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如何捕获并了解 AjaxSubmitLink 或 AjaxButton 上的错误?我有覆盖 onError 方法的参数不会告诉我发生了哪些错误。我调试了所有组件的验证,它们都成功了。如果主表单中有另一个表单(有几个面板需要一个表单来捕获和思考 textarea 和输入值以进行更新),则可能是一个问题。