我正在尝试在带有Angular 2的Reactive Form上使用ng-bootstrap Typeahead组件,在查看
Typeahead’s documentation上的示例代码后,我无法使其工作.
目前,我有类似的东西:
<input type="text" aria-describedby="cityValid" class="form-control" id="inputCity" [formControl]="userForm.controls.city" [ngbTypeahead]="search">
使用与示例代码几乎相同的搜索功能,但它会因以下堆栈跟踪而失败
error_handler.js:53 TypeError: Cannot read property 'subscribe' of undefined at NgbTypeahead._subscribeToUserInput (typeahead.js:158) at NgbTypeahead.ngOnInit (typeahead.js:52) at DebugAppView._View_UserFormComponent0.detectChangesInternal (UserFormComponent.ngfactory.js:1093) at DebugAppView.AppView.detectChanges (view.js:271) at DebugAppView.detectChanges (view.js:376) at DebugAppView.AppView.detectViewChildrenChanges (view.js:297) at DebugAppView._View_ExecutionFormComponent3.detectChangesInternal (ExecutionFormComponent.ngfactory.js:551) at DebugAppView.AppView.detectChanges (view.js:271) at DebugAppView.detectChanges (view.js:376) at DebugAppView.AppView.detectContentChildrenChanges (view.js:289)
我究竟做错了什么?如果有一个关于如何在Reactive Forms上使用ng-bootstrap组件的一般指南会很棒,因为该示例基于基于模板的示例.
谢谢!