Error when using setControl or patchValue in angular form array

Question

Please assist, I have nested form array, se below :

  this.form = this.formBuilder.group({
        projectTitle: [\'\', [Validators.required, Validators.maxLengt         


        

Answer 1

Try something like this:

this.form = this.formBuilder.group({
  projectTitle: ['', [Validators.required, Validators.maxLength(300)]],
  projectDescription: ['', [Validators.required, Validators.maxLength(300)]],
  funding: this.formBuilder.array([this._buildFundingItems({ items: null, amount: null })]),
});

 _buildFundingItems(data): FormGroup {
  if (!data) {
      data = {
        items: null,
        amount: null
      }
  } 
  return this.formBuilder.group({
        items: [data.items, [Validators.required, Validators.pattern(this.regexValidation.shortWordRegex)]],
      amount: [data.amount, [Validators.required, Validators.pattern(this.regexValidation.amountTypeRegex)]],
     })

}