javascript - 分页中的计算(显示总数 n 中的 n 到 n)

Question

primeng数据表分页计算(显示总数n中的n到n)

<小时/>

我创建了一个自定义逻辑，想要从剩余记录逻辑中显示当前记录

如果表行数为 10，总行数为 10，并且如果在第二页上，那么我可以显示如下，

显示第 20 到 30 个，共 37 个

所以我尝试在 (onPage)="onPageChange($event)" 事件中手动执行此操作

onPageChange(e) {
        console.log(e);
        let currentpageCount = parseInt(e.first.toString().charAt(0)) + 1;
        let currentPageRows = e.rows;
        this.pageinationcount = 'Showing' + (parseInt(e.first.toString().charAt(0)) * parseInt(currentPageRows)) + ' to ' + (currentpageCount * parseInt(currentPageRows)) + ' of ' + this.errorLogList.length
    }

Everything is working fine, but if my last page having only 7 records but the e.rows result is always showing 10. I know e.rows works from this input which am giving in data table as [rows]="10". But in this scenario how can we solve this??

Answer 1

这个怎么样:

let start = e.first + 1;
let end = (e.first + e.rows) > this.errorLogList.length ? this.errorLogList.length : (e.first + e.rows);
this.pageinationcount = 'Showing ' + start + ' to ' + end + ' of ' + this.errorLogList.length;

稍微改变了Aravind的示例以供引用:http://plnkr.co/edit/oWrGziGmkwXfO4aK9xOp?p=preview