[英]Open ngx Modal after Angular http Request
I am trying to open an ngx Modal window after an http call made from an angular application.我试图在从角度应用程序进行 http 调用后打开一个ngx 模态窗口。
Here is the code of app.module.ts这是app.module.ts的代码
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { ReactiveFormsModule } from '@angular/forms';
import { AppComponent } from './app.component';
import { HttpClientModule } from '@angular/common/http';
import { BrowserAnimationsModule } from '@angular/platform-browser/animations';
import { ModalModule } from 'ngx-bootstrap/modal';
@NgModule({
declarations: [
AppComponent
],
imports: [
BrowserModule,
HttpClientModule,
ReactiveFormsModule,
BrowserAnimationsModule,
ModalModule.forRoot(),
],
providers: [],
bootstrap: [AppComponent]
})
export class AppModule { }
Here is the code of the component in wich the http call is made这是进行http调用的组件的代码
import { Component, TemplateRef, ViewChild } from '@angular/core';
import { HttpClient, HttpHeaders } from '@angular/common/http';
import { FormControl, FormGroup, Validators } from '@angular/forms';
import { Tour } from './Models/Tour/tour.model';
import { BsModalService, BsModalRef } from 'ngx-bootstrap/modal';
@Component({
selector: 'app-root',
templateUrl: './app.component.html',
styleUrls: ['./app.component.scss']
})
export class AppComponent {
title = 'AnguLearn';
public fGroup: FormGroup;
public Tours : Tour[] = [];
public Empty = false;
@ViewChild('template', {static: true}) modalr? : TemplateRef<any>;
modalRef?: BsModalRef;
constructor(private modalService: BsModalService){
}
public getDatas(){
const httpOptions = {
headers: new HttpHeaders({
'Content-Type': 'application/json; charset=utf-8'
})
};
this.http.post<[Tour]>("https://localhost:44387/api/tours", filter_details, httpOptions).subscribe(
(response)=>{
this.Tours = response;
this.Empty = response.length <= 0;
this.openModal(this.modalr);//I want to open a modal box here
}, errors=>{ console.log(errors)});
}
openModal(template: TemplateRef<any>) {
this.modalRef = this.modalService.show(template);
}
}
It did not work, and it did not compile.它不起作用,也无法编译。 I always get the following error on the line with this.openModal(this.modalr);
我总是在使用this.openModal(this.modalr); 时遇到以下错误; :
:
Argument of type 'TemplateRef |
'TemplateRef | 类型的参数undefined' is not assignable to parameter of type 'TemplateRef'.
undefined' 不能分配给类型为 'TemplateRef' 的参数。 Type 'undefined' is not assignable to type 'TemplateRef'.
类型 'undefined' 不能分配给类型 'TemplateRef'。
Any idea ?任何的想法 ?
You have a type error here.你在这里有一个类型错误。
@ViewChild('template', {static: true}) modalr? : TemplateRef<any>;
?
means optional value for modalr
.表示
modalr
可选值。 If it's true, you should change your methods in this way of typing.如果是这样,您应该以这种打字方式更改您的方法。 Or if you sure to have value in
TemplateRef
- just remove ?
或者,如果您确定在
TemplateRef
有价值 - 只需删除?
sign from property syntax like that:从属性语法中签名,如下所示:
@ViewChild('template', {static: true}) modalr : TemplateRef<any>;
If you not sure you have template value do that:如果您不确定您有模板值,请执行以下操作:
openModal(template?: TemplateRef<any>) {
if (template) {
this.modalRef = this.modalService.show(template);
}
}
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