Re: A question about asp.net Validator
From: Jason Brown [MSFT] (i-brjaso_at_online.microsoft.com)
Date: 01/18/05
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Date: Tue, 18 Jan 2005 16:48:39 +1100
Hi Nicky,
it's probably best to direct ASP.NET questions to
microsoft.public.dotnet.framework.aspnet rather than to this group, which is
'classic' ASP focussed. You'll get a pretty quick answer there.
--
Jason Brown
Microsoft GTSC, IIS
This posting is provided "AS IS" with no warranties, and confers no
rights.
"Nicky" <Nicky@discussions.microsoft.com> wrote in message
news:3A7DECB8-DDAF-499A-B609-B8D0CAAC838F@microsoft.com...
>I am new on asp.net programming.
> Here I got a problem about validator
> I want to write a login.aspx page, for example, there is UserName box. I
> need to validate two things on UserName box,
> 1. It must be filled. If it is empty, I will show a red message right
> after
> this box, like "UserName is empty!"
> 2. It must be a valid user in our database. So on server side, we will
> check
> this UserName in our database. If it is not in our database, we will show
> something like "Invalid user name..."
> I know it is very easy to do the 1st rule with the RequireFieldValidator.
> But in order to do the rule 2, I need to put a Lable at the same place
> where
> the validator is. Right? But the two won't stay at the same place. So I
> tried
> to use a CustomValidator, and write the ClientValidationFunction like
> this:
> <script language="javascript">
> function ValidUserName(oSrc, args) //For rule 1
> {
> if(args.Value.length > 0)
> args.IsValid = true;
> else
> args.IsValid = false;
> }
> </script>
> And also, I have a server validate function which will process the rule 2.
> But the problem is the client validate function never get called. So , do
> you guys have better solution for this? I really appreciated.
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