ASP.NET:自定义验证器不起作用！

问题描述

大家好！

我似乎遇到了一个非常普遍的问题，关于这个问题，我已经在Google上搜索了多个小时，但是找不到解决方案...

我在ASP.NET中的Custom-Validator无法正常工作！

Hello everybody!

I seem to have a very common problem, about which I have Googled for many hours now, but could not find a solution...

My Custom-Validator in ASP.NET just won''t work!

<asp:CustomValidator
    id="cusvalISBN"
    runat="server"
    ControlToValidate="txtISBN"
    Display="Dynamic"
    ErrorMessage="This ISBN already exists"
    OnServerValidate="isbnDuplication"
    ValidateEmptyText="True">
</asp:CustomValidator>

我的C#代码中的函数从未被触发过.我已经尝试调试，并且所有内容，即使"cusvalISBN.Validate()"也不会调用该函数...

我已经将此验证器与Requiredfieldvalidator结合使用.因此，空文本是不可能的！奇怪的是:几天前我在另一个页面上已经遇到了相同的问题……几个小时后，它突然起作用了.我可以重现为使其起作用而进行的更改.新代码仅被复制和粘贴，但无法正常工作:-(

有什么想法吗?

The function in my C# code is just NEVER being fired. I have tried debugging and everything, even "cusvalISBN.Validate()" does NOT call the function...

I am already using this validator in combination with a Requiredfieldvalidator. So empty text is not possible! The weird thing is: I already had the same problem a few days ago on another page... after some hours, it suddenly worked. I could reproduce the change I had done to make it working. The new code is just copied and pasted and yet, it isn''t working :-(

Any ideas??

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