每页的垫子分页器项目在角度 9 中不起作用 [英] Mat paginator items per page not working in angular 9

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本文介绍了每页的垫子分页器项目在角度 9 中不起作用的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我从 observable 渲染表数据，然后将数据源分配给分页器.下一页箭头以及第一页和最后一页按钮都有效.当我尝试更改每页的项目时，它不起作用.我尝试了 ngAfterViewInit 和页面事件调用，但它们没有任何区别.

import { Component, OnInit, ViewChild, AfterViewInit } from '@angular/core';从'src/app/dataservice.service'导入{DataserviceService}；从'src/app/services/dataprovider'导入{数据提供者}；从@angular/material"导入 { MatSort, MatTableDataSource, MatPaginator };从 'src/app/services/model.interface' 导入 { SamastaDigitalPayDataModel };从'@angular/common'导入{DatePipe}；@成分({选择器:'app-mis-dig-pay-report'，templateUrl: './mis-dig-pay-report.component.html',styleUrls: ['./mis-dig-pay-report.component.css']})导出类 MisDigPayReportComponent 实现 OnInit {显示表:布尔值；选择值；数据源;选项类型:数字；getby:字符串；日期;maxDate: Object = new Date();斑点:斑点；isClicked1: boolean = false;isClicked2: boolean = false;长度;构造函数(公共日期管道:DatePipe，私有服务:DataserviceService，公共数据提供者:DataProvider){}@ViewChild(MatSort, { static: true }) 排序:MatSort;@ViewChild(MatPaginator, { static: true }) paginator: MatPaginator;displayColumns = ["merchantName", "superMerchantName", "branchName","branchLoginId","fingpayTxnId","re​​questMethod", "requestBranchId", "requestAccountId", "requestLoanSeries", "requestStatus", "requestTimestamp", "aadharNumber","upiId","cardScheme","cardNumber","customerPhoneNumber","statusMessage","latitude","longitude","deviceImei","re​​marks","re​​ferenceId","orderId","terminalId"];ngOnInit(): 无效 {//this.getTableData();//this.dataSource.paginator = this.paginator;}应用过滤器(过滤器值:字符串){filterValue = filterValue.trim();//去除空格filterValue = filterValue.toLowerCase();//MatTableDataSource 默认为小写匹配this.dataSource.filter = filterValue;}getDisplayedColumns() {返回 this.displayedColumns;}获取表数据(){console.log(this.datepipe.transform(this.date[0], 'yyyy-MM-dd'))console.log(this.datepipe.transform(this.date[0], 'yyyy-MM-dd'))console.log("option",this.optionType)this.showTable= 真；this.service.getMisDigitalPayments(this.datepipe.transform(this.date[0], 'yyyy-MM-dd'), this.datepipe.transform(this.date[1], 'yyyy-MM-dd') ).订阅(响应=>{this.dataSource = new MatTableDataSource(response["data"]);this.length = response["data"].length;this.dataSource.paginator = this.paginator;this.dataSource.sort = this.sort;console.log("表数据",响应["数据"])console.log("选择", this.choosenValue)},)}页面事件(事件){//每次更改分页器时它都会运行console.log("事件")this.getTableData();}//下载报告() {//console.log("下载")//this.service.getDownloadBalanceInquiryReport(this.datepipe.transform(this.date[0], 'yyyy-MM-dd'), this.datepipe.transform(this.date[1], 'yyyy-MM-dd')). 订阅(响应 => {//const blob = new Blob([response["data"]], { type: 'text/csv;charset=utf-8;' });//console.log(blob)//let link = document.createElement("a");//let filename = "balance" + new Date().toLocaleString() + ".csv";//var url = URL.createObjectURL(blob);//link.setAttribute("href", url);//link.setAttribute("下载",文件名);//link.style.visibility = '隐藏';//document.body.appendChild(link);//链接.下载 = 文件名;//link.click();//});//}}

付款报告</h3><div class="container-fluid" style="font-size: 18px;margin-top: 20px;"><div class="row"><div class="col-lg-3 col-xs-6 col-sm-6 col-md-6"><ejs-daterangepicker placeholder="From and To Date"format='dd-MM-yyyy' [max]='maxDate' [(ngModel)]="date"></ejs-daterangepicker>

