asp.net - MVC 2 date validation only required if checkbox is checked -

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i using ef4 , asp.net mvc 2 web application. using data annotations validation.

is following possible? if so, how implement it? have checkbox, , , date. , date not required fields, when checkbox ticked , dates required fields. required error must display.

how possible?

thanks.

you need create validation attribute model class validates 3 fields.

for example, @ [fieldsmustmatch] attribute in default mvc project template.


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