问题
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>回答1:
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.
回答2:
I was getting an error in the core.js file for some unknown reason. To resolve the issue, I have updated my project to the latest version angular 10 using the commands:
ng update @angular/core @angular/cli
ng update @angular/material
来源：https://stackoverflow.com/questions/62653408/mat-paginator-items-per-page-not-working-in-angular-9