问题:

With reference to below question asked in stackoverflow

Display clicked item

I have modified the fiddle created by john papa. Here is my updated fiddle

http://jsfiddle.net/6FCEe/31/

I have added New button and clicking on it i push new record.In click event of New button i have added below code

 this.NewDetail = function(){
    self.model.Things.push(new Thing(4, "Thing 4", self.model.CurrentDisplayThing)               
        );
    self.model.CurrentDisplayThing(item);
  };

But the new row doesnt show as higlighted. What should i do to make it highlighted. The new row added should be shown as higlighted in yellow color.

回答1:

If you click on the New button you will see the following error in your browser javascript console:

Uncaught ReferenceError: item is not defined

Because you don't have item in your method. In your case the item should be the newly created Thing so store it in a variable which you can name item and it will work fine.

this.NewDetail = function(){
    var item = new Thing(4, "Thing 4", self.model.CurrentDisplayThing);
    self.model.Things.push(item);
    self.model.CurrentDisplayThing(item);
  };

Here is an updated JSFIddle.

回答2:

Just trivial bug

this.NewDetail = function(){
        var item = new Thing(4, "Thing 4", self.model.CurrentDisplayThing);
        self.model.Things.push(item);
        self.model.CurrentDisplayThing(item);
      };