我有一个类似的问题 -
Master Toggle for checkbox not working in multiple expanded Mat-Table rows .
但是这里没有使用 this.usersdataSource[element.Id] = new MatTableDataSource(res);
,而是将其用作 element['usersdataSource'] = new MatTableDataSource(res);
现在在解决方案中我看到使用了 selectionMap -
userSelectionMap: Map<number, SelectionModel<any>> = new Map<number,SelectionModel<any>>();
UserMasterToggle(elementId: number) {
this.isAllUserSelected(elementId)
? this.userSelectionMap.get(elementId).clear()
: this.usersdataSource[elementId].data.forEach(row =>
this.userSelectionMap.get(elementId).select(row)
);
}
isAllUserSSelected() {
const numSelected = this.userSSelection.selected.length;
const numRows = this.leftPanelDataSource.data.length;
return numSelected == numRows;
}
当我将数据源值分配给像 userSelectionMap: Map<number, SelectionModel<any>> = new Map<number,SelectionModel<any>>();
这样的元素值时,我应该如何使用 element['usersdataSource'] = new MatTableDataSource(res);
I have working stackblitz link for my issue - 任何人都可以帮忙
谢谢