angular2 常规 onclick 不更新模型

Question

I have a div created in runtime with it's onclick bind to a function of the component.

let div = document.createElement("div");
div.onclick = this.divClick;
document.getElementById("container").appendChild(div);

The click function should update the model like this:

divClick(event) {
    this.divContent = event.target.innerHTML;
}

but the view is not updated with the divContent change. (when logging the value to console it's seems to be updated)

When using the angular's (click) it works as expected.

<div (click)=divClick($event)>click me</div>

I believe the problem is related to the use of the regular onclick event, but I don't know how to solve this.

Answer 1

You need to take care where this points to when divClick is called:

Use one of:

div.onclick = (e) => this.divClick(e);

or

div.onclick = this.divClick.bind(this);

Answer 2

IF you are creating div dynamically, you should bind event to that div dynamically. This answer may help you.