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I'm developing a web form which consists of a set of TextBoxes, as per the system requirements, the users are requested to fill-up AT LEAST ONE of those TextBoxes. If RequiredFieldValidation is used, how can I achieve such requirement? Please kindly advise.

Thank you very much! William

William X
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1 Answers1

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You can use CustomValidator, you can refer to this question:

asp.net validate textbox - at least one text box must have data in

Community
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Robert
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