如何将数据发送到另一个基因剔除模型？

debugcn 发表于 Dev

日本汽车协会

我想将数据发送到另一个基因剔除视图模型。例如，用户转到带有项目列表的页面。然后每个项目都有一个链接。如果用户单击链接，则下一页将具有例如值。列表项的编号为3。下一页的值为3。

我吓到了，但失败了

methods.initialize = function() {
    var self = this;
    self.setupSubscriptions();
    self.update(true);
    Utils.ajaxPost('getMyOrganizations',{"data":""},function(result){
        result = JSON.parse(result);
        if(_.isArray(result)){
            _.each(result,function(obj){
                self.organizations.push([obj["organization_name"],3,3,obj['id']]);
            });
        }
    });

};
methods.setupSubscriptions = function() {
    var self = this;
    self.update.syncWith('selectedOrg',true);
};

还有另一种模式

methods.initialize = function() {
    var self = this;
    self.setupSubscriptions();
};
methods.setupSubscriptions = function() {
    var self = this;
    self.update.subscribeTo('selectedOrg', function(newUser){
        if(newUser){
           //Do the logic here
            self.update = true;
        }
    });
};

马廷·卡贾巴迪

一种简单的方法是在主视图模型内创建第二个视图模型的新实例作为可观察变量，然后可以轻松地在视图模型之间进行通信。

下面我仅向您展示可以使用的逻辑。

范例：https : //jsfiddle.net/kyr6w2x3/67/

HTML：

<ul data-bind="foreach:Items">
  <li>
  <span data-bind="text:item">
  </span>
  <a data-bind="click:$parent.LinkClicked,text:'ClickOnME'">

  </a>
  </li>
</ul>
<div data-bind="text:MessageFromSecondVM">

</div>
<hr>
<div data-bind="with:SecondVM">
  <h3 data-bind="text:SecondVMVariable">
  </h3>
</div>

JS：

function FirstViewModel() {
    var self = this;
    self.SecondVM = ko.observable();
    self.FirstVMVariable = ko.observable();
    self.MessageFromSecondVM = ko.observable();
    self.Items = ko.observableArray([{item:"Item 1" ,value :1},{item:"Item 2" ,value :2},{item:"Item 3" ,value :3}]);

  // you can create a new instance whenever you want in your model
    self.SecondVM(new SecondViewModel());

    self.LinkClicked = function(item){
        self.SecondVM().SecondVMVariable("Value " + item.value + " sent to SecondVM From FirstVM");
    self.SecondVM().Value(item.value);

  }
}
function SecondViewModel() {
    var self = this;
    self.SecondVMVariable = ko.observable();
    self.Value = ko.observable();
    self.Value.subscribe(function(newValue){
     if(newValue){
     FirstVM.MessageFromSecondVM("Value " + newValue + " was sent back from SecondVM here");
    }
  })
}
var FirstVM = new FirstViewModel()
ko.applyBindings(FirstVM);