Solved

how to trigger a modal popup extender ajaxcontrol to a dropdownlist event?

Posted on 2008-06-18
4
5,062 Views
Last Modified: 2013-11-07
hi there,
im buiding a website on visual studio 2008. and at my usercontrol i have a dropdown list  which has a ModalPopupExtender.
<cc1:ModalPopupExtender ID="dropDownList1_ModalPopupExtender" runat="server"
                DynamicServicePath="" Enabled="True" TargetControlID="dropDownList1"
                    PopupControlID="Panel1"
                    BackgroundCssClass="modalBackground"
                    DropShadow="true"
                    OkControlID="dropDownList1"
                    OnOkScript="showPopup()"
                    CancelControlID="Cancel_Button" >
            </cc1:ModalPopupExtender>

i have followed the example on asp.net ajax control toolkit webisite,  url bellow. http://www.asp.net/AJAX/AjaxControlToolkit/Samples/ModalPopup/ModalPopup.aspx

Right now, when the website is running soon as i click at the dropdownlist the panel("panel1") pops up. HOWEVER, i  want is that the panel ("panel1") to be displayed ONLY when the dropdownlist ("dropdowList1") SELECTEDI INDEX IS CHANGED.

can anyone help?
thanks
0
Comment
Question by:RachelDosSantos
  • 2
  • 2
4 Comments
 
LVL 2

Expert Comment

by:JZoerman
ID: 21824305
Insert a HiddenField object on the page and set it at the target control for the ModalPopupExtender.

Set AutoPostBack on your DropDownList to True

In the SelectedIndexChanged event call the .Show() method for the ModalPopupExtender
<cc1:ModalPopupExtender ID="dropDownList1_ModalPopupExtender" runat="server" 
                    DynamicServicePath="" 
                    Enabled="True" 
                    TargetControlID="HiddenField1"
                    PopupControlID="Panel1" 
                    BackgroundCssClass="modalBackground"
                    DropShadow="true" 
                    CancelControlID="Cancel_Button" >
        </cc1:ModalPopupExtender>
 
 Protected Sub DropDownList1_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles DropDownList1.SelectedIndexChanged
        dropDownList1_ModalPopupExtender.Show()
    End Sub

Open in new window

0
 

Author Comment

by:RachelDosSantos
ID: 21863534
hi there,
yeah adding a HiddenField and using it as a targetControl ID, sort of works. But i was thinking of poping up this new window(panel1) without having to post it back to the server.

 Also using this way my javaScript function "showPopup"(ModalPopupExtender property:OnOkScript="showPopup ()"), which passes the value of the usercontrol's dropdownList to the panel's dropdownList doesnt work..

any ideas?
0
 
LVL 2

Accepted Solution

by:
JZoerman earned 500 total points
ID: 21895352
This works...
No postback, passes selected value, and shows modal popup when selected value changes.
Think that covers it, let me know,
JZ
 <script type="text/javascript">    
     function ShowModalPopup(SelectedValue) 
     { 
        alert(SelectedValue);   
        var modal = $find('dropDownList1_ModalPopupExtender'); 
        modal.show(); 
     }
    </script>
 
 Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        DropDownList1.Attributes.Add("onChange", "ShowModalPopup(this.value)")
    End Sub

Open in new window

0
 

Author Closing Comment

by:RachelDosSantos
ID: 31468312
Excellent stuff,

Yeah that works, thank you so much. You are brilliant!!

Rachel
0

Featured Post

Announcing the Most Valuable Experts of 2016

MVEs are more concerned with the satisfaction of those they help than with the considerable points they can earn. They are the types of people you feel privileged to call colleagues. Join us in honoring this amazing group of Experts.

Question has a verified solution.

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

A long time ago (May 2011), I have written an article showing you how to create a DLL using Visual Studio 2005 to be hosted in SQL Server 2005. That was valid at that time and it is still valid if you are still using these versions. You can still re…
A publishing tool, a Version Control System, or a Collaboration Platform! These can be some of the defining words for the two very famous web-hosting Git repositories: Bitbucket and Github. Git is widely used amongst the programmers and developers f…
This video teaches users how to migrate an existing Wordpress website to a new domain.
Learn how to set-up PayPal payment integration in your Wufoo form. Allow your users to remit payment through PayPal upon completion of your online form. This is helpful for collecting membership payments, customer payments, donations, and more.

815 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

Need Help in Real-Time?

Connect with top rated Experts

11 Experts available now in Live!

Get 1:1 Help Now