CustomValidator 不需要设置其 ControlToValidate 属性，因此
我刚刚读完 CustomValidator 控件，我有一个问题。在我正在阅读的书中，它说 CustomValidator 不需要设置其 ControlToValidate 属性，并给出了一些该用法的示例。但在一个未使用 ControlToValidate 的示例中，OnServerValidate 函数有一个计时器（5 秒），您需要通过在文本框中输入“答案”来击败该计时器。如果您花费的时间超过 5 秒，则 CustomValidator 的错误消息会在文本框旁边弹出（这就像一个定时问答游戏）。 CustomValidator 如何知道将消息放置在文本框旁边（据我所知，两者之间没有关联）？我想对此进行测试，因此我在页面上添加了几个文本框，并且错误消息始终显示在我放置在页面上的最后一个文本框旁边。谢谢。
I've just finished reading up on the CustomValidator control and I have a question. In the book I'm reading, it says that a CustomValidator doesn't need to have it's ControlToValidate property set and it gives a few examples of that usage. But in one example where ControlToValidate isn't used, the OnServerValidate function has a timer (5 seconds) that you need to beat by entering your 'answer' into a textbox. If it takes you longer than 5 seconds, the CustomValidator's error message pops up next to the textbox (it's like a timed question/answer game) . How did the CustomValidator know to place the message next to the textbox (there's no association between the two, that I know of)? I wanted to test this, so I put a couple more textboxes on the page and the error message always showed up next to the last textbox I placed on the page. Thanks.
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错误消息显示在
CustomValidator控件的位置，它与TextBox的位置无关。另外，如果页面上有ValidationSummary控件，它也会显示在那里。The error message shows up at the location of the
CustomValidatorcontrol, it has nothing to do with the location of theTextBox. Also, if you have aValidationSummarycontrol on the page, it shows up there as well.