单击NgbModal Background时的函数调用。anuglar 2模式

我试图通过单击中使用的模式的背景(阴影部分)来调用函数(比如“randomFunction”) angular2 使用 NgbModal .

这是 companyNumberComponent.html :

<company-numbers-list (companyNumberModal)="modalService.open(companyNumberModal);"></company-numbers-list>

<template ngbModalContainer #companyNumberModal let-c="close" let-d="dismiss" id="companyNumberModal">
    <div class="modal-body">
        <company-number-modal></company-number-modal>
    </div>
    <div class="modal-footer text-center">
        <mi-button [type]="'info'" id="number_flow_close" [raised]="true" aria-label="close" (click)="c('Close click');
        ">Close</mi-button>
    </div>

companyNumberComponent.ts 文件:

@Component
 .....
 export class companyNumberComponent(){
     constructor(private modalService: NgbModal){}
     public randomFunction(){
         console.log("hi");
     }
 }

有谁能建议我怎么做或者怎么称呼这个吗 randomFunction() 在 dismiss() 或 close() 模态函数。