ViewModels/BubblePointViewModel.cs

@@ -42,7 +42,7 @@ namespace MembranePoreTester.ViewModels
             });
         }
 
-        public List<TestLiquid> Liquids => TestLiquid.Predefined;
+        public IReadOnlyList<TestLiquid> Liquids => TestLiquid.Predefined;
         public List<string> PressureUnits => new() { "Pa", "cmHg", "psi" };
         public List<string> MembraneTypes => new() { "平板膜", "中空纤维膜" };
 

ViewModels/PoreDistributionViewModel.cs

@@ -243,11 +243,22 @@ namespace MembranePoreTester.ViewModels
                 {
                     // 当 Record 替换时（例如从数据库加载），重新订阅其 DataPoints 集合
                     HookDataPointsCollection(_record?.DataPoints);
+
+                    // 同步液体选择
+                    if (_record?.Liquid != null)
+                    {
+                        var matchedLiquid = Liquids.FirstOrDefault(l => l.Name == _record.Liquid.Name);
+                        SelectedLiquid = matchedLiquid ?? _record.Liquid;
+                    }
+                    else
+                    {
+                        SelectedLiquid = Liquids.FirstOrDefault();
+                    }
                 }
             }
         }
 
-        public List<TestLiquid> Liquids => TestLiquid.Predefined;
+        public IReadOnlyList<TestLiquid> Liquids => TestLiquid.Predefined;
         public List<string> PressureUnits => new() { "Pa", "cmHg", "psi" };
         public List<string> MembraneTypes => new() { "平板膜", "中空纤维膜" };
 
@@ -944,6 +955,20 @@ namespace MembranePoreTester.ViewModels
                 });
             }
 
+            // 同步液体选择
+            if (Record.Liquid != null)
+            {
+                var matchedLiquid = Liquids.FirstOrDefault(l => l.Name == Record.Liquid.Name);
+                SelectedLiquid = matchedLiquid ?? Record.Liquid;
+            }
+            else
+            {
+                SelectedLiquid = Liquids.FirstOrDefault();
+            }
+
+
+
+
             // 重新计算平均孔径和分布（触发计算命令）
             Calculate();
         }