<div class=" col-lg-3 col-xs-6 col-sm-6 col-md-6"><button class="btn customBtn" (click)="getTableData(); ">获取报告</button>

<div [隐藏]="!showTable"><div class="text-right"><mat-form-field><input class="inputSearch" matInput (keyup)="applyFilter($event.target.value)" placeholder="Search"></mat-form-field>

<div class=" col-lg-3 col-xs-6 col-sm-6 col-md-6" ><div class="btn-group-export" style="margin-top: 15px;"><button id="exportBtn1" (click)="exporter.exportTable('csv', {fileName:'MISDigitalPaymentReport'}); isClicked1 = true; isClicked2 = false;"[ngClass]="{'set-color-export': isClicked1 }">导出到 csv</button><button id="exportBtn2" (click)="exporter.exportTable('xlsx', {fileName:'MISDigitalPaymentReport'}); isClicked1 = false; isClicked2 = true;"[ngClass]="{'set-color-export': isClicked2 }">导出到 xlsx</button>

<div style="overflow: auto;"><table mat-table [dataSource]="dataSource" class="tableCss table-striped" style="width: 100%;"matSort matTableExporter #exporter="matTableExporter" ><ng-container matColumnDef="merchantName"><th mat-h​​eader-cell *matHeaderCellDef mat-sort-header>员工姓名<td mat-cell *matCellDef="let element">{{element.merchantName}} </td></ng-容器><ng-container matColumnDef="branchName"><th mat-h​​eader-cell *matHeaderCellDef mat-sort-header>分支名称</th><td mat-cell *matCellDef="let element">{{element.branchName}} </td></ng-容器><ng-container matColumnDef="branchLoginId"><th mat-h​​eader-cell *matHeaderCellDef mat-sort-header>分行登录 ID </th><td mat-cell *matCellDef="let element">{{element.branchLoginId}} </td></ng-容器><ng-container matColumnDef="fingpayTxnId"><th mat-h​​eader-cell *matHeaderCellDef mat-sort-header>Fingpay Txn Id </th><td mat-cell *matCellDef="let element">{{element.fingpayTxnId}} </td></ng-容器><ng-container matColumnDef="superMerchantName"><th mat-h​​eader-cell *matHeaderCellDef mat-sort-header>公司名称<td mat-cell *matCellDef="let element">{{element.superMerchantName}} </td></ng-容器><ng-container matColumnDef="requestMethod"><th mat-h​​eader-cell *matHeaderCellDef mat-sort-header>请求方法<td mat-cell *matCellDef="let element">{{element.requestMethod}}</td></ng-容器><ng-container matColumnDef="requestBranchId"><th mat-h​​eader-cell *matHeaderCellDef mat-sort-header align="center">请求分支 ID </th><td mat-cell *matCellDef="let element">{{element.requestBranchId}} </td></ng-容器><ng-container matColumnDef="requestAccountId"><th mat-h​​eader-cell *matHeaderCellDef mat-sort-header>请求帐户 ID </th><td mat-cell *matCellDef="let element">{{element.requestAccountId}} </td></ng-容器><ng-container matColumnDef="requestLoanSeries"><th mat-h​​eader-cell *matHeaderCellDef mat-sort-header>请求贷款系列<td mat-cell *matCellDef="let element">{{element.requestLoanSeries}} </td></ng-容器><ng-container matColumnDef="requestStatus"><th mat-h​​eader-cell *matHeaderCellDef mat-sort-header>请求状态<td mat-cell *matCellDef="let element">{{element.requestStatus}} </td></ng-容器><ng-container matColumnDef="requestTimestamp"><th mat-h​​eader-cell *matHeaderCellDef mat-sort-header>请求时间戳</th><td mat-cell *matCellDef="let element">{{element.requestTimestamp}} </td></ng-容器><ng-container matColumnDef="aadharNumber"><th mat-h​​eader-cell *matHeaderCellDef mat-sort-header>Aadhar 号 </th><td mat-cell *matCellDef="let element">{{element.aadharNumber}} </td></ng-容器><ng-container matColumnDef="cardAcceptorTerminalIdentification"><th mat-h​​eader-cell *matHeaderCellDef mat-sort-header>cardAcceptorTerminalIdentification </th><td mat-cell *matCellDef="let element">{{element.cardAcceptorTerminalIdentification}} </td></ng-容器><ng-container matColumnDef="upiId"><th mat-h​​eader-cell *matHeaderCellDef mat-sort-header>UpiId </th><td mat-cell *matCellDef="let element">{{element.upiId}} </td></ng-容器><ng-container matColumnDef="cardScheme"><th mat-h​​eader-cell *matHeaderCellDef mat-sort-header>卡计划</th><td mat-cell *matCellDef="let element">{{element.cardScheme}} </td></ng-容器><ng-container matColumnDef="cardNumber"><th mat-h​​eader-cell *matHeaderCellDef mat-sort-header>卡号</th><td mat-cell *matCellDef="let element">{{element.cardNumber}} </td></ng-容器><ng-container matColumnDef="customerPhoneNumber"><th mat-h​​eader-cell *matHeaderCellDef mat-sort-header>客户电话号码<td mat-cell *matCellDef="let element">{{element.customerPhoneNumber}} </td></ng-容器><ng-container matColumnDef="statusMessage"><th mat-h​​eader-cell *matHeaderCellDef mat-sort-header>状态消息</th><td mat-cell *matCellDef="let element">{{element.statusMessage}} </td></ng-容器><ng-container matColumnDef="纬度"><th mat-h​​eader-cell *matHeaderCellDef mat-sort-header>纬度</th><td mat-cell *matCellDef="let element">{{element.latitude}} </td></ng-容器><ng-container matColumnDef="longitude"><th mat-h​​eader-cell *matHeaderCellDef mat-sort-header>经度</th><td mat-cell *matCellDef="let element">{{element.longitude}} </td></ng-容器><ng-container matColumnDef="deviceImei"><th mat-h​​eader-cell *matHeaderCellDef mat-sort-header>设备 Imei </th><td mat-cell *matCellDef="let element">{{element.deviceImei}} </td></ng-容器><ng-container matColumnDef="remarks"><th mat-h​​eader-cell *matHeaderCellDef mat-sort-header>备注<td mat-cell *matCellDef="let element">{{element.remarks}} </td></ng-容器><ng-container matColumnDef="referenceId"><th mat-h​​eader-cell *matHeaderCellDef mat-sort-header>参考 ID </th><td mat-cell *matCellDef="let element">{{element.referenceId}} </td></ng-容器><ng-container matColumnDef="orderId"><th mat-h​​eader-cell *matHeaderCellDef mat-sort-header>订单 ID </th><td mat-cell *matCellDef="let element">{{element.orderId}} </td></ng-容器><ng-container matColumnDef="terminalId"><th mat-h​​eader-cell *matHeaderCellDef mat-sort-header>终端ID</th><td mat-cell *matCellDef="let element">{{element.terminalId}} </td></ng-容器><tr mat-h​​eader-row *matHeaderRowDef="displayedColumns"></tr><tr mat-row *matRowDef="let row; columns: getDisplayedColumns();"></tr>

<mat-paginator #paginator [pageSizeOptions]="[10, 20, 100]" showFirstLastButtons></mat-paginator>

解决方案

尝试链接 mat-paginator

上的 page 事件

在您的 .ts 文件中

 onPaginateChange($event) {console.log($event);}

尝试在此方法中调用您的函数并检查.

