这是我的下拉菜单。
<div class="btn-group mr-3" >
<div class="btn-group" ngbDropdown role="group" aria-label="Button group with nested dropdown" >
<button class="btn btn-outline-primary" ngbDropdownToggle>Job Type</button>
<div class="dropdown-menu" ngbDropdownMenu >
<button ngbDropdownItem *ngFor="let city of City" #city required>{{city}}</button>
</div>
</div>
</div>
这是按钮点击功能
<div class="formGroup">
<input type="button" class="btn btnPrimary" value="Log in"
(click)="authuService.SignIn(useremail.value, userPassword.value, city.value)">
</div>
这不起作用,所以如何像这样传递选定的项目值。请帮助