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Home > Forums > Programmers > Languages > C# (C sharp): Microsoft Forum

Custom Validator not preventing processing

thread732-1606891
Read More Threads Like This One
WalterHeisenberg (TechnicalUser)
4 Jun 10 13:29
Hello,

I have a wizard which has a few textboxes for customers to enter a start/stop date and a regular expression in place to ensure they enter it in the proper format. I also added a custom validator to test the date. Although the validation test is failing (confirmed by responsewriting args.IsValid) the page proceeds to fire the wizard_nextbuttonclick  event which writes to db and blows up since there is bad data. Any help would be greatly appreciated!

Here is code (omitting non-relevant stuff):

aspx:

CODE

<asp:CustomValidator ID="CustomValidator1" runat="server" ErrorMessage="Date fields do not have valid values." OnServerValidate="CustomValidator1_ServerValidate"></asp:CustomValidator>

code behind:

CODE

  protected void CustomValidator1_ServerValidate(object source, ServerValidateEventArgs args)
    {      
        if (DateTime.TryParse(startDate, out datetime) == true && DateTime.TryParse(endDate, out datetime2) == true)
        {
            args.IsValid = true;
        }
        else
        {
            args.IsValid = false;
        }
     }
ChewDoggie (Programmer)
6 Jun 10 13:49
In the 'wizard_nextbuttonclick' Event, you should have some code that looks like this:

CODE

if (CustomValidator1_ServerValidate.IsValid)
    {
    // Submit the Form
    }
else
    {
    // Don't Submit the Form
    }

HTH

Chew
 

10% of your life is what happens to you.  90% of your life is how you deal with it.

ChewDoggie (Programmer)
6 Jun 10 13:54
DOH ! Sorry, it should be:

CODE

if (CustomValidator1.IsValid)
    {
    // Submit the form
    }
else
    {
    // Don't Submit the form
    }

C.

10% of your life is what happens to you.  90% of your life is how you deal with it.

WalterHeisenberg (TechnicalUser)
6 Jun 10 18:08
Thanks very much. This did the trick. For some reason I was under the impression the custom_validator control would cancel the request inherently if it failed.
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