myworkout：属性不存在

类型有问题。一切都很好，除了这行代码：myworkout：属性不存在

"this.workoutService.deleteWorkout(workoutId).subscribe(data => { 
     this.result = data;"

具体来说，“workoutService” ...它说：“物业‘workoutService’不上键入‘WorkoutDetailsPage’存在。”

从这个代码（WorkoutDetailsPage）：

import { Component } from '@angular/core'; 
import { NavController, NavParams } from 'ionic-angular'; 
import { WorkoutService } from '../../app/services/workout.service'; 
import { WorkoutsPage } from '../workouts/workouts' 

@Component({ 
selector: 'workout-details', 
templateUrl: 'workout-details.html' 
}) 
export class WorkoutDetailsPage { 
public workout: any; 
public result: any; 

constructor(public navCtrl: NavController, public params:NavParams, workoutService:WorkoutService) { 
    this.workout = params.get('workout'); 
} 

deleteWorkout(workoutId){ 
    this.workoutService.deleteWorkout(workoutId).subscribe(data => { 
     this.result = data; 
    }); 

    this.navCtrl.push(WorkoutsPage); 
    } 
}

结果是这样的： enter image description here

来源

2017-03-07 Amccur

以供将来参考，它可能是最好不要使用图片代码片断。只需将代码粘贴到StackOverflow编辑器中，突出显示它，然后单击代码按钮。它使得它对帮助你的人更具可读性，我们也可以从片段中复制来给出我们的答案。 – spectacularbob

任何参数，以不具有访问修饰符的构造将不会被添加作为一个类的成员。只需在构造函数中添加private或public你的锻炼服务参数：

constructor(public navCtrl: NavController, public params: NavParams, private workoutService: WorkoutService)

来源

2017-03-07 17:39:38 spectacularbob

myworkout：属性不存在

回答

相关问题