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?

http://stackoverflow.com/questions/528066/server-tag-in-onclientclick Cheers. — vtortola, Sep 19 '11 at 10:50
See this post http://stackoverflow.com/questions/6203200/how-to-call-javascript-function-from-asp-net-button-click-event — Saket, Sep 19 '11 at 10:52

Saket · Accepted Answer · 2011-09-19T11:57:59.060

1

Use this :

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

edited Sep 19 '11 at 11:57

answered Sep 19 '11 at 10:56

Saket

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That doesn't work because the " is used inside the main set of ". It gives a "Server tag is not well formed" error. – Arj Sep 19 '11 at 11:14
You're saying that this does not work: `');' />` ? – Saket Sep 19 '11 at 11:57
What you've posted now might work, now you've put the \" in. Before the edit there were no escape characters. – Arj Sep 19 '11 at 12:32
yep, agree. i missed the extra " in context. – Saket Sep 19 '11 at 12:33

Rased Dot Net · Answer 2 · 2011-09-20T07:35:02.723

0

Just use:

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

You forget to put single quote outside the server tag.

edited Sep 20 '11 at 07:35

answered Sep 19 '11 at 11:00

Rased Dot Net

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Syntax error in dynamic aspx Javascript function call?

2 Answers2