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Old February 1st, 2005, 06:58 PM
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Default CustomValidator won't fire method


I'm trying to use a CustomValidator to run a method to check whether a username is already in the database. I can't seem to get the method to fire though. Here's the tag for the component:

<asp:CustomValidator id="CustomValidator1" runat="server" CssClass="errorText" ForeColor=" " ErrorMessage="&raquo; Username already used" ControlToValidate="username" OnServerValidate="usernameValidate"></asp:CustomValidator>

and here's my code for usernameValidate:

public void usernameValidate(object source, ServerValidateEventArgs args)
   if (BLUser.getInstance().getUser(username.Text) == null)
      args.IsValid = true;
      args.IsValid = false;


I've tried making the method set args.IsValid to false all the time but still doesn't work, doesn't look like the method is firing. I've also tried setting the OnServerValidate in the code behind but still doesn't work. Any ideas why?


Old February 2nd, 2005, 12:46 AM
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Check in the @Page Directive whether you have set ValidateRequest attribute to false.

Old February 2nd, 2005, 05:59 AM
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Nope still doesn't work

Old February 3rd, 2005, 09:51 AM
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CustomValidator doesn't work for empty fields(use a RequiredFieldValidator in addition).

software engineering student.
Looking for a good job for summer 2005.
Old August 4th, 2009, 05:37 AM
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Use the property, ValidateEmptyText="true" to make it work. :)

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