[(ngModel)]="parameters.account.roles"
包含从数据库中获得的选定选项,但是当我打开对话框时没有选择任何选项。
所有其他字段显示正确的数据并且parameters.account.roles
不为空。
HTML
<mat-form-field appearance="fill">
<mat-label>Role</mat-label>
<mat-select multiple [(ngModel)]="parameters.account.roles">
<mat-option *ngFor="let role of allRoles" [value]="role">{{role.name}}</mat-option>
</mat-select>
</mat-form-field>
TS
constructor(
public dialogRef: MatDialogRef<UserAccountFormComponent>,
@Inject(MAT_DIALOG_DATA) public parameters: {mode: ActionMode, account: UserAccount},
private roles:RolesService) {
this.account = parameters.account;
}
ngOnInit(): void {
this.roles.getAll().subscribe((response: any) => {
this.allRoles = response._embedded.roleList as Role[];
});
}