Angular MatTable未呈现MatTableDataSource数据
我正在创建一个保存服务器端分页数据的表。但是,当我尝试在MatTable中渲染它时,我的数据根本不显示。我记录了数据源,它通常显示数据。代码如下: 数据表.component.htmlAngular MatTable未呈现MatTableDataSource数据,angular,angular-material,mat-table,Angular,Angular Material,Mat Table,我正在创建一个保存服务器端分页数据的表。但是,当我尝试在MatTable中渲染它时,我的数据根本不显示。我记录了数据源,它通常显示数据。代码如下: 数据表.component.html <div class="card-body mt-3"> <table mat-table [dataSource]="dataSource" class="mat-elevation-z8"> <!-- Nu
<div class="card-body mt-3">
<table mat-table [dataSource]="dataSource" class="mat-elevation-z8">
<!-- Number Column -->
<ng-container matColumnDef="tn">
<th mat-header-cell *matHeaderCellDef> TICKET# </th>
<td mat-cell *matCellDef="let element"> {{element.tn}} </td>
</ng-container>
<!-- Number Column -->
<ng-container matColumnDef="title">
<th mat-header-cell *matHeaderCellDef> TITLE </th>
<td mat-cell *matCellDef="let element"> {{element.title}} </td>
</ng-container>
<!-- Number Column -->
<ng-container matColumnDef="date">
<th mat-header-cell *matHeaderCellDef> DATE </th>
<td mat-cell *matCellDef="let element"> {{element.create_time}} </td>
</ng-container>
<!-- Number Column -->
<ng-container matColumnDef="product">
<th mat-header-cell *matHeaderCellDef> PRODUCT </th>
<td mat-cell *matCellDef="let element"> {{element.product}} </td>
</ng-container>
<!-- Number Column -->
<ng-container matColumnDef="daysFromRegistration">
<th mat-header-cell *matHeaderCellDef> DAYS SINCE REGISTERED </th>
<td mat-cell *matCellDef="let element"> {{element.daysFromRegistration}} </td>
</ng-container>
<!-- Number Column -->
<ng-container matColumnDef="analysisDays">
<th mat-header-cell *matHeaderCellDef> DAYS ANALYSED </th>
<td mat-cell *matCellDef="let element"> {{element.analysisDays}} </td>
</ng-container>
<!-- Number Column -->
<ng-container matColumnDef="developmentDays">
<th mat-header-cell *matHeaderCellDef> DAYS IN DEVELOPMENT </th>
<td mat-cell *matCellDef="let element"> {{element.developmentDays}} </td>
</ng-container>
<!-- Number Column -->
<ng-container matColumnDef="waitOrResponseDays">
<th mat-header-cell *matHeaderCellDef> DAYS IN WAITING STATE </th>
<td mat-cell *matCellDef="let element"> {{element.waitOrResponseDays}} </td>
</ng-container>
<!-- Number Column -->
<ng-container matColumnDef="slaDays">
<th mat-header-cell *matHeaderCellDef> SLA# </th>
<td mat-cell *matCellDef="let element"> {{element.slaDays}} </td>
</ng-container>
<!-- Number Column -->
<ng-container matColumnDef="user">
<th mat-header-cell *matHeaderCellDef> AGENT USERNAME </th>
<td mat-cell *matCellDef="let element"> {{element.user}} </td>
</ng-container>
<tr mat-header-row *matHeaderRowDef="displayedColumns"></tr>
<tr mat-row *matRowDef="let row; columns: displayedColumns;"></tr>
</table>
<mat-paginator [pageSizeOptions]="[5, 10, 25, 100]"></mat-paginator>
</div>
控制台日志(票据)
试试这个
ngOnInit() {
this.ticketService.findTickets(0, 25).subscribe(
(tickets: Ticket[]) => {
this.dataSource = new MatTableDataSource(tickets);
this.SetTableProperties();
}
)
}
SetTableProperties() {
this.dataSource.paginator = this.paginator;
}
不起作用。我认为这不是一个问题,在paginator组件,因为我已经尝试了没有它你能提供角材料版本?它甚至没有呈现标题?如果您使用console.log(tickets),您还可以发布控制台显示的内容吗?我还没有实现标题。我已经在底部添加了票证的console.log,您有console.log数据源。尝试控制台日志记录。
import { HttpClient, HttpParams } from '@angular/common/http';
import { Injectable } from '@angular/core';
import { Observable } from 'rxjs';
import { Ticket } from '../model/ticket';
@Injectable({
providedIn: 'root'
})
export class TicketService {
private ticketUrl: string;
constructor(private http: HttpClient) {
this.ticketUrl = 'http://localhost:8080/tickets';
}
public findTickets(pageNumber=0, pageSize=10): Observable<Ticket[]> {
return this.http.get<Ticket[]>(this.ticketUrl, {
params: new HttpParams()
.set('page', pageNumber.toString())
.set('size', pageSize.toString())
})
}
}
MatTableDataSource {_renderData: BehaviorSubject, _filter: BehaviorSubject, _internalPageChanges: Subject, _renderChangesSubscription: Subscriber, sortingDataAccessor: ƒ, …}
filterPredicate: (data, filter) => {…}
filteredData: {content: Array(24), pageable: {…}, totalElements: 32876, last: false, totalPages: 1316, …}
sortData: (data, sort) => {…}
sortingDataAccessor: (data, sortHeaderId) => {…}
_data: BehaviorSubject {_isScalar: false, observers: Array(1), closed: false, isStopped: false, hasError: false, …}
_filter: BehaviorSubject {_isScalar: false, observers: Array(1), closed: false, isStopped: false, hasError: false, …}
_internalPageChanges: Subject {_isScalar: false, observers: Array(0), closed: false, isStopped: false, hasError: false, …}
_renderChangesSubscription: Subscriber {closed: false, _parentOrParents: null, _subscriptions: Array(1), syncErrorValue: null, syncErrorThrown: false, …}
_renderData: BehaviorSubject {_isScalar: false, observers: Array(1), closed: false, isStopped: false, hasError: false, …}
data: (...)
filter: (...)
paginator: (...)
sort: (...)
__proto__: DataSource
{content: Array(10), pageable: {…}, last: false, totalElements: 32878, totalPages: 3288, …}
content: (10) [{…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}]
empty: false
first: true
last: false
number: 0
numberOfElements: 10
pageable: {sort: {…}, offset: 0, pageNumber: 0, pageSize: 10, unpaged: false, …}
size: 10
sort: {sorted: false, unsorted: true, empty: true}
totalElements: 32878
totalPages: 3288
__proto__: Object
ngOnInit() {
this.ticketService.findTickets(0, 25).subscribe(
(tickets: Ticket[]) => {
this.dataSource = new MatTableDataSource(tickets);
this.SetTableProperties();
}
)
}
SetTableProperties() {
this.dataSource.paginator = this.paginator;
}