I'm rendering the table data from an observable and then assigning the datasource to the paginator. The next page arrows are working, as well as the first page and last page buttons. When I'm trying to change the items per page, it is not working. I tried ngAfterViewInit and page event calling and they did'nt make any difference.

import { Component, OnInit, ViewChild, AfterViewInit } from '@angular/core';
import { DataserviceService } from 'src/app/dataservice.service';
import { DataProvider } from 'src/app/services/dataprovider';
import { MatSort, MatTableDataSource, MatPaginator } from '@angular/material';
import { SamastaDigitalPayDataModel } from 'src/app/services/model.interface';
import { DatePipe } from '@angular/common';

@Component({
  selector: 'app-mis-dig-pay-report',
  templateUrl: './mis-dig-pay-report.component.html',
  styleUrls: ['./mis-dig-pay-report.component.css']
})
export class MisDigPayReportComponent implements OnInit  {

  showTable: boolean;
  choosenValue;
  dataSource;
  optionType: number;
  getby: string;
  date;
  maxDate: Object = new Date();
  blob: Blob;
  isClicked1: boolean = false;
  isClicked2: boolean = false;
  length;
  

  constructor(public datepipe: DatePipe, private service: DataserviceService, public dataProvider: DataProvider)  { }
  @ViewChild(MatSort, { static: true }) sort: MatSort;
  @ViewChild(MatPaginator, { static: true }) paginator: MatPaginator;

       
  displayedColumns = ["merchantName", "superMerchantName", "branchName","branchLoginId","fingpayTxnId","requestMethod", "requestBranchId", "requestAccountId", "requestLoanSeries", "requestStatus", "requestTimestamp","aadharNumber","upiId","cardScheme","cardNumber", "customerPhoneNumber","statusMessage","latitude","longitude","deviceImei","remarks","referenceId","orderId","terminalId"];
  ngOnInit(): void {
    // this.getTableData();
    // this.dataSource.paginator = this.paginator;

  }

  applyFilter(filterValue: string) {
    filterValue = filterValue.trim(); // Remove whitespace
    filterValue = filterValue.toLowerCase(); // MatTableDataSource defaults to lowercase matches
    this.dataSource.filter = filterValue;
  }
  
 


  getDisplayedColumns() {
    return this.displayedColumns;
  }

  getTableData() {
    console.log(this.datepipe.transform(this.date[0], 'yyyy-MM-dd'))

    console.log(this.datepipe.transform(this.date[0], 'yyyy-MM-dd'))
    console.log("option",this.optionType)


    this.showTable= true;
    this.service.getMisDigitalPayments(this.datepipe.transform(this.date[0], 'yyyy-MM-dd'), this.datepipe.transform(this.date[1], 'yyyy-MM-dd') ).subscribe(

    response => {
        this.dataSource = new MatTableDataSource<SamastaDigitalPayDataModel>(response["data"]);
        this.length = response["data"].length;
        this.dataSource.paginator = this.paginator;
        this.dataSource.sort = this.sort;
        console.log("table data",response["data"])
        console.log("choosen", this.choosenValue)
      }, 
      )
  }
  pageEvent(event){
    //it will run everytime you change paginator
    console.log("event")
      this.getTableData();
  }

  


 
  // downloadReport() {
  //   console.log("downloading")
  //   this.service.getDownloadBalanceInquiryReport(this.datepipe.transform(this.date[0], 'yyyy-MM-dd'), this.datepipe.transform(this.date[1], 'yyyy-MM-dd')).subscribe(response => {

  //     const blob = new Blob([response["data"]], { type: 'text/csv;charset=utf-8;' });
  //     console.log(blob)
  //     let link = document.createElement("a");
  //     let filename = "balance" + new Date().toLocaleString() + ".csv";
  //     var url = URL.createObjectURL(blob);
  //     link.setAttribute("href", url);
  //     link.setAttribute("download",filename);
  //     link.style.visibility = 'hidden';
  //     document.body.appendChild(link);
  //     link.download = filename;
  //     link.click();
  //     });
    
  // }

}

<h3 align="center"> Payment Report</h3>
<div class="container-fluid" style="font-size: 18px;margin-top: 20px;">
    <div class="row">
        <div class="col-lg-3 col-xs-6 col-sm-6 col-md-6">
            <ejs-daterangepicker placeholder="From and To Date"format='dd-MM-yyyy' [max]='maxDate' [(ngModel)]="date"></ejs-daterangepicker>
        </div>
        <div class=" col-lg-3 col-xs-6 col-sm-6 col-md-6">
            <button class="btn customBtn" (click)="getTableData(); ">Get Report</button>
        </div>
    </div>
</div>

