Microsoft's predefined validators do not know how to sense a value in
another control before enabling themselves.
A custom validator will let you write this but you have to recreate the
logic of the original validator that you are replacing, including on the
client-side.
I build a replacement to Microsoft's validators designed to get the job
done, even difficult tasks like this. "Professional Validation And More"
(
http://www.peterblum.com/vam/home.aspx) includes 22 validators. All have a
new property, Enabler, where you setup a rule that enables them. In your
case, the rule is to check if tBPN has text. It supports client-side
validation on many more browsers too, not just IE and IE/Mac.
Even if you aren't looking for a replacement, it helps to know the
limitations of the controls you are using to make better design decisions. I
put together a list at
http://www.peterblum.com/vam/valmain.aspx.
--- Peter Blum
www.PeterBlum.com
Email:
Creator of "Professional Validation And More" at
http://www.peterblum.com/vam/home.aspx
"Mark Sandfox" <> wrote in message
news:BqXvd.5840$ m...
>I have a tricky control validation issue. I have probably designed this
>the
> wrong way but here is what I have.
>
> I have 6 TextBoxes; tbPN, tbA, tbC, tbS, tbZ, tbDOB and there are 20 of
> each
> with a corresponding number following the names. (Couldn't get ASP.NET to
> recognize a control array)
>
> The question is: How do I get the tbA, tbC, tbS, tbZ, & tbDOB to be
> required if (AND ONLY IF) tbPN has text? I have tried in the past to get
> VBScript to intertwine with ASPX but to no avail. I must be missing the
> bigger picture here. Thank you in advance for your help and guidance.
>
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