I have a form where a user could **add** `one/more` div of **Address** on `click` of add **button**.

I want if user **select** `options=5` from the dropdown, want to show and hide textbox in that particular address Div.

**Component Code**

```
        get contactFormGroup() {
            return this.form.get('Array') as FormArray;
          }

          ngOnInit() {
            this.form= this.fb.group({
              Array: this.fb.array([])
            });
          }

          createContact(): FormGroup {
            return this.fb.group({
              ABC: [null, Validators.compose([Validators.required])],
              Test: [null, Validators.compose([Validators.required])]
            });
          }

          addContact() {
            this.Group.push(this.createContact());
          }

          showValue(event) {
            const selectedValue = event;
            if (selectedValue === '5') {
                this.showValuetxtbox = true;
            } else {
                this.showValuetxtbox = false;
            }
          }

```