bildungdb/src/app/pruefung/pruefung.component.ts
2022-08-26 15:37:05 +02:00

73 lines
2.4 KiB
TypeScript

import { AfterViewInit, Component, OnInit, ViewChild } from '@angular/core';
import { PruefungService } from '../services/pruefung.service';
import { Pruefung } from '../Pruefung';
import { MatTableDataSource } from '@angular/material/table';
import { MatInputModule } from '@angular/material/input';
import { MatPaginatorModule } from '@angular/material/paginator';
import { MatPaginator } from '@angular/material/paginator'
import { MatSort, Sort } from '@angular/material/sort';
import {LiveAnnouncer} from '@angular/cdk/a11y';
import { SelectionModel } from '@angular/cdk/collections';
@Component({
selector: 'app-pruefung',
templateUrl: './pruefung.component.html',
styleUrls: ['./pruefung.component.css']
})
export class PruefungComponent implements OnInit {
constructor(private Pruefung: PruefungService, private _liveAnnouncer: LiveAnnouncer) { }
public dataSource: any;
public pruefungen: any;
public selection: any;
displayedColumns: any = ["examid", "examshort", "examname", "examdescription"];
ngOnInit(): void {
this.Pruefung.getPruefungen().subscribe(
(
data: any) => {
// console.log(data);
this.pruefungen = data.exam;
this.dataSource = new MatTableDataSource(this.pruefungen);
this.dataSource.paginator = this.paginator;
this.dataSource.sort = this.sort;
})
}
@ViewChild('paginator') paginator: MatPaginator;
@ViewChild(MatSort) sort: MatSort;
ngAfterViewInit() {
if(this.dataSource != undefined) {
this.dataSource.paginator = this.paginator;
this.dataSource.sort = this.sort;
console.log(this.dataSource);
}
else
console.log("DataSource undefined in AfterViewInit");
}
applyFilter(event: Event) {
const filterValue = (event.target as HTMLInputElement).value;
this.dataSource.filter = filterValue.trim().toLowerCase();
console.log("Filter: " + this.dataSource.filter);
}
/** Announce the change in sort state for assistive technology. */
announceSortChange(sortState: Sort) {
// This example uses English messages. If your application supports
// multiple language, you would internationalize these strings.
// Furthermore, you can customize the message to add additional
// details about the values being sorted.
if (sortState.direction) {
this._liveAnnouncer.announce(`Sorted ${sortState.direction}ending`);
} else {
this._liveAnnouncer.announce('Sorting cleared');
}
}
}