Making a selection from an AJAX dropdown extender appear in a textbox inside a repeater in ASP.NET / Javascript

I'm trying to make an AJAX dropdownextender selection (from a list box) that is inside a repeater control, populate the relative text box when a selection is made.

<asp:TextBox ID="tbSeparator" Text=<%#Eval("Separator")%> runat="server" Wrap="False" Width="176" Font-Names="Verdana" ForeColor="#666666"></asp:TextBox>
   <cc1:DropDownExtender ID="ddeSeparator" DropDownControlID="lbSeparator"
        runat="server" DynamicServicePath="" Enabled="True" TargetControlID="tbSeparator"
        HighlightBackColor="WhiteSmoke">
    </cc1:DropDownExtender>
        <asp:ListBox ID="lbSeparator" runat="server"
        CssClass="alwaysontop" OnTextChanged="UpdateSeparator" Height="85px">
</asp:ListBox>

Open in new window


How do I do this?
TIA
Mike MillerSoftware EngineerAsked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

x
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Jitendra PatilSr.Software EngineerCommented:
try the below link code it displays the correct usage of dropdown extender
AJAX Control Toolkit Dropdown Extender Tutorial ASP.NET C#

here's another one
How to use DropDownExtender in asp.net ajax


hope this helps.
Mike MillerSoftware EngineerAuthor Commented:
Thanks. I'm able to utilize the dropdown extender, no problem. It's when it's inside a repeater is when I'm running into problems. Also, your links show how to make this happen in the code behind. Per my title, I'm trying to do this on the client side. Thanks again.
Jitendra PatilSr.Software EngineerCommented:
can you share your javascript code here?
Determine the Perfect Price for Your IT Services

Do you wonder if your IT business is truly profitable or if you should raise your prices? Learn how to calculate your overhead burden with our free interactive tool and use it to determine the right price for your IT services. Download your free eBook now!

Mike MillerSoftware EngineerAuthor Commented:
<script type="text/javascript">
    function closest(ele, className) {
        do {
            ele = ele.parentNode;
            if (ele.className !== undefined && ele.className.indexOf(className) > -1) {
                return ele;
            }
        } while (ele.className !== undefined);
        return null;
    }
    	window.popit = function popit(ele) {
        var de = closest(ele.parentElement, 'entrye');
	de.getElementById("tbSeparator").innerHTML = this.options[this.selectedIndex].text;
    }
</script>

Open in new window


This is one of may variations I've been trying
Mike MillerSoftware EngineerAuthor Commented:
Ok got this one figured out. Here is my JS:

<script type="text/javascript">
    function closest(sep, className) {
        do {
            sep = sep.parentNode;
            if (sep.className !== undefined && sep.className.indexOf(className) > -1) {
                return sep;
            }
        } while (sep.className !== undefined);
        return null;
    }
    window.populate_sep = function populate_sep(sep) {
        var dms = closest(sep.parentElement, 'entry');
        dms.getElementsByClassName("tbSeparator")[0].value = sep.options[sep.selectedIndex].text;
    }
</script>

Open in new window


And I had to change some of the HTML...
(Inside the repeater)
<asp:TextBox ID="tbSeparator" Text=<%#Eval("Separator")%> runat="server" Wrap="False" Width="176" Font-Names="Verdana" ForeColor="#666666" Class="tbSeparator" Name="tbSeparator"></asp:TextBox>
   <cc1:DropDownExtender ID="ddeSeparator" DropDownControlID="lbSeparator"
        runat="server" DynamicServicePath="" Enabled="True" TargetControlID="tbSeparator"
        HighlightBackColor="WhiteSmoke">
    </cc1:DropDownExtender>
        <asp:ListBox ID="lbSeparator" runat="server" Class="lbSeparator" Name="lbSeparator"
        CssClass="alwaysontop" Height="85px" onclick="populate_sep(this)">
</asp:ListBox>

Open in new window

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
Jitendra PatilSr.Software EngineerCommented:
glad to know you got the solution,
sorry for the delay,  couldn't get back to you.
Mike MillerSoftware EngineerAuthor Commented:
Figured it out
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
JavaScript

From novice to tech pro — start learning today.