我使用 mat-selec t创建了一个名为部门的下拉列表,并为下拉列表应用了过滤器。
我创建了一个名为 accountdetail 的服务,我可以从json文件中将数据提取到部门下拉列表中。
我使用角度材料 mat-table 组件实现了表格,我希望从同一服务中获取数据到我的表格中。
import { Injectable } from '@angular/core';
import { Http } from '@angular/http';
import 'rxjs/add/operator/map';
import {RouterModule, Router} from '@angular/router';
@Injectable()
export class AccountdetailService {
constructor(private http:Http ) { }
accountdetails()
{
return this.http.get('http://localhost:4200/assets/accountdetails.json')
.map(result => result.json());
}}
import {Component, ViewChild, Inject, OnInit} from '@angular/core';
import { FormControl } from '@angular/forms';
import { Observable } from 'rxjs/Observable';
import 'rxjs/add/operator/map';
import { ReactiveFormsModule } from '@angular/forms';
import { FormGroup } from '@angular/forms';
import {MatPaginator, MatTableDataSource} from '@angular/material';
import { AccountdetailService } from '../accountdetail.service';
@Component({
selector: 'app-account',
templateUrl: './account.component.html',
styleUrls: ['./account.component.scss']
})
export class AccountComponent implements OnInit {
filtertext:string;
departments : any;
constructor( private accdetailservice: AccountdetailService ) { }
ngOnInit(){
this.accdetailservice.accountdetails()
.subscribe(data => this.departments = data);
//.subscribe(data => {console.log(data)})
}
/* Table Starts here
---------------------- */
displayedColumns1 = ['accno', 'accdesc', 'investigator', 'accCPC','location','cdeptid','depdesc'];
dataSource1= new MatTableDataSource<Element>(ELEMENT_DATA);
@ViewChild(MatPaginator) paginator: MatPaginator;
ngAfterViewInit() {
this.dataSource1.paginator = this.paginator;
}
}
export interface Element {
accno: number;
accdesc: string;
investigator: string;
accCPC: string;
location:string;
cdeptid: number;
depdesc: string;
}
const ELEMENT_DATA: Element[] = [
{accno: 5400343, accdesc: 'ASTRALIS LTD', investigator:'Kruger, James G.', accCPC: 'OR',location:'ON',cdeptid: 110350,depdesc: 'Kruger Laboratory'},
{accno: 5400344, accdesc: 'ASTRALIS LTD', investigator:'Gelbard, Alyssa.', accCPC: 'OR',location:'ON',cdeptid: 110350,depdesc: 'Kruger Laboratory'}
];
<mat-toolbar color="primary" style="width:100%"> WELCOME </mat-toolbar><br/>
<h3>Department</h3><br/>
<mat-form-field>
<mat-select style="min-width: 200px;" placeholder="Type to search" [(value)]="dept">
<input class="input1" matInput type="text" [(ngModel)]="filtertext">
<mat-option *ngFor="let dep of departments | filter:filtertext " [value]="dep.department" >
{{ dep.department }}
</mat-option>
</mat-select>
</mat-form-field>
<!-- Table starts here -->
<mat-card>
<div class="example-container mat-elevation-z8">
<mat-table #table [dataSource]="dataSource1">
<!-- Account No. Column -->
<ng-container matColumnDef="accno">
<mat-header-cell *matHeaderCellDef> Account No. </mat-header-cell>
<mat-cell *matCellDef="let element">{{element.accno}}</mat-cell>
</ng-container>
<!-- Account Description Column -->
<ng-container matColumnDef="accdesc">
<mat-header-cell *matHeaderCellDef> Account Description </mat-header-cell>
<mat-cell *matCellDef="let element">{{element.accdesc}} </mat-cell>
</ng-container>
<!-- Investigator Column -->
<ng-container matColumnDef="investigator">
<mat-header-cell *matHeaderCellDef> Investigator </mat-header-cell>
<mat-cell *matCellDef="let element">{{element.investigator}} </mat-cell>
</ng-container>
<!-- Account CPC Column -->
<ng-container matColumnDef="accCPC">
<mat-header-cell *matHeaderCellDef> Account CPC </mat-header-cell>
<mat-cell *matCellDef="let element">{{element.accCPC}}</mat-cell>
</ng-container>
<!-- Location Column -->
<ng-container matColumnDef="location">
<mat-header-cell *matHeaderCellDef> Location </mat-header-cell>
<mat-cell *matCellDef="let element">{{element.location}}</mat-cell>
</ng-container>
<!-- Client Dept ID Column -->
<ng-container matColumnDef="cdeptid">
<mat-header-cell *matHeaderCellDef> ClientDeptID </mat-header-cell>
<mat-cell *matCellDef="let element">{{element.cdeptid}}</mat-cell>
</ng-container>
<!-- Dept Description Column -->
<ng-container matColumnDef="depdesc">
<mat-header-cell *matHeaderCellDef> Dept Description </mat-header-cell>
<mat-cell *matCellDef="let element">{{element.depdesc}}</mat-cell>
</ng-container>
<mat-header-row *matHeaderRowDef="displayedColumns1" ></mat-header-row>
<mat-row *matRowDef="let row; columns: displayedColumns1;"></mat-row>
</mat-table>
<mat-paginator #paginator
[pageSize]="10"
[pageSizeOptions]="[5, 10, 20]">
</mat-paginator>
</div>
</mat-card>
我想知道如何在 accountcomponent.ts 文件中更改我的表格代码段并订阅服务中的数据。
任何人都可以引导我通过这个.....?
答案 0 :(得分:3)
请试试这个:
ngOnInit(){
this.accdetailservice.accountdetails()
.subscribe(data => {
this.departments = data;
// Add this row
this.dataSource1.data = data;
});
}
就像你知道Angular 4.3我认为你应该使用HttpClient而不是Http