I read that this method:



<script type="text/javascript" language="javascript">

alert($get('<%= CheckTxt.ClientID%>').value)

</script>



Can be used instead of:



alert(document.getElementById("TabContainer1_TabPa nel5_FormView8_CheckTxt").value)





But I receive a CheckTxt not Declared error, any suggestion as to how to
implement this?



Thanks

John

Hi John,

The purpose of using <%= CheckTxt.ClientID %> is to output a dynamic id of
the control CheckTxt at run-time. To make ASP.NET compiler recognize
CheckTxt, you must have a control with ID "CheckTxt" at the direct child
control hierarchy of current container (Page class or UserControl according
to the context).

If you're having other INamingContainer between this control and the root
container (for example, you're defining a control with id "CheckTxt" within
an ITemplate such as ItemTemplate), the compiler will not be able to refer
to the control directly using reference "CheckTxt".

You can use ClientScript.RegisterStartupScript or RegisterScriptBlock to
generate the javascript functions at run-time; at that time if you could
get a reference to a control (using FindControl), then you can use its
ClientID property to build the javascript.

Regards,
Walter Wang (wawang (AT) online (DOT) microsoft.com, remove 'online.')
Microsoft Online Community Support

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Thanks, I was doing some experimenting and was thinking maybe it was just as
you stated, because if I just added a label control if found it no problem;
so it's the template that is at issue. I will study your other method to see
if I can learn it, I don't like having to rewrite my script with every
design change, so that would be a plus if I can do it your way.

John
""Walter Wang [MSFT]"" <wawang (AT) online (DOT) microsoft.com> wrote