使用angular2的嵌套表单控件中的patch值 [英] patch Value in a nested form control using angular2

问题描述

我需要在FormBuiler的嵌套控件中设置一个值，并且模型如下：

I need to set a value in a nested control in a FormBuiler and the model is the following:

this.addAccForm = this.fb.group({
      accid: ['', Validators.required],
      status: '',
      cyc: this.fb.array([
        this.initCyc(),
      ])
    })

initCyc() {
      return this.fb.group({
        cycid: ['', Validators.required],
        name: ['', Validators.required],
        description: ['', Validators.required],
        status: ['', Validators.required],
        det: this.fb.group({
            dcycid: ['', Validators.required],
            status: ['', Validators.required]
        })
      })

我需要设置cycyd和dcycid值，但我坚持，我尝试使用以下行，但无济于事：

I need to set a value cycid and also dcycid but I m stuck to it, I've tried to use the following line , but it does NOT help :

this.addAccForm.patchValue({cyc: { [0]: {cycid: 1234567 }}});

//

this.addAccForm.patchValue({cyc: { [0]: { det : {dcycid: 9876543}}}});

是否知道应该如何？

推荐答案

这是我解决问题的方法：

Here is how I solved my issue :

(this.addAccForm.controls['cyc'].at(0)).patchValue({cycid: 12345 });  
//
(this.addAccForm.controls['cyc'].at(0)).controls['det'].at(0).patchValue({dcycid: 9876543});

谢谢

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