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

问题描述

我正在从可观察的位置渲染表数据，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均有效.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.

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>

推荐答案

尝试链接 mat-paginator

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

在您的.ts文件上

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

尝试使用此方法调用函数并进行检查.

Try to call your function in this method and check.

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