Angular:将数据从材质对话框传递到组件，组件没有打开对话框 [英] Angular: Pass data from Material Dialog to component, which didn't open the dialog

问题描述

我有一个 network.component 可以打开我的对话框 send-tx-dialog.component.用户在 send-tx-dialog 中填写信息.我想将该信息发送到另一个组件:transaction-pool.component.之后我想动态显示数据表中的数据.我尝试使用 push() 但它没有用.

有什么可能的方法来做到这一点?

遵循一些我认为可能很重要的代码.

对话框的 TS 部分:

 构造函数(私人 fb:FormBuilder，private dialogRef: MatDialogRef,@Inject(MAT_DIALOG_DATA) 数据) {this.sender = data.sender;this.form = this.fb.group({发件人:[this.sender, Validators.required],收件人:[this.recipient, Validators.required],金额:[this.amount, Validators.required],费用:[this.fee, Validators.required],发布时间:[moment(), Validators.required]});}

对话框在 network.component.ts 中打开:

 openDialog(nodeID) {const dialogConfig = new MatDialogConfig();dialogConfig.disableClose = true;dialogConfig.autoFocus = true;dialogConfig.hasBackdrop = false;dialogConfig.data = {发件人:节点ID，};const dialogRef = this.dialog.open(SendTXDialogComponent, dialogConfig);dialogRef.afterClosed().subscribe(数据 =>console.log('发送交易输出:', 数据));}

transaction-pool.component.ts:

export class TransactionPoolComponent 实现 OnInit {displayColumns = ['sender', 'recipient', 'amount', 'fee'];数据源 = ELEMENT_DATA;交易:交易；构造函数(私有_AS:AuthenticationService){}ngOnInit() {this._AS.transaction.subscribe( 交易 => {this.transaction = 交易；this.dataSource.push(this.transaction);//这不显示表中的数据});}}出口接口交易{发件人:号码；收件人:字符串；数量:数量；费用:字符串；}const ELEMENT_DATA: 交易[] = [];

解决方案

我不知道这是解决问题的正确方法，但如果对您有用，我会尽力提供帮助

network.component.html

点击

network.component.ts

 构造函数(私有 fb:FormBuilder，私有 _AS:AuthService，公共对话框:MatDialog){}openDialog(): void {const dialogRef = this.dialog.open(DialogOverviewExampleDialog, {宽度:'250px'，数据: ''});dialogRef.afterClosed().subscribe(result => {this._AS.emitTransaction(result);console.log('对话框已关闭');});}

对话 TS:

@Component({选择器:'应用程序对话框'，templateUrl: 'dialog.html',})导出类 DialogOverviewExampleDialog {表格:表格组；构造函数(public dialogRef: MatDialogRef,@Inject(MAT_DIALOG_DATA) 公共数据:任意，私有 fb:FormBuilder) {this.form = this.fb.group({发件人:[''，Validators.required]，收件人:['', Validators.required],金额:[''，Validators.required]，费用:[''，Validators.required]，发布时间:[moment(), Validators.required]});}onNoClick(): void {this.dialogRef.close();}}

对话框.html

<mat-form-field class="example-full-width"><input matInput placeholder="first" formControlName="sender"></mat-form-field><mat-form-field class="example-full-width"><input matInput placeholder="second" formControlName="recipient"></mat-form-field><mat-form-field class="example-full-width"><input matInput placeholder="second" formControlName="amount"></mat-form-field><mat-form-field class="example-full-width"><input matInput placeholder="second" formControlName="fee"></mat-form-field><mat-form-field class="example-full-width"><input matInput placeholder="second" formControlName="releasedAt"></mat-form-field><button [mat-dialog-close]="form.value">保存</button>

身份验证服务:

 导出类 AuthService {公共事务 = 新的 BehaviorSubject(false);交易$ = this.transaction.asObservable();发射交易(数据:任何){this.transaction.next(数据);}

transaction-pool.component.ts

ngOnInit() {this._AS.transaction$.subscribe(data => {this.data = 数据；控制台日志(this.data)；});}

I have a network.component which opens my dialog send-tx-dialog.component. The user fills the send-tx-dialog with information. I want to send that information to another component: transaction-pool.component. And after that I want to display the data in a data table dynamically. I tried to use push() but it didn't work.

