReadingImageTask/ReadingImageTaskService.cs
@@ -1350,9 +1350,9 @@ namespace IRaCIS.Core.Application.Service
             }
 
 
-            var isHaveBindingQuestion=(await _readingQuestionTrialRepository.AnyAsync(x=>x.ReadingQuestionCriterionTrialId==taskInfo.TrialReadingCriterionId&&x.ImageToolAttribute.IsNotNullOrEmpty()))
+            var isHaveBindingQuestion=(await _readingQuestionTrialRepository.AnyAsync(x=>x.ReadingQuestionCriterionTrialId==taskInfo.TrialReadingCriterionId&&x.ImageToolAttribute!=string.Empty))
 
-                || (await _readingTableQuestionTrialRepository.AnyAsync(x=>x.ReadingQuestionTrial.ReadingQuestionCriterionTrialId == taskInfo.TrialReadingCriterionId && x.ImageToolAttribute.IsNotNullOrEmpty()));
+                || (await _readingTableQuestionTrialRepository.AnyAsync(x=>x.ReadingQuestionTrial.ReadingQuestionCriterionTrialId == taskInfo.TrialReadingCriterionId && x.ImageToolAttribute != string.Empty));
 
             return (await GetReadingTableQuestion(
                 new GetReadingTableQuestionOrAnswerInDto()