在angular2服务中打开/关闭MdDialog

Question

我有服务和错误处理程序服务，当我尝试调用对话框代码时，它会出错。

import { MdDialog, MdDialogRef } from '@angular/material';
import { HeaderDialog } from '../dialog-boxes.component';

export class MyService {
dialogRef: MdDialogRef<any>;
constructor(private dialog: MdDialog) {}
this.dialogRef = this.dialog.open(HeaderDialog, {
    height: 'auto',
    width: 'auto',
});

this.dialogRef.componentInstance.message = 'Hello';
this.dialogRef.afterClosed().subscribe(result => {
    if (result) {}
    this.dialogRef = null;
});
}

  

未处理的承诺拒绝：错误：＆＃34; HeaderDialog＆＃34;的提供商无效 - 只允许Provider和Type的实例，得到：[EConfig，Constants，？undefined？，...]

Answer 1

您应该发布组件HeaderDialog，在此组件中您遇到问题。