如何显示带有ag-grid的行序数

Question

尝试使用ag-grid库显示行的索引（＆＃34;序号＆＃34;）。

根据序号，我只是指从上到下计数的行号（根据拖动＆＃39; drop或已应用的任何排序重新排序）。

即。根据附上的截图，我想看看保时捷指数= 0，丰田= 1，福特= 2，拖累＆＃34;保时捷＆＃34;到顶部（参见＆＃39;之前＆＃39;）。但他们指数在重新排序时似乎没有重新计算。

以下是我尝试过的内容（请参阅_getIndexValue）：

import { Grid, GridOptions, ColDef } from "ag-grid/main";
import { ValueGetterParams } from "ag-grid/dist/lib/entities/colDef";

// for ag-grid-enterprise users only
import 'ag-grid-enterprise/main';

import "ag-grid/dist/styles/ag-grid.css";
import "ag-grid/dist/styles/ag-theme-balham.css";

class SimpleGrid {
    _getIdValue(args: ValueGetterParams): any {
        return args.node.id;
    }

    _getIndexValue(args: ValueGetterParams): any {
        return args.node.rowIndex;
    }    

    private gridOptions: GridOptions = <GridOptions>{};

    constructor() {
        this.gridOptions = {
            columnDefs: this.createColumnDefs(),
            rowData: this.createRowData(),
            rowDragManaged: true,
        };

        let eGridDiv:HTMLElement = <HTMLElement>document.getElementById('myGrid');
        new Grid(eGridDiv, this.gridOptions);
    }

    // specify the columns
    private createColumnDefs(): ColDef[] {
        return [
            {headerName: "Index", valueGetter: (args) => this._getIndexValue(args), rowDrag: true},            
            {headerName: "ID", valueGetter: (args) => this._getIdValue(args)},
            {headerName: "Make", field: "make"},
            {headerName: "Model", field: "model"},
            {headerName: "Price", field: "price"}
        ];
    }

    // specify the data
    private createRowData() {
        return [
            {make: "Toyota", model: "Celica", price: 35000},
            {make: "Ford", model: "Mondeo", price: 32000},
            {make: "Porsche", model: "Boxter", price: 72000}
        ];
    }
}

window.addEventListener("load", () => {
    new SimpleGrid();
});

我希望有比订阅dragEnd事件和强制更新索引更好的方法。

Answer 1

实施（我最初发布的）如果您订阅RowDragEnd事件＆amp;调用api.refreshCells()。从性能的角度来看，它可能并不理想，但就我的目的来说，这并不重要。