1

Src/Core/Wrapper/IWrapper.cs

@@ -14,6 +14,22 @@ namespace BITKit
     }
     public class ValueWrapper<T> : IWrapper<T>
     {
+        public ValueWrapper()
+        {
+            var type = typeof(T);
+            if (type == typeof(string))
+            {
+                _value = string.Empty.As<T>();
+                return;
+            }
+            if(type.IsAbstract || type.IsInterface)return;
+            // 检查类型是否具有公共无参数构造函数
+            var constructor = type.GetConstructor(BindingFlags.Public | BindingFlags.Instance, null, Type.EmptyTypes, null);
+            if (constructor is not null)
+            {
+                _value = Activator.CreateInstance<T>();
+            }
+        }
         public Action<T, T> OnValueChanged { get; set; }
 
         public T Value
@@ -27,7 +43,7 @@ namespace BITKit
             }
         }
 
-        private T _value = typeof(T) == typeof(string) ? string.Empty.As<T>() : Activator.CreateInstance<T>();
+        private T _value;
         public object Obj
         {
             get => Value;