如何在angular 2引導程序模式中使用* ngFor

Question

我試圖在angular 2中使用* ngFor將數據綁定到我的模態，但是當我的組件數據可用時，無法查看模態中的任何數據。

modal.component.html

 <div class="modal modalscroll" tabindex="-1" role="dialog"  [ngStyle]="{'display':addSplitBilling}">
    <div class="modal-dialog splitBillingModal">
    <form>
      <div class="modal-content">
        <div class="modal-header">
          <button type="button" class="close" data-dismiss="modal" aria-hidden="true" (click) = "clearSplitBilling()">×</button>
          <h4 class="modal-title">Split Billing</h4>
        </div>
        <div class="container"></div>
        <div class="modal-body">
          <table>
                <tbody>
                    <tr *ngFor="let d of data.dupStmtAddresses; let i = index">
                          <td>{{d.addressee}}</td>
                          <td>{{d.splitPercent}}</td>
                      </tr>
                </tbody>
            </table>
        </div>
        <div class="modal-footer">
        </div>

      </div>
    </form>
    </div>
  </div>

modal.component.ts

export class DupStatementsComponent implements OnInit {
    addSplitBilling = 'none';
    data: any;

    ngOnInit() {
        this.getData();
    }


    getData(){
        this.duplicateStatementsProvider.getDuplicateStatements()
        .subscribe(
            data => {
                this.data = JSON.parse(data['_body']);
            },
            error => {
            }
        );
    }


    splitBilling(){
        console.log(this.data.dupStmtAddresses);
        this.addSplitBilling = 'block';
    }
}

在控制台中，我可以看到數據可用，但在模式下無法查看任何數據。

在數據中，我從Web服務獲得此響應->

{"createdDate":"2017-12-04T17:04:00.174+05:30","id":1,"dupStmtAddresses":[{"createdDate":null,"id":1,"addressee":"a","address1":"a","address2":"a","address3":"a","address4":"a","email":"a","splitPercent":null,"new":false},{"createdDate":null,"id":2,"addressee":"b","address1":"b","address2":"b","address3":"b","address4":"b","email":"b","splitPercent":null,"new":false},{"createdDate":null,"id":3,"addressee":"c","address1":"c","address2":"c","address3":"c","address4":"c","email":"c","splitPercent":null,"new":false}],"enableSplitBilling":true,"new":false}

我不知道為什么它不起作用。

Answer 1

從上面的描述和評論中可以得出的結論是，在創建模態模板之前，該服務尚未響應。 我不確定是否可以使用，但請您嘗試：

代替直接在模式中使用數據，可以使用初始化為null / empty字符串的新變量modalContent。 單擊按鈕以打開模態時，將數據分配給modalContent變量，並在ngFor循環中使用它。

export class DupStatementsComponent implements OnInit {
    modalContent: any = '';
    //... same as your logic

    splitBilling(){
        console.log(this.data.dupStmtAddresses);
        this.modalContent = this.data.dupStmtAddresses;
        this.addSplitBilling = 'block';
    }
}

您的ngFor循環：

<tr *ngFor="let d of modalContent; let i = index">

如果可以，請分享！