Escaping the & in Attributes.Add()

  • Thread starter Nathan Sokalski
  • Start date
N

Nathan Sokalski

I am adding an onmouseover attribute using the Attributes.Add() method, and
the String I am using for the value contains the & character. However, when
rendered the & is converted to the HTML representation of & which causes
my JavaScript not to work. What can I do to prevent the Add() method from
modifying my value? Thanks.
 
J

Jesse Houwing

Hello Nathan,
I am adding an onmouseover attribute using the Attributes.Add()
method, and the String I am using for the value contains the &
character. However, when rendered the & is converted to the HTML
representation of & which causes my JavaScript not to work. What
can I do to prevent the Add() method from modifying my value? Thanks.
Click to expand...

Any attribute must escape the HTML special characters. An onCLick as well.
Are you sure this is causing the error?
 
N

Nathan Sokalski

Yes, I am sure because I create the value by assigning a value to a String
variable, and then using that variable in the Attributes.Add() method. For
example:

Dim onmouseover as String= "my javascript code" 'This contains &'s in my
actual code
mycontrol.Attributes.Add("onmouseover",onmouseover)

When I used this technique and ran a Debug session, the String onmouseover
looked exactly as I wanted, but the rendered code had replaced the &'s with
& which is what I am trying to avoid. Any ideas? Thanks.
 
J

Jesse Houwing

Hello Nathan,
Yes, I am sure because I create the value by assigning a value to a
String variable, and then using that variable in the Attributes.Add()
method. For example:

Dim onmouseover as String= "my javascript code" 'This contains &'s in
my
actual code
mycontrol.Attributes.Add("onmouseover",onmouseover)
When I used this technique and ran a Debug session, the String
onmouseover looked exactly as I wanted, but the rendered code had
replaced the &'s with & which is what I am trying to avoid. Any
ideas? Thanks.
Click to expand...

There are no idea's. The spec says that every attribute must be encoded using
html encoding. That includes the &. The javascript perser should work.

If you run it in Firefox, what is the message on the javascript console when
you click the html element in question (firefox is usually a bit mor eoncise
in it's error messages). There must be somethign else wrong here.

I tested the code below:

<html>
<body>
<form>
<input type="button" onclick="alert(true &amp;&amp; true);" value="test">
</form>
</body>
</html>

And it works in both Internet Explorer and Firefox (it should say true in
the alert when you click the button).

Jesse
 

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