linq - 动态地将类型传递给方法<T>

Question

我有一个方法，它根据我传入参数的某种类型检索一些数据，如下所示:

    protected void FillList<TEntity>()
    {
        doWorkForTEntity();
    }

我需要动态调用此方法:

            Type[] entities = System.Reflection.Assembly.GetAssembly(typeof(User)).GetTypes();
            Type currentEntity = (from entity in entities
                                  where entity.Name.Equals(this.targetEntity)
                                  select entity).FirstOrDefault();
            FillList<currentEntity>();

我收到此错误:

The type or namespace name 'currentEntity' could not be found (are you missing a using directive or an assembly reference?)

我尝试过中间对象类型，但没有成功

请问有什么想法吗？

Answer 1

由于编译时没有有关实体类型的信息，因此需要通过反射构造并调用适当的方法:

Type[] entities = System.Reflection.Assembly.GetAssembly(typeof(User)).GetTypes();
Type currentEntity = (from entity in entities
                      where entity.Name.Equals(this.targetEntity)
                      select entity).FirstOrDefault();     
var method = this.GetType().GetMethod("FillList",  BindingFlags.Instance | BindingFlags.NonPublic)
                           .MakeGenericMethod(currentEntity);
method.Invoke(this, new object[0]);