创建一个 class 来调用实体 C#

Question

    public INSERT_RESULT INSERT_NEW_RECORD(string FirstName, string LastName, string MiddleIntial )
    {
        decimal? InsertedUID;
        var nResult = new ObjectParameter("nResult", typeof(decimal));
        INSERT_RESULT insertResult = new INSERT_RESULT();

        try
        {
            using (var myDBEntities = dbEntities.GetNewEntities())
            {

                InsertedUID = myDBEntities.INSERT_LOOKUP(0, LastName, FirstName, MiddleIntial, dbEntities.global_USER_LOGGED_IN,  nResult).FirstOrDefault();


            }
            insertResult.WasInserted = true;
            insertResult.InsertedUID = InsertedUID ?? 0;
            insertResult.ExceptionText = "NONE";
        }

        catch (Exception ex)
        {
            insertResult.WasInserted = false;
            insertResult.InsertedUID = 0;
            insertResult.ExceptionText = ex.InnerException.ToString();

        }

        return insertResult;
    }



public List<GET_ITEMS_Result> GET_ITEMS(decimal itemUID)
    {
        var result = new List<GET_ITEMS_Result>();
        using (var myDBEntities = dbEntities.GetNewEntities())
        {
            result = myDBEntities.GET_ITEMS(itemUID).ToList();
        }
        return result;
    }

以上是可以从 myDBEntities 调用的数百个方法中的两个示例。这是我的目标。我想创建一个 class 允许一个人传入方法和参数的名称并返回指定的任何 return 类型，而不必一遍又一遍地编写上述类型的代码.有什么建议么？？

Answer 1

您可以尝试使用反射。查看下面的 InvokeMethodWithParams 方法。

  class Program
  {
    static void Main(string[] args)
    {
      var instance = new AClassWithHundredsOfMethods();
      var result = InvokeMethodWithParams<AClassWithHundredsOfMethods>(instance, "INSERT_NEW_RECORD", "MyFirstName", "MyLastName", "MyMiddleInitial");
      Console.WriteLine(result);
    }


    static object InvokeMethodWithParams<T>(object instance, string methodName, params object[] parameters) where T : class
    {
      return  typeof(T).GetMethod(methodName).Invoke(instance, parameters);
    }
  }

创建一个 class 来调用实体 C#

Creating a class to call entities C#

.net

c#

entity-framework-5