EmberJS:如何在选择更改时呈现模板

Question

我是ember的新手,我正试图弄清楚当select控件发生变化时如何渲染模板.

码:

    App.LocationTypeController = Ember.ArrayController.extend({

    selectedLocationType: null,

    locationTypeChanged: function() {
        //Render template
    }.observes('selectedLocationType')
});

{{view Ember.Select 
  contentBinding="model"
  selectionBinding="selectedLocationType"
  optionValuePath="content.id"
  optionLabelPath="content.name"}}

当locationType更改时,将在控制器中触发locationTypeChanged函数.但是如何从那里将一些内容渲染到dom中呢？(this.render()？)...

Answer 1

是的你必须this.render()只使用,但这里的关键是into它里面的选项.

App.LocationTypeController = Ember.ArrayController.extend({

 selectedLocationType: null,

 locationTypeChanged: function() {
    var selectedLocationType = this.get('selectedLocationType');
    this.send('changeTemplate',selectedLocationType);
 }.observes('selectedLocationType')
});

在你的路线中采取行动

changeTemplate: function(selection) {
          this.render('template'+selection.id,{into:'locationType'});
 }

并{{outlet}}在你locationType的模板中有一个.

{{view Ember.Select 
       contentBinding="model"
       selectionBinding="selectedLocationType"
       optionValuePath="content.id"
       optionLabelPath="content.name"}} 

{{outlet}}

根据您的要求提供JSBin示例