[英]document setAttribute ngModel Angular
I am trying create an input element from typescript to html in angular 4. But when I try put [(ngModel)]
not works. 我正在尝试从
[(ngModel)]
到html创建一个input元素,但是当我尝试使用[(ngModel)]
不起作用。 How I do that method ? 我该怎么做? Someone know how ?
有人知道吗?
createElement() {
this.input = document.createElement('input');
this.input.setAttribute('matInput', '');
this.input.setAttribute('placeholder', 'Tema');
this.input.setAttribute('[(ngModel)]', 'module.theme');
this.input.setAttribute('name', 'theme');
return (<HTMLDivElement>(document.getElementById('ejemplo').appendChild(this.input)));
}
Something like 就像是
this.input.setAttribute('[(ngModel)]', 'module.theme');
is not supposed to work. 不应该工作。 Property/attribute bindings and component/directive instantiation only happens for markup added to a components template statically.
属性/属性绑定和组件/指令实例化仅针对静态添加到组件模板的标记发生。
If it is added dynamically it won't have any effect. 如果动态添加,它将没有任何效果。 If you need this, you can create and compile a component at runtime and add that component dynamically (to a statically defined
ViewContainerRef
). 如果需要,可以在运行时创建和编译组件,然后将其动态添加(到静态定义的
ViewContainerRef
)。
Alternatively you can use imperative code to update the DOM. 或者,您可以使用命令性代码来更新DOM。
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