可以使用ag-grid中的GroupingModule和CustomAggregation来创建自定义分组函数。以下是一个使用JavaScript编写的示例:
import {Grid, GridOptions} from 'ag-grid-community'; import {ClientSideRowModelModule} from '@ag-grid-community/client-side-row-model'; import {SetFilterModule} from '@ag-grid-enterprise/set-filter'; import {MenuModule} from '@ag-grid-enterprise/menu'; import {GroupingModule} from '@ag-grid-enterprise/grouping'; import {CustomAggregation, IAggFunc} from '@ag-grid-community/core';
class CustomAggFunction implements IAggFunc {
public keys: string[] = [];
public label: string = 'Custom';
public init(): void {
}
public aggFunction(values: any[]): any {
var result: any = null;
values.forEach(function (value) {
if (value != null && value != undefined) {
if (result == null) {
result = value;
} else {
result += value;
}
}
});
return result;
}
public getGui(): HTMLElement {
var eGui: HTMLElement = document.createElement('div');
eGui.innerHTML = `
${this.label}:
`;
return eGui;
}
}
const gridOptions: GridOptions = { columnDefs: columnDefs, rowModelType: 'clientSide', rowGroupPanelShow: 'always',
modules: [
ClientSideRowModelModule,
SetFilterModule,
MenuModule,
GroupingModule
],
customAggregations: {
'sum': CustomAggFunction
}
};
通过这种方式,您就可以创建自定义分组函数并在ag-grid中使用它。