AJAX 101 -- event not firing

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John Mott - 14 Sep 2007 18:49 GMT

This is a total ID-10T error, but since its my first attempt I'm missing the
obvious.

I downloaded the framework, create an AJAX enabled app, added a page, and
added an update panel with this:

<asp:UpdatePanel ID="updateCategory" runat="server">
<ContentTemplate>
<asp:CheckBox runat="server" ID="chkCategory"
OnCheckedChanged="chkCategory_OnCheck" />
</ContentTemplate>
</asp:UpdatePanel>

However, the event isn't firing on click, the events are queued until the
next page refresh. Is there a 'hey dummy' checklist? No errors, just no
events.

thanks,

john

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bruce barker - 14 Sep 2007 20:02 GMT

if you want the checkbox to post to the server when chcecked, set
AutoPostBack = true

-- bruce (sqlwork.com)

> This is a total ID-10T error, but since its my first attempt I'm missing the
> obvious.
[quoted text clipped - 16 lines]
>
> john

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John Mott - 14 Sep 2007 20:26 GMT

Thank you, that was it. I guess I assumed that putting it in a panel implied
a server hit, but it makes more sense to have the controls do what they
normally do.

John

> "bruce barker" wrote:
> if you want the checkbox to post to the server when chcecked, set
> AutoPostBack = true

> -- bruce (sqlwork.com)
>
[quoted text clipped - 18 lines]
>>
>> john

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John Mott - 14 Sep 2007 21:07 GMT

Thank you again. The next thing i found was that I can't figure out how to
pass a value back in through a checkbox. It never occurred to me before that
the <asp:checkbox> didn't have a "value" attribute, so how do you use a
checkbox to send a value (like a key value to set or clear in a collection)
back into the server?

absent this ability i'll have to implement a button and some sort of
mark/not marked state, which the checkbox is perfect for.

thanks again

john

> if you want the checkbox to post to the server when chcecked, set
> AutoPostBack = true
[quoted text clipped - 21 lines]
>>
>> john

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AJAX 101 -- event not firing

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