敲除错误-未捕获错误:无法解析绑定. [英] knockout error - Uncaught Error: Unable to parse bindings.

问题描述

运行剔除代码时出现以下错误: 未捕获的错误:无法解析绑定. 消息:ReferenceError:度量未定义； 绑定值:模板:{名称:"measureDispTmpl"，foreach:度量，如:食品"}

I get the following error when running my knockout code: Uncaught Error: Unable to parse bindings. Message: ReferenceError: measures is not defined; Bindings value: template: { name: 'measureDispTmpl', foreach: measures, as: 'food' }

您可以在此处查看jsfiddle代码:

You can see the jsfiddle code here:

http://jsfiddle.net/nickbuus/eUufc/

当我单击+图标时，我希望调用addMeasure方法-以便可以向当前foodItem添加新度量并保存它.但是，当我尝试调用addMeasure时，该方法为:

When I click the + icon I want the addMeasure method to be called - so that I can add a new measure to the current foodItem and save it. But when I try to call the addMeasure then the method:

 self.addMeasure = function (myItem)  

从不被调用，并且出现上述错误.

is never called and I get the above error.

推荐答案

我更新了您的小提琴.在您的代码中，在viewModel的foodList中添加一个mesureItem. 这就是为什么食物模板不起作用的原因(因为它试图显示一个度量，而一个度量又不是度量属性).

I updated your fiddle. In your code you add a mesureItem in the foodList of the viewModel. That's why the food template doesn't work (because it tries to show an measure and a measure doesn't an measures property).

self.addMeasure = function (myItem) {
    var foodIte = self.selectedItem();
    var newItem = new MeasureItem();
    // mine 
    myItem.measures.push(newItem);
    self.selectedItem(newItem);
   // your :
   //self.list.push(newItem);
};

请参见小提琴

针对您的问题:

只需将其添加到addMeasure函数的末尾即可:

Just add this at end of the addMeasure function:

self.selectedItem(newItem);

希望对您有帮助.

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