Angular Reactive FormGroup 值更改不会在可观察到的情况下发出更改

Question

我已经声明了一个简单的表单，并为其分配了一个 observable，该 observable 被映射为返回一个对象，我在返回之前将对象记录在控制台中，但 valuechanges 永远不会触发。

comPlanForm= new FormGroup({
    commissionPlanType: new FormControl('', [Validators.required]),
    commissionPlanName: new FormControl('', [Validators.required, Validators.maxLength(150)]),
    commissionPlanDescription: new FormControl('', [Validators.maxLength(150)]),
    payoutSchedule: new FormControl('', [Validators.required]),
    broker: new FormControl('', [Validators.required]),
    trigger: new FormControl('', [Validators.required]),
     waitUntilDays: new FormControl('', [Validators.required]),
    startDate: new FormControl('', [Validators.required]),
    endDate: new FormControl('')});

comPlanForm$ = this.comPlanForm.valueChanges.pipe(
    map(value => { 
        const plan= new CommissionPlanRequest(null,null,value.commissionPlanName, value.commissionPlanDescription,
        value.commissionPlanType, value.startDate, value.endDate, value.payoutSchedule, value.broker, null,
        new PlanTrigger(null,value.waitUntilDays,value.trigger),[]) 
        return plan;
    }),
    tap(x=>console.log(x))
);

我没有 ngOnInit，我也尝试将 console.log 放入 map 函数本身没有运气，关于为什么我的值更改没有触发的任何想法？

Answer 1

 this.comPlanForm.valueChanges.subscribe(value =>
  { 
    const plan= new CommissionPlanRequest(null,null,value.commissionPlanName, value.commissionPlanDescription,
    value.commissionPlanType, value.startDate, value.endDate, value.payoutSchedule, value.broker, null,
    new PlanTrigger(null,value.waitUntilDays,value.trigger),[]) 
    this.comPlanForm$ = plan;
}

);