<div [hidden]="!showTable">
    <div class="text-right">
        <mat-form-field>
            <input class="inputSearch" matInput (keyup)="applyFilter($event.target.value)" placeholder="Search">
        </mat-form-field>
    </div>
   
    <div class=" col-lg-3 col-xs-6 col-sm-6 col-md-6" >
        <div class="btn-group-export" style="margin-top: 15px;">
            <button id="exportBtn1"  (click)="exporter.exportTable('csv', {fileName:'MISDigitalPaymentReport'}); isClicked1 = true; isClicked2 = false;"  [ngClass]="{'set-color-export': isClicked1 }">Export to csv</button>
            <button id="exportBtn2"  (click)="exporter.exportTable('xlsx', {fileName:'MISDigitalPaymentReport'}); isClicked1 = false; isClicked2 = true;" [ngClass]="{'set-color-export': isClicked2 }">Export to xlsx</button>
        </div>
    </div>
    <div style="overflow: auto;">

    <table mat-table [dataSource]="dataSource" class="tableCss table-striped" style="width: 100%;" matSort matTableExporter    #exporter="matTableExporter" >
    
        <ng-container matColumnDef="merchantName">
            <th mat-header-cell *matHeaderCellDef mat-sort-header> Employee Name </th>
            <td mat-cell *matCellDef="let element">{{element.merchantName}} </td>
        </ng-container>
        <ng-container matColumnDef="branchName">
            <th mat-header-cell *matHeaderCellDef mat-sort-header> Branch Name </th>
            <td mat-cell *matCellDef="let element">{{element.branchName}} </td>
        </ng-container>

        <ng-container matColumnDef="branchLoginId">
            <th mat-header-cell *matHeaderCellDef mat-sort-header> Branch Login Id </th>
            <td mat-cell *matCellDef="let element">{{element.branchLoginId}} </td>
        </ng-container>
        <ng-container matColumnDef="fingpayTxnId">
            <th mat-header-cell *matHeaderCellDef mat-sort-header> Fingpay Txn Id </th>
            <td mat-cell *matCellDef="let element">{{element.fingpayTxnId}} </td>
        </ng-container>
        <ng-container matColumnDef="superMerchantName">
            <th mat-header-cell *matHeaderCellDef mat-sort-header> Corporate Name </th>
            <td mat-cell *matCellDef="let element">{{element.superMerchantName}} </td>
        </ng-container>
        <ng-container matColumnDef="requestMethod">
            <th mat-header-cell *matHeaderCellDef mat-sort-header> Request Method </th>
            <td mat-cell *matCellDef="let element"> {{element.requestMethod}}</td>
        </ng-container>
        
        <ng-container matColumnDef="requestBranchId">
            <th mat-header-cell *matHeaderCellDef mat-sort-header align="center"> Request Branch Id </th>
            <td mat-cell *matCellDef="let element"> {{element.requestBranchId}} </td>
        </ng-container>
        
    
        <ng-container matColumnDef="requestAccountId">
            <th mat-header-cell *matHeaderCellDef mat-sort-header> Request Account Id </th>
            <td mat-cell *matCellDef="let element"> {{element.requestAccountId}} </td>
        </ng-container>
    
        <ng-container matColumnDef="requestLoanSeries">
            <th mat-header-cell *matHeaderCellDef mat-sort-header> Request Loan Series</th>
            <td mat-cell *matCellDef="let element"> {{element.requestLoanSeries}} </td>
        </ng-container>
    
        <ng-container matColumnDef="requestStatus">
            <th mat-header-cell *matHeaderCellDef mat-sort-header> Request Status </th>
            <td mat-cell *matCellDef="let element"> {{element.requestStatus}} </td>
        </ng-container>
        
        
        <ng-container matColumnDef="requestTimestamp">
            <th mat-header-cell *matHeaderCellDef mat-sort-header> Request Timestamp </th>
            <td mat-cell *matCellDef="let element"> {{element.requestTimestamp}} </td>
        </ng-container>

        
        <ng-container matColumnDef="aadharNumber">
            <th mat-header-cell *matHeaderCellDef mat-sort-header> Aadhar Number </th>
            <td mat-cell *matCellDef="let element"> {{element.aadharNumber}} </td>
        </ng-container>

