Passing javascript parameter from codebehind error

Question

I use this script to call a javascript from codebehind.

ClientScript.RegisterStartupScript(this.GetType(), "Exist", "<script language='javascript'>ConfirmRedirect('" + url + "','" + msg + "');</script>", true);

and my javascript code is

function ConfirmRedirect(url,msg)
    {    

        alert(msg);
        window.location.href = url;
    }

Am getting ')' expected error. What am missing here? If am calling javascript without paramters then it is working.

Dhaval Shukla · Accepted Answer · 2012-03-22 11:09:23Z

1

Remove the Script tag and it will work, this worked for me:

 ClientScript.RegisterStartupScript(this.GetType(), "Exist", "ConfirmRedirect('" + url + "','" + msg + "');", true);

answered Mar 22, 2012 at 11:09

Dhaval Shukla

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Comments

Stefan · Accepted Answer · 2012-03-22 13:12:04Z

1

View the HTML source and include it in your question/post.

You have probably just not escaped the msg enough. It can for example not contain single quotes ' or line breaks.

UPDATE

A simple solution would be to escape all single quotes using Replace().

ClientScript.RegisterStartupScript(this.GetType(), "Exist", "<script language='javascript'>ConfirmRedirect('" + url + "','" + msg.Replace("'", "\'") + "');</script>", true);

edited Mar 22, 2012 at 13:12

answered Mar 22, 2012 at 10:35

Stefan

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2 Comments

itzArun Over a year ago

<script type="text/javascript"> //<![CDATA[ <script language='javascript'>ConfirmRedirect('selectappraisee.aspx','Appraisal Details has been upated for ['M.P.Harimurugan'].');</script>//]]> </script>

This is the HTML source am getting. How should I pass the parameter? //]]> why this characters coming in html source?

Stefan Over a year ago

@itzArun That is because your msg string variable contains that text. You can escape them by adding a backslash in front of them like; \'.

Aristos · Accepted Answer · 2012-03-22 10:34:22Z

0

Probably the msg parameter contain symbols like the '

Then the code will be something like

<script language='javascript'>
    ConfirmRedirect('/myurl/somthing.aspx','Here's my message');
</script>

And there wait for the close parenthesis.

answered Mar 22, 2012 at 10:34

Aristos

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3 Comments

itzArun Over a year ago

string msg="Your Comments has been Updated" This is what I declared for msg.

Aristos Over a year ago

@itzArun Then check for the same think on the url.

itzArun Over a year ago

But am calling this script in many places. Like

protected void RedirectMessage(string url,string msg)     {                ClientScript.RegisterStartupScript(this.GetType(), "Exist", "<script language='javascript'>ConfirmRedirect('" + url + "','" + msg + "');</script>", true);     }

incomplete · Accepted Answer · 2012-03-22 12:47:27Z

0

Replace your msg varriable. Use this one---

ClientScript.RegisterStartupScript(this.GetType(), "Exist", "javascript:ConfirmRedirect('" + url + "','" + msg.Replace("'","") + "');", true);

answered Mar 22, 2012 at 12:47

incomplete

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