如何在 Angular 10 中编辑和更新数据

如何解决如何在 Angular 10 中编辑和更新数据

我有一个用户键入并成功提交的表单。我希望用户能够通过单击编辑图标来编辑该表单并编辑用户数据，我已经设法从 api 中提取数据，但是当我尝试分配访问权限时，它们都是空的，我最终出现未定义的错误，我做错了什么？

到目前为止我做了什么

async ngOnInit(): Promise<void> {
        this._activatedroute.paramMap.subscribe(params => {
          this.id = params.get('id');
        });
        let user = this.service.getUserSession();
        if (user != null) {
          this.project = user.currentProject.id;
        }
        this.userSession = this.userSessionService.getSession("usersession");
        this.projectId = this.userSession.currentProject.id;
        this.totalTeamsData = await this.teamService.getTeamList(this.projectId);
        await this.getTicketData();
      }
    
      async getTicketData(): Promise<void> {
          this.ticketData = await this.ticketService.getTicket(this.id,this.projectId);
          await this.toggleTicketDetails();
        
      }
    
      toggleTicketDetails() {
        console.log("the dats is",this.ticketData); //this shows the data from the api with all the fields
console.log("the dats is",this.ticketData.title); //this shows undefined 

        this.title = this.ticketData.title;
        this.description = this.ticketData.description;
        this.teamId = this.ticketData.teamId;
        this.totalTeamsData.forEach(async (data: string) => {
          if (data === this.teamId) {
            this.totalTeamMembersData = await this.teamService.getTeamMembers(this.projectId,this.teamId);
            this.totalEAData = await this.teamService.getTeamEAList(this.projectId,this.teamId);
          }
        });
        this.assignedTo = this.ticketData.assignedTo;
        this.eaId = this.ticketData.eaId;
        this.countryId = this.ticketData.countryId;
        this.projectId = this.ticketData.projectID;
        this.country = this.ticketData.country;
        this.priority = this.ticketData.priority;
        this.category = this.ticketData.category;
        this.status = this.ticketData.status;
        this.lab = this.ticketData.lab;
        this.impact = this.ticketData.impact;
        this.content = this.ticketData.content;
        this.resolution = this.ticketData.resolution;
      }

当我控制台日志 console.log("the dats is",this.ticketData); 的 json 是在那里

{
  "id": "4e600c3d-efed-43c2-b395-6238510dda24","title": "Test","assignedTo": "[e-mail]","description": "Test","resolution": null,"country": "USA","projectID": "ABC","teamId": "901","eaId": "901","countryId": "0001","priority": "Urgent","status": "Open","lab": null,"category": "Duplicate","content": null,"impact": null,"dateCreated": 1619313188806,"createdBy": "[e-mail]"
}

为什么这会给我 undefined this.title = this.ticketData.title; 和所有其他人？

这是一些 html

<div class="row">
                        <div class="col-md-12">
                            <div class="form-group">
                                <label for="title" style="color: black;">Title<span style="color: red;">*</span></label>
                                <input type="text" class="form-control" style="color: black;"
                                    required id="title" name="title" [(ngModel)]="title">
                            </div>
                        </div>
                    </div>
                    <div class="row">
                        <div class="col-md-12">
                            <div class="form-group">
                                <label for="description" style="color: black;">Description<span style="color: red;">*</span></label>
                                <textarea type="text" class="form-control" rows="3" style="color: black;"
                                    required id="description" name="description" [(ngModel)]="description">
                                </textarea>
                            </div>
                        </div>
                    </div>

我怎么了，我曾尝试研究 angualr google 文档，但我没有运气，我将不胜感激