Can I call a function after a ValidationSummary?

Question

I have a ValidationSummary on client side (which should be called by asp:LinkButton) that check my RequiredFieldValidator and CustomValidator :

<asp:ValidationSummary 
    ID="valSum" 
    runat="server" 
    CssClass="label" 
    HeaderText="There are these errors:" 
    ShowSummary="False" 
    ShowMessageBox="True" 
    EnableClientScript="True" 
    DisplayMode="BulletList">
</asp:ValidationSummary>

and I need, if there are the errors (so there are empty fields or the custom validators fail) call another javascript function.

I really hope that this is possible on .NET 3.5, right?

I've read a similar question on SO here, but is not clear at all.

score 8 · Answer 1 · answered Oct 26 '11 at 13:16

8

Place this script at the page's end:

<script type="text/javascript">
     var originalValidationSummaryOnSubmit = ValidationSummaryOnSubmit;
     ValidationSummaryOnSubmit = function (validationGroup) {
          originalValidationSummaryOnSubmit(validationGroup);

          if (Page_IsValid === false) {
               alert("boo!");
          }
     }
</script>

answered Oct 26 '11 at 13:16

Yuriy Rozhovetskiy

22,270
4
37
68

Excelent! Solved my problem! One question: `validationGroup` is the only parameter of `ValidationSummaryOnSubmit`? How can I get the name/id of the button that had trigger the validation? – Vinicius Garcia Aug 11 '15 at 14:50

Martijn B · Accepted Answer · 2011-10-26T13:45:12.707

4

Yes this is possible. You will need to change the OnClientClick property of your linkbutton and/or other controls causing the validation to perform. Also put your CausesValidation property to false.

  <asp:LinkButton ID="lnkButton1" runat="server" CausesValidation="false" OnClientClick="return DoValidation('');" ... />

Javascript function:

 function DoValidation(validationGroup) {
      var isValid = Page_ClientValidate(validationGroup);
      if (!isValid){
         isValid = DoSomethingElse();
      }
     return isValid;
 }

If you want to only validate a group you can pass the name of the group to the 'DoValidation' function.

  <asp:LinkButton ID="lnkButton1" runat="server" CausesValidation="false" OnClientClick="return DoValidation('NameOfGroup');" ... />

edited Oct 26 '11 at 13:45

answered Oct 26 '11 at 13:22

Martijn B

4,065
2
29
41

Updated the example to is not valid. Sorry for that. – Martijn B Oct 26 '11 at 13:46
It also call twice ShowBox for the Validator Summary, that's why you need a `return false;` after calling `return DoValidation('');` Anyway thanks, it works! – markzzz Oct 26 '11 at 14:04
Even if you use a CausesValidation="false". Please let me know so I can update the answer. – Martijn B Oct 26 '11 at 14:08
You could also let the DoSomethingElse return false. – Martijn B Oct 26 '11 at 14:13

Can I call a function after a ValidationSummary?

2 Answers2