1.Object reference not set to an instance of an object. 未将对象引用(引用)到对象的实例,说白了就是有个对象为null,但是你在用它点出来的各种东西. 2.An entity object cannot be referenced by multiple instances of IEntityChangeTracker. 一个实体对象不能由多个IEntityChangeTracker实例引用.首先参见MSDN中对于Entity Frame…
1.Object reference not set to an instance of an object. 未将对象引用(引用)到对象的实例,说白了就是有个对象为null,但是你在用它点出来的各种东西. 2.An entity object cannot be referenced by multiple instances of IEntityChangeTracker. 一个实体对象不能由多个IEntityChangeTracker实例引用.首先参见MSDN中对于Entity Frame…