小编Ere*_*rti的帖子

我正在努力了解代表团所以我只是写了一个小试试项目; 我有D班:

class D
{
    private static void Func1(Object o)
    {
        if (!(o is string)) return;
        string s = o as string;
        Console.WriteLine("Func1 going to sleep");
        Thread.Sleep(1500);
        Console.WriteLine("Func1: " + s);
    }
}

并在主要使用中:

 MethodInfo inf = typeof(D).GetMethod("Func1", BindingFlags.NonPublic | BindingFlags.Static);
 Delegate d = Delegate.CreateDelegate(typeof(D), inf);

方法info获取正确的信息,但CreateDelegate方法抛出异常,例如,该类型必须从Delegate派生.

我怎么解决这个问题？

我的代码在Angular7中，使用@ ngrx / store7，有时我会得到未定义状态（仅针对特定状态）

它始终是“历史”状态。

我的应用程式状态：

export interface IAppState {
  router?: RouterReducerState,
  delivery: IDeliveryState,
  events: IEventsState,
  families: IFamiliesState,
  googleDrive: IGoogleDriveState,
  spinner: ISpinnerState,
  user: IUserState,
  volunteerConstraints: IVolunteerConstraintsState,
  volunteers: IVolunteersState,
  history: IHistoryState
}

export const initialAppState: IAppState = {
  delivery: initialDeliveryState,
  events: initialEventsState,
  families: initialFamiliesState,
  googleDrive: initialGoogleDriveState,
  spinner: initialSpinnerState,
  user: initialUserState,
  volunteerConstraints: initialVolunteerConstraintsState,
  volunteers: initialVolunteersState,
  history: initialHistoryState
};

export function getInitialState(): IAppState {
  return initialAppState;
}

我的历史记录状态：

export interface IHistoryState {
  familyHistory: Array<FamilyHistoryModel>;
  familyHistoryPending: boolean;

  routeHistory: Array<RouteHistoryModel>;
  routeHistoryPending: boolean;

  deliveryHistory: Array<DeliveryHistoryChartModel>;

  volunteerRating: …