列出 Orbeon 表单中所有无效控件
我的表单中有 30 个字段。在表单的底部有一个按钮，如果单击它，它应该显示所有无效的字段。无效还包括未填写必填字段。
使用xforms:trigger我可以创建一个按钮，使用DOMActivate甚至我可以编写xforms:action。但是我应该在 xforms:action 中写什么来列出所有无效字段。
I have 30 fields in my form. At the bottom of the form I have a button where if I click on it, it should display all the fields which are invalid. Invalid includes not filling the mandatory fields also.
Using xforms:trigger I can create a button and using DOMActivate even I can write xforms:action. But what should I write inside the xforms:action to list all invalid fields.
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您可以通过侦听
xforms-valid和xforms-invalid等事件来实现自己的错误摘要，跟踪哪些控件有效和无效。但这不是一项简单的任务，特别是如果您想处理重复，甚至嵌套重复。幸运的是，这项工作已经为您完成，并且代码已放入可重用组件中：如果您使用 Form Runner，则默认情况下会为您设置错误摘要。否则，请参阅此文档，了解如何使用错误摘要组件。
You can implement your own error summary by listening to events like
xforms-validandxforms-invalid, keeping track of which controls are valid and invalid. But this is not a trivial task, especially if you want to handle repeats, and even nested repeats. Fortunately, this work has been done already for you, and the code has been put in a reusable component:<fr:error-summary>.If you are using Form Runner, the error summary is setup for you by default. Otherwise, see this documentation on how to use the error summary component.