fix: 修复在删除临时层课表的源课表后应用崩溃的问题

LyRin-owo · Sep 30, 2024 · 992aade · 992aade
1 parent 59591f1
commit 992aade
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/ClassIsland.Core/Controls/LessonsControls/ClassInfoMultiConverter.cs b/ClassIsland.Core/Controls/LessonsControls/ClassInfoMultiConverter.cs
@@ -36,10 +36,12 @@ values[2] is not ObservableDictionary<string, Subject> subjects ||
             return null;
         }
 
+        // FIXME: 这些代码应该迁移到其它地方，不适合在此处此课程标记是否属于换课课程
         if (classPlan.OverlaySourceId != null)
         {
-            var overlaySource = IAppHost.GetService<IProfileService>().Profile.ClassPlans[classPlan.OverlaySourceId];
-            if (overlaySource.TimeLayout == classPlan.TimeLayout)
+            if (IAppHost.GetService<IProfileService>().Profile.ClassPlans
+                    .TryGetValue(classPlan.OverlaySourceId, out var overlaySource) 
+                && overlaySource.TimeLayout == classPlan.TimeLayout)
             {
                 classPlan.Classes[subjectIndex].IsChangedClass =
                     overlaySource.Classes[subjectIndex].SubjectId != classPlan.Classes[subjectIndex].SubjectId;