以前开发的时候,用的是angular4,用ngGrid的时候要求对表格中的按键进行监控,具体以下:api
1)上下左右,按方向移动位置(指编辑单元格);app
2)enter,移动到下一个可编辑单元格;angular4
3)一个数字输入框(cellEditorFramework)里双击空格键完成某个特定操做;this
注:由于后续了解到更多的便捷方法,特此将如下说明更新; spa
解决办法:code
一、光标移动blog
// 光标移动 skipNextCell = (params: any) => {
const previousCell = params.previousCellDef; const suggestedNextCell = params.nextCellDef; switch (params.key) { case KEY_DOWN: var nextRowIndex = previousCell.rowIndex - 1; if (nextRowIndex < 0) { return null; } else { return { rowIndex: nextRowIndex, column: previousCell.column, floating: previousCell.floating }; } case KEY_UP: var nextRowIndex = previousCell.rowIndex + 1; var renderedRowCount = gridOptions.api.getModel().getRowCount(); if (nextRowIndex >= renderedRowCount) { return null; } else { return { rowIndex: nextRowIndex, column: previousCell.column, floating: previousCell.floating }; } case KEY_LEFT: case KEY_RIGHT: return suggestedNextCell; default: throw "this will never happen, navigation is always on of the 4 keys above"; }
}
针对以上方法能够自定义上下左右键的行为;token
二、事件监听事件
@HostListener('keydown', ['$event']) onkeydown($event) { if (this.allowKeyboardEvent) { const focusedCell = this.detailListOptions.api.getFocusedCell(); if ($event.keyCode === Keycode.ENTER && this.detailListOptions.api && this.detailListOptions.api.getFocusedCell()) { // 把焦点移动到下一个可编辑单元格 this.focusNextEditableCell(); } else if (this.rowIndex > 0 && ($event.which === 190 || $event.which === 191) && focusedCell && focusedCell['column']['colId'] === 'remark') { if (this.timer > 1) { this.abstractKeyListen($event.which); } this.timer += 1; const that = this; setTimeout(function() { that.timer = 1; }, 300); } } }
hostListener能够用来设置快捷键;ip