Angular 2提供程序的类似物 [英] Analogue of Angular 2 Provider

问题描述

我具有复选框的自定义组件。

I have a custom component for checkbox.

const CheckboxValue = new Provider(
        NG_VALUE_ACCESSOR, {
        useExisting: forwardRef(() => CheckboxComponent),
        multi: true
    });

@Component({
               ...
               providers: [CheckboxValue]
           })
export class CheckboxComponent implements ControlValueAccessor {
    ...
}

据我在RC3 Provider中所理解的，已被标记为已弃用。我该如何重写我的组件，以便他在下一次更新后能够正常工作？

As I understood in RC3 Provider was marked as deprecated. How I must rewrite my Component so that he working after next update?

推荐答案

它现在需要一个像这样的对象：

It now takes an object like:

const CheckboxValue = {
    provide: NG_VALUE_ACCESSOR, 
    useExisting: forwardRef(() => CheckboxComponent),
    multi      : true
}

更新

如果您在RC.3新表格中看到没有值访问器，请参见自定义组件绑定：

If you get "No value accessor for ''" in RC.3 new forms see Custom component binding: No value accessor for ''

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