title: How to iterate/display form array in angular2 reactive forms?
body: <p>How to populate this JSON in my EditForm. I have EditForm, that I want to display my data inside Products, my ws get me this JSON. My data outside Products I can display in html. What is the problem?</p>
  
  <p>This is my Json</p>
  
  <pre><code>{
     "StatusCode": 0,
  "StatusMessage": "OK",
  "StatusDescription": [
      {
          "Products": [
              {
                  "p_product_id": "11E8218A54B30C89AE8800FF76874A59",
                  "p_product_type_id": "11E7FC041F467AD4B09D00FF76874A59",
                  "p_line_num": 233,
                  "p_description": "test",
                  "p_quantity": 4,
                  "p_unit_price": 50,
                  "p_subtotal": 120,
                  "p_contract_filename": "567897"
              }
          ],
          "sale_item_id": "11E8219D916A69F6AE8800FF76874A59",
          "sale_id": "11E8218B9BA4F278AE8800FF76874A59",
          "client_id": "11E8218A57B28B0AAE8800FF76874A59",
          "salesman_id": "31000000000000000000000000000000",
          "sale_date": "2018-03-06T22:09:43.000Z",
          "notes": "testing",
          "subtotal": 80,
          "total": 50,
          "invoice_number": "28282",
          "invoice_date": "2018-03-06T21:57:41.000Z",
          "amount_paid": 32,
          "lastmoduserid": "31000000000000000000000000000000",
          "lasttodtttm": "2018-03-06T22:09:43.000Z"
      }
  ]
  </code></pre>
  
  <p>}</p>
  
  <p>My ts code:</p>
  
  <pre><code> this.sale.products.forEach(x =&gt; {
                (this.editSaleForm.get('products') as FormArray).push(new FormControl(x.products))
              })
  </code></pre>
  
  <p>html code:</p>
  
  <pre><code> &lt;tr class="group" style="cursor: pointer" *ngFor="let sale of editSaleForm.get('products').value; let i = index"&gt;
      &lt;td &gt;{{p_product_type_id}}&lt;/td&gt;
      &lt;td&gt;{{p_product_id}}&lt;/td&gt;
      &lt;td&gt;{{p_unit_price}}&lt;/td&gt;
      &lt;td&gt;{{p_quantity}} &lt;/td&gt;
    &lt;/tr&gt;
  </code></pre>