?
Solved

Submit event causes IE error with RadioButtonList validation

Posted on 2006-11-19
4
Medium Priority
?
383 Views
Last Modified: 2008-01-09
Hello All

I have a submit_button on a form with multiple RadioButtonList Validations like below.

<asp:RadioButtonList ID="radio2" runat="server" AutoPostBack="True" OnSelectedIndexChanged="showOther">
    <asp:ListItem Text="Word of mouth" Value="Word of mouth" />
    <asp:ListItem Text="Internet search" Value="Internet search" />
    <asp:ListItem Text="Advertising" Value="Advertising" />
    <asp:ListItem Text="TSEAP leaflet" Value="TSEAP leaflet" />
    <asp:ListItem Text="Other" Value="Other"/>
    </asp:RadioButtonList>
    <span id="span2" runat="server" visible="false">(please specify) <asp:TextBox runat="server" ID="txt2Other" /></span>
    <asp:RequiredFieldValidator ControlToValidate="radio2" ID="val2" runat="server" ErrorMessage="*Required" SetFocusOnError="true" />

It just calls a script on postback and shows the "span" tag if the "Other" radio is selected.

when I test the page and click the submit_form button it will highlight all the radiobutton groups that were not filled in. (GREAT!)

then, if I click on a radio button group that has a "OnSelectedIndexChanged" function, (like the one above) it will turn off ALL of the red validation text on ALL the groups and cause an error when the form is submitted without "ALL" of the groups checked.

I think something is happening in my showOther() function that is called on postback which turns all of my errors off:

    Protected Sub showOther(ByVal sender As Object, ByVal e As System.EventArgs)
        If radio2.SelectedValue = "Other" Then
            span2.Visible = True
        Else
            span2.Visible = False
        End If
    End Sub

Any ideas as to why the validation generates an error instead of flagging the radio groups that still don't have a selection?

Many thanks in advance.

Cheers
Don
0
Comment
Question by:donaldcroswell
  • 2
  • 2
4 Comments
 
LVL 12

Expert Comment

by:sandip132
ID: 17976582
What error you are getting ?
0
 

Author Comment

by:donaldcroswell
ID: 17976641
Hi Sandip

First I get the:
Internet Explorer has encountered a problem and needs to close.  We are sorry for the inconvenience.


Then I get:
The instruction at "0x7470b439" referenced memory at "". The memory could not be "read".
Click on OK to terminate the program

Thanks
Don
0
 
LVL 12

Accepted Solution

by:
sandip132 earned 2000 total points
ID: 17976659
This seems problem with your IE/Or other application. You could try to remove and reinstall IE or the application in whose exe the error is occuring.

If IE is working fine. try using Panel control instead of SPAN.

I have tested same application on my PC with Panel control... works fine.

HTML:
<asp:radiobuttonlist id="RadioButtonList1" style="Z-INDEX: 101; LEFT: 272px; POSITION: absolute; TOP: 64px"
                              runat="server" AutoPostBack="True">
                              <asp:ListItem Value="Op1">Op1</asp:ListItem>
                              <asp:ListItem Value="Op2">Op2</asp:ListItem>
                              <asp:ListItem Value="Op3">Op3</asp:ListItem>
                              <asp:ListItem Value="Others">Others</asp:ListItem>
                        </asp:radiobuttonlist>
<asp:Panel id="Panel1" style="Z-INDEX: 102; LEFT: 360px; POSITION: absolute; TOP: 136px" runat="server"
                              Height="32px" Width="296px" visible="False">Please Specify
<asp:TextBox id="txt2Other" runat="server"></asp:TextBox></asp:Panel>

And the code behind:

    Private Sub RadioButtonList1_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles RadioButtonList1.SelectedIndexChanged
        If RadioButtonList1.SelectedValue = "Others" Then
            Panel1.Visible = True
        Else
            Panel1.Visible = False
        End If
    End Sub

0
 

Author Comment

by:donaldcroswell
ID: 17976672
Hey

That saved me lots of time!

I would have never thought of that and don't understand really why it works now but your help is very much appreciated.

Cheers
Don
0

Featured Post

Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Just a quick little trick I learned recently.  Now that I'm using jQuery with abandon in my asp.net applications, I have grown tired of the following syntax:      (CODE) I suppose it just offends my sense of decency to put inline VBScript on a…
The article shows the basic steps of integrating an HTML theme template into an ASP.NET MVC project
How can you see what you are working on when you want to see it while you to save a copy? Add a "Save As" icon to the Quick Access Toolbar, or QAT. That way, when you save a copy of a query, form, report, or other object you are modifying, you…
Is your organization moving toward a cloud and mobile-first environment? In this transition, your IT department will encounter many challenges, such as navigating how to: Deploy new applications and services to a growing team Accommodate employee…
Suggested Courses
Course of the Month9 days, 7 hours left to enroll

621 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question