Backbone.js 中不同视图的调用方法 [英] Call methods of different views in Backbone.js

问题描述

我在 ASP.NET MVC 4 中使用了 Backbone.js.

I am using backbone.js with ASP.NET MVC 4.

我想从一个视图中调用不同视图的方法.为了让这个更容易理解，我在下面创建了一个小例子.

I want to call methods of different view from one of the view. To make this simpler to understand I have created a small example below.

这里在 MyView2 旁边的 OperationCompleted 方法中我想调用以下...

Here in the MyView2 in side the OperationCompleted method I want to call the following...

• 调用 MyView 2 的 myMethodB
• 调用 MyView 1 的 myMethodA
• 调用 AppView 的 myMethodC

我该怎么做?我暂时使用了诸如创建视图对象并调用它们之类的方法.

How do I do this ? I have temporarily used something like creating objects of view and calling them.

像这样var view1 = new MyView1();然后view1.myMethodA();，一定有更好的方法，请帮我找到它.谢谢

Something like this var view1 = new MyView1(); and then view1.myMethodA();, there has to be a better way, Please help me find it. Thanks

var MyModel = Backbone.Model.extends({
});

// View for a Main Grid
var MyView1 = Backbone.View.extend({
...
myMethodA: function(){
 // do something with View 1
}
...
});


// View for subgrid in Main Grid
var MyView2 = Backbone.View.extend({
...
myMethodB: function(){
 // do something with View 2
},
OperationCompleted: function(){
 // call myMethodB of MyView 2
 // call myMethodA of MyView 1
 // call myMethodC of AppView
}
...
});

var AppView = Backbone.View.extend({
...
myMethodC: function(){
 // do something with App View 
}
...
});

推荐答案

成功了！不得不使用聚合器模式，在下面粘贴了我如何使用它的示例示例...

Got this working ! had to use the Aggregator pattern, have pasted below a sample example of how I used it...

Backbone.View.prototype.eventAggregator = _.extend({}, Backbone.Events);

var model = Backbone.Model.extend({
});

var view1 = Backbone.View.extend({
    initialize: function () {
        this.eventAggregator.bind("doSomething_event", this.doSomething);
    },
    doSomething: function(name){
        alert("Hey " + name + " !");
    }   
});

var view2 = Backbone.View.extend({    
    callToDoSomething: function(){
        self.eventAggregator.trigger("doSomething_event", "Yasser");
    }   
});

参考资料

https://stackoverflow.com/a/11926812/1182982

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