在組件回調函數里面，如何訪問當前組件的屬性，角度為2？

Question

我有兩個組件： listComponent.ts和changeStatusComponent.ts ，它們與列表頁面listComponent.html和狀態修飾符頁面changeStatusComponent.html關聯 ， listComponent.html頁面具有一個表，其中每行都有一個修改后的狀態按鈕，彈出按鈕被點擊時ChangeStatusComponent.html頁面，修改狀態並稍后保存時，listComponent.html頁面通過自動更新修改（ 而不是刷新頁面 ）

問題 ：請參閱評論部分

listComponent.ts

changeLevel(item: any){
    let res = this.dialog.open(ChangeLevelComponent);
    res.componentInstance.userId = item.userId;
    res.componentInstance.cb = function(item: any){
        //item is Modified object({userId:xxx, level: xxx}).

        /*
        I want to find the corresponding record by item.id 
        and then modify the level attribute of the record.

        But here I can not access the xxx component properties 
        (datas - user binding listComponent.html page table target)
        */

        //changeLevel method inside this can only access the properties 
        //of the ChangeLevelComponent component 

        /*
        Here's how to access the listComponent component's properties, 
        which are used to bind to the xxx.html table
            */

    };
}

Answer 1

我找到了答案。

changeLevel(item: any){
    var self = this;
    let res = this.dialog.open(ChangeLevelComponent);
    res.componentInstance.ffClassId = item.ffClassId;
    res.componentInstance.cb = (item: any) => {

        console.log(self.listService.list);


    };

}