角度-检查是否已选择所有选项以启用按钮 [英] Angular - Check if all options are selected to enable button

问题描述

这是一个测验应用程序，在这种情况下，我的下一个按钮将重定向到另一个页面，并且默认情况下它已禁用. 如果我选择了所有选项，则应该启用.

This is a quiz app, in this scenario my next button will redirect to another page and it's disabled by default. If I choose all the options it should enable.

注意:

我选择选项并选择正确/错误的功能运行良好，我只是无法弄清楚在选择每个选项时如何启用.

My functionality of selecting options and choosing correct/wrong is working fine, I just can't figure out how to enable when each single option is selected.

有什么帮助或建议吗? 工作演示: https://stackblitz.com/edit/angular-ivy-5qtyxy

Any help or suggestions? Working demo: https://stackblitz.com/edit/angular-ivy-5qtyxy

buttonDisabled = true;

<button class="btn-next" [disabled]="buttonDisabled">
  Next
</button>

推荐答案

我的看法是将buttonDisabled定义为吸气剂，然后评估每个问题的状态(如果其状态允许导航到下一页).

My take on this is to define the buttonDisabled as a getter and then evaluate for each question if it's status allows for the navigation to the next page...

在我的实现中，用户必须选择类型2问题的所有答案，但只能选择类型1问题的一个答案.如果这不是您想要的，请在评论中说明，这对我来说似乎是合乎逻辑的.希望对您有所帮助.

In my implementation the user has to select all of the answers of the type-2-questions, but only one answer on the type-1-questions. If this is not what you want please state so in the comments, it's just what appeared logical to me. I hope it helps you already.

有什么问题吗?只是问问.

Any questions? Just ask.

这是我的堆叠闪电战

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