        <ng-container matColumnDef="cardAcceptorTerminalIdentification">
            <th mat-header-cell *matHeaderCellDef mat-sort-header> cardAcceptorTerminalIdentification </th>
            <td mat-cell *matCellDef="let element"> {{element.cardAcceptorTerminalIdentification}} </td>
        </ng-container>
       
        <ng-container matColumnDef="upiId">
            <th mat-header-cell *matHeaderCellDef mat-sort-header> UpiId </th>
            <td mat-cell *matCellDef="let element"> {{element.upiId}} </td>
        </ng-container>
        
        <ng-container matColumnDef="cardScheme">
            <th mat-header-cell *matHeaderCellDef mat-sort-header> Card Scheme </th>
            <td mat-cell *matCellDef="let element"> {{element.cardScheme}} </td>
        </ng-container>
        <ng-container matColumnDef="cardNumber">
            <th mat-header-cell *matHeaderCellDef mat-sort-header> Card Number </th>
            <td mat-cell *matCellDef="let element"> {{element.cardNumber}} </td>
        </ng-container>
        <ng-container matColumnDef="customerPhoneNumber">
            <th mat-header-cell *matHeaderCellDef mat-sort-header> Customer PhoneNumber </th>
            <td mat-cell *matCellDef="let element"> {{element.customerPhoneNumber}} </td>
        </ng-container>
        <ng-container matColumnDef="statusMessage">
            <th mat-header-cell *matHeaderCellDef mat-sort-header> Status Message </th>
            <td mat-cell *matCellDef="let element"> {{element.statusMessage}} </td>
        </ng-container>
        <ng-container matColumnDef="latitude">
            <th mat-header-cell *matHeaderCellDef mat-sort-header> Latitude </th>
            <td mat-cell *matCellDef="let element"> {{element.latitude}} </td>
        </ng-container>
        <ng-container matColumnDef="longitude">
            <th mat-header-cell *matHeaderCellDef mat-sort-header> Longitude </th>
            <td mat-cell *matCellDef="let element"> {{element.longitude}} </td>
        </ng-container>
        <ng-container matColumnDef="deviceImei">
            <th mat-header-cell *matHeaderCellDef mat-sort-header> Device Imei </th>
            <td mat-cell *matCellDef="let element"> {{element.deviceImei}} </td>
        </ng-container>
        <ng-container matColumnDef="remarks">
            <th mat-header-cell *matHeaderCellDef mat-sort-header> Remarks </th>
            <td mat-cell *matCellDef="let element"> {{element.remarks}} </td>
        </ng-container>
        <ng-container matColumnDef="referenceId">
            <th mat-header-cell *matHeaderCellDef mat-sort-header> Reference Id </th>
            <td mat-cell *matCellDef="let element"> {{element.referenceId}} </td>
        </ng-container>
        <ng-container matColumnDef="orderId">
            <th mat-header-cell *matHeaderCellDef mat-sort-header> Order Id </th>
            <td mat-cell *matCellDef="let element"> {{element.orderId}} </td>
        </ng-container>
        <ng-container matColumnDef="terminalId">
            <th mat-header-cell *matHeaderCellDef mat-sort-header> Terminal Id </th>
            <td mat-cell *matCellDef="let element"> {{element.terminalId}} </td>
        </ng-container>
       
    
        <tr mat-header-row *matHeaderRowDef="displayedColumns"></tr>
        <tr mat-row *matRowDef="let row; columns:   getDisplayedColumns();"></tr>
    
    </table>
    </div>

    </div>
    <mat-paginator  #paginator  [pageSizeOptions]="[10, 20, 100]" showFirstLastButtons></mat-paginator>

解决方案

Try to link the page event on mat-paginator

<mat-paginator [length]="length" [pageSizeOptions]="[5, 10, 25]" [pageSize]="query.pageSize"
            (page)="onPaginateChange($event)"></mat-paginator>

On your .ts file

 onPaginateChange($event) {
 console.log($event);
 }

Try to call your function in this method and check.

这篇关于每页的垫子分页器项目在角度 9 中不起作用的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！

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