Angular - 创建组件树菜单
我正在创建树菜单,从视觉上看看起来像这样:
已经根据从日期属性提取的服务中获得的一组对象创建了树。
现在,我必须获取树菜单,以显示和折叠以下:年,几个月和完整的日期,以此组件的方式: https://angular2-tree.readme.io/
理想情况下,我会用typescript做到这一点,但是如果我很难,我会尝试使用外部组件。
这是HTML代码:
<ul>
<li *ngFor="let y of tree | keyvalue">{{y.key}}
<ul>
<li *ngFor="let m of tree[y.key] | keyvalue">{{m.key}}
<ul>
<li *ngFor="let d of tree[y.key][m.key] | keyvalue">{{d.key}}
<ul>
<li *ngFor="let h of tree[y.key][m.key][d.key]"><a [ngClass]="{'hourSelected': (idSchedule === h.id || lastId === h.id),'hourUnSelected': idSchedule !== h.id}" (click)="loadMacroProcesses(h.id)">{{h.hour}}</a></li>
</ul>
</li>
</ul>
</li>
</ul>
</li>
</ul>
这将是解决方案,现在我将完善它:
<ul>
<li id="year" *ngFor="let y of tree | keyvalue; let i=index" (click)="listClick($event, i)">{{y.key}}
<ul [hidden]="indexExpandedYear!=i?true:null">
<li id="month" *ngFor="let m of tree[y.key] | keyvalue; let j=index" (click)="listClick($event, j)">{{m.key}}
<ul [hidden]="indexExpandedMonth!=j?true:null">
<li id="day" *ngFor="let d of tree[y.key][m.key] | keyvalue; let k=index" (click)="listClick($event, k)">{{d.key}}
<ul [hidden]="indexExpandedDay!=k?true:null">
<li *ngFor="let h of tree[y.key][m.key][d.key]"><a [ngClass]="{'hourSelected': (idSchedule === h.id || lastId === h.id),'hourUnSelected': idSchedule !== h.id && lastId !== h.id}" (click)="loadMacroProcesses(h.id)">{{h.hour}}</a></li>
</ul>
</li>
</ul>
</li>
</ul>
</li>
</ul>
这是打字稿方法:
listClick(event, i) {
switch (event.srcElement.id) {
case "year":
this.indexExpandedYear = this.indexExpandedYear==i?-1:i;
event.stopPropagation();
break;
case "month":
this.indexExpandedMonth = this.indexExpandedMonth==i?-1:i;
event.stopPropagation();
break;
case "day":
this.indexExpandedDay = this.indexExpandedDay==i?-1:i;
event.stopPropagation();
break;
default:
break;
}
}
您可以向我推荐一个很好的外部组件吗?谢谢。
注意:我正在使用Angular
Note的第11版:如果您部署了一年,则其余的年份应倒流。
注意:角材料对我无效
I am creating a tree menu, visually it looks like this:
The tree has been created based on an array of objects obtained from a service, extracted from a date property.
Now, I have to get the tree menu to allow displaying and collapsing the: years, months and complete dates, in the style of this component:
https://angular2-tree.readme.io/
Ideally, I'd do this with typescript, but if it's hard for me, I'd try using an external component.
This is the html code:
<ul>
<li *ngFor="let y of tree | keyvalue">{{y.key}}
<ul>
<li *ngFor="let m of tree[y.key] | keyvalue">{{m.key}}
<ul>
<li *ngFor="let d of tree[y.key][m.key] | keyvalue">{{d.key}}
<ul>
<li *ngFor="let h of tree[y.key][m.key][d.key]"><a [ngClass]="{'hourSelected': (idSchedule === h.id || lastId === h.id),'hourUnSelected': idSchedule !== h.id}" (click)="loadMacroProcesses(h.id)">{{h.hour}}</a></li>
</ul>
</li>
</ul>
</li>
</ul>
</li>
</ul>
This would be the solution, now I will refine it:
<ul>
<li id="year" *ngFor="let y of tree | keyvalue; let i=index" (click)="listClick($event, i)">{{y.key}}
<ul [hidden]="indexExpandedYear!=i?true:null">
<li id="month" *ngFor="let m of tree[y.key] | keyvalue; let j=index" (click)="listClick($event, j)">{{m.key}}
<ul [hidden]="indexExpandedMonth!=j?true:null">
<li id="day" *ngFor="let d of tree[y.key][m.key] | keyvalue; let k=index" (click)="listClick($event, k)">{{d.key}}
<ul [hidden]="indexExpandedDay!=k?true:null">
<li *ngFor="let h of tree[y.key][m.key][d.key]"><a [ngClass]="{'hourSelected': (idSchedule === h.id || lastId === h.id),'hourUnSelected': idSchedule !== h.id && lastId !== h.id}" (click)="loadMacroProcesses(h.id)">{{h.hour}}</a></li>
</ul>
</li>
</ul>
</li>
</ul>
</li>
</ul>
This is the typescript method:
listClick(event, i) {
switch (event.srcElement.id) {
case "year":
this.indexExpandedYear = this.indexExpandedYear==i?-1:i;
event.stopPropagation();
break;
case "month":
this.indexExpandedMonth = this.indexExpandedMonth==i?-1:i;
event.stopPropagation();
break;
case "day":
this.indexExpandedDay = this.indexExpandedDay==i?-1:i;
event.stopPropagation();
break;
default:
break;
}
}
Can you recommend me a good one external component? Thanks.
NOTE: I am working with version 11 of Angular
NOTE: If you deploy one year, the rest of the years should be collpased back.
NOTE: Angular material is not valid for me
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您可以添加一个参数以供可见性,然后单击事件到父级UL。它的工作方式是,他们将对它们具有布尔值,以使其可见性,当您单击顶部UL元素时会改变。您将拥有一种方法,该方法只能在true/false之间切换,如果false隐藏,则可以在true/false之间进行切换。点击事件应放在最高的LI元素上,并在其孩子身上可见性。
You could add a parameter for visibility and click event to the parent ul. How it would work is that they would have a boolean value on them for visibility that would change when you click the top ul element. You would have a method that would just switch between true/false and display if true hidden if false. Click event should be on the top li element and visibility on its child.
您应该检查Primeng提供的树成分。它具有自己的数据格式,可以在其上进行自己的自定义。
You should checkout the tree component provided by primeng. It has its own data format and can do your own customisation on top it.