What is a possible way to do that?

Following some code which I think could be important.

Part of the TS of the dialog:

  constructor(
    private fb: FormBuilder,
    private dialogRef: MatDialogRef<SendTXDialogComponent>,
    @Inject(MAT_DIALOG_DATA) data) {

    this.sender = data.sender;

    this.form = this.fb.group({
      sender: [this.sender, Validators.required],
      recipient: [this.recipient, Validators.required],
      amount: [this.amount, Validators.required],
      fee: [this.fee, Validators.required],
      releasedAt: [moment(), Validators.required]
    });
  }

Dialog gets opened in network.component.ts:

  openDialog(nodeID) {

    const dialogConfig = new MatDialogConfig();

    dialogConfig.disableClose = true;
    dialogConfig.autoFocus = true;
    dialogConfig.hasBackdrop = false;

    dialogConfig.data = {
      sender: nodeID,
    };

    const dialogRef = this.dialog.open(SendTXDialogComponent, dialogConfig);

    dialogRef.afterClosed().subscribe(
      data => console.log('Send Transaction Output:', data)
    );

  }

transaction-pool.component.ts:

export class TransactionPoolComponent implements OnInit {
  displayedColumns = ['sender', 'recipient', 'amount', 'fee'];
  dataSource = ELEMENT_DATA;

  transaction: Transaction;

  constructor(private _AS: AuthenticationService) {
  }

  ngOnInit() {
    this._AS.transaction.subscribe( transaction => {
      this.transaction = transaction;
      this.dataSource.push(this.transaction); // This doesn't display the data in the table
      }
    );
  }
}

export interface Transaction {
  sender: number;
  recipient: string;
  amount: number;
  fee: string;
}

const ELEMENT_DATA: Transaction[] = [
];

解决方案

I don't know this is the right way to solve problem but i try to help if it's work for you

network.component.html

<button mat-raised-button (click)="openDialog()">Click</button>

network.component.ts

 constructor(private fb: FormBuilder, private _AS: AuthService, public dialog: MatDialog) {}
    openDialog(): void {
        const dialogRef = this.dialog.open(DialogOverviewExampleDialog, {
          width: '250px',
          data: ''
        });

        dialogRef.afterClosed().subscribe(result => {
          this._AS.emitTransaction(result);
          console.log('The dialog was closed');
        });
      }

dialog TS:

@Component({
  selector: 'app-dialog',
  templateUrl: 'dialog.html',
})
export class DialogOverviewExampleDialog {
  form: FormGroup;
  constructor(
    public dialogRef: MatDialogRef<DialogOverviewExampleDialog>,
    @Inject(MAT_DIALOG_DATA) public data: any, private fb: FormBuilder) {
   this.form = this.fb.group({
      sender: ['', Validators.required],
      recipient: ['', Validators.required],
      amount: ['', Validators.required],
      fee: ['', Validators.required],
      releasedAt: [moment(), Validators.required]
    });
  }
  onNoClick(): void {
    this.dialogRef.close();
  }
}

dialog.html

<div [formGroup]="form">
  <mat-form-field class="example-full-width">
    <input matInput placeholder="first" formControlName="sender">
  </mat-form-field>
  <mat-form-field class="example-full-width">
    <input matInput placeholder="second" formControlName="recipient">
  </mat-form-field>
<mat-form-field class="example-full-width">
    <input matInput placeholder="second" formControlName="amount">
  </mat-form-field>
<mat-form-field class="example-full-width">
    <input matInput placeholder="second" formControlName="fee">
  </mat-form-field>
<mat-form-field class="example-full-width">
    <input matInput placeholder="second" formControlName="releasedAt">
  </mat-form-field>
 <button [mat-dialog-close]="form.value">save</button>
</div>

AuthService:

 export class AuthService {

     public transaction = new BehaviorSubject<any>(false);
  transaction$ = this.transaction.asObservable();

  emitTransaction(data: any) {
    this.transaction.next(data);
  }

transaction-pool.component.ts

ngOnInit() {
    this._AS.transaction$.subscribe(data => {
      this.data = data;
      console.log(this.data);
    });
  }

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