Syntax error in dynamic aspx Javascript function call?

Question

I'm writing a bit of aspx code to call a JavaScript function from a server control. Here's the JavaScript:

<script type="text/javascript">
    function checkInfoPortalUnpin(portalareaid) {
        if(portalareaid == 1) {
            alert('a message');
        }
    }
</script>

And here's the calling aspx code:

<asp:ImageButton OtherFields="omitted..."
   OnClientClick='checkInfoPortalUnpin(<%# Eval("PortalAreaID") %>);' />

When I view the source of that line in the browser (IE8) it is rendering as this:

... onclick="checkInfoPortalUnpin(&lt;%# Eval(&quot;PortalAreaID&quot;) %>);"

and I get a syntax error when I click on the ImageButton. I know the OnClientClick does work because if I replace the <%# ... %> with a hard-coded '1' the function runs fine. Am I missing something?

stackoverflow.com/questions/528066/server-tag-in-onclientclick Cheers. — vtortola
– vtortola, Commented Sep 19, 2011 at 10:50

Saket · Accepted Answer · 2011-09-19 11:57:59Z

1

Use this :

... OnClientClick="checkInfoPortalUnpin('<%# Eval(\"PortalAreaID\") %>');" ...

edited Sep 19, 2011 at 11:57

answered Sep 19, 2011 at 10:56

Saket

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4 Comments

Arj Over a year ago

That doesn't work because the " is used inside the main set of ". It gives a "Server tag is not well formed" error.

Saket Over a year ago

You're saying that this does not work: <asp:ImageButton otherFields="omitted..." OnClientClick="checkInfoPortalUnpin('<%# Eval(\"PortalAreaID\") %>');' /> ?

Arj Over a year ago

What you've posted now might work, now you've put the \" in. Before the edit there were no escape characters.

Saket Over a year ago

yep, agree. i missed the extra " in context.

Rased Dot Net · Accepted Answer · 2011-09-20 07:35:02Z

0

Just use:

<asp:ImageButton runat="server" OnClientClick="checkInfoPortalUnpin('<%# Eval(\"PortalAreaID\") %>');" />

You forget to put single quote outside the server tag.

edited Sep 20, 2011 at 7:35

answered Sep 19, 2011 at 11:00

Rased Dot Net

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