Angular6中使用KendoGrid进行服务器端分页,分页器始终重置为第一页
创始人
2024-10-22 11:01:13
0

问题的原因是当Grid重新绑定数据时,分页器会自动重置为第一页。解决此问题的一种方法是在Grid的每个数据绑定完成后获取当前选定页,然后手动设置Grid到该页。

以下是示例代码:

在component.ts文件中:

import { Component, OnInit, ViewChild } from '@angular/core';
import { GridComponent } from '@progress/kendo-angular-grid';
import { Observable } from 'rxjs';
import { map } from 'rxjs/operators';

@Component({
  selector: 'app-root',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.css']
})
export class AppComponent implements OnInit {
  public view: Observable;
  public total: Observable;
  public pageSize = 10;
  public skip = 0;
  private previousSkip = 0;
  @ViewChild(GridComponent) public grid: GridComponent;

  constructor() {
  }

  ngOnInit() {
    this.loadItems();
  }

  public pageChange(event: any): void {
    this.skip = event.skip;
    this.loadItems();
  }

  private loadItems(): void {
    // Load data from server
    this.view = this.getServiceData().pipe(map(data => data.slice(this.skip, this.skip + this.pageSize)));
    this.total = this.getServiceData().pipe(map(data => data.length));
    this.view.subscribe(() => {
      // After data is loaded, set Grid to previous selected page
      if (this.previousSkip > 0) {
        this.grid.dataState.skip = this.previousSkip;
        this.grid.pageChange.emit({ skip: this.previousSkip, take: this.pageSize });
      }
    });
  }

  private getServiceData(): Observable {
    // Replace with actual service call to fetch data from server
    return new Observable(observer => {
      setTimeout(() => {
        const data = [];
        for (let i = 0; i < 100; i++) {
          data.push({ Id: i + 1, Name: `Item ${i + 1}` });
        }
        observer.next(data);
      }, 1000);
    });
  }
}

在component.html文件中:


  
  
  
    {{ 'Pager pageSizes' | translate }} {{'Pager itemsPerPage' | translate}} {{'

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