Re: [slightly OT] Any advice for 'jsp.error.useBean.duplicate' ?

[bOOyah]

Joe Hertz wrote:
The old 'alternating-table-row-color' trick.
No doubt there's a better way of doing that too.


Thought about using the "one minus 1|0" trick? 

Initialize some int to 1 or 0:

int index = 0;

Then in your loop do:

index = 1 - index;

And set the color based upon some two element array based on index:

color = colorArray[index];
I like that.  Nice.

Thanks for the reply Joe.
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bOOyah
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RE: [slightly OT] Any advice for 'jsp.error.useBean.duplicate' ?

[Joe Hertz]

> The old 'alternating-table-row-color' trick.
> No doubt there's a better way of doing that too.

Thought about using the "one minus 1|0" trick? 

Initialize some int to 1 or 0:

int index = 0;

Then in your loop do:

index = 1 - index;

And set the color based upon some two element array based on index:

color = colorArray[index];


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Re: [slightly OT] Any advice for 'jsp.error.useBean.duplicate' ?

[bOOyah]

Curtis Taylor wrote:

You're creating the bean "status" in the varStatus declaration in your 
c:forEach action. It's in scope in the loop as "status" already, so you 
don't need to re-initialize it. You can access its attributes inside 
your loop:




...etc.
*sigh*  You are, of course, correct.  I could have sworn I tried that. 
I certainly swore.

Just curious; what're you trying to do inside the loop?
The old 'alternating-table-row-color' trick.


  

  <%-- set style for EVEN rows --%>
  
  <%-- set style for ODD rows --%>
  


No doubt there's a better way of doing that too.

Many thanks Curtis.

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bOOyah
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Re: [slightly OT] Any advice for 'jsp.error.useBean.duplicate' ?

[Curtis Taylor]

You're creating the bean "status" in the varStatus declaration in your c:forEach 
action. It's in scope in the loop as "status" already, so you don't need to 
re-initialize it. You can access its attributes inside your loop:




...etc.

Just curious; what're you trying to do inside the loop?

Curtis
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c dot tee at verizon dot net
bOOyah wrote:
It's killing me.  Here's the snippet:

[ServletException in:/pages/editscheduledetails.jsp]
/pages/editscheduledetails.jsp(276,6) jsp.error.useBean.duplicate'
org.apache.jasper.JasperException: /pages/editscheduledetails.jsp(276,6)
My assumption in that the Jasper compiler thinks I have attempted to use 
a bean multiple times in the same scope or something.

Here's the only piece of that JSP that uses a bean:

Line 276:


  
...
If I change "status" to "qwerty" it all works fine!  The JSP books say 
that the 'varStatus' variable is local to the 'c:forEach' loop!  How can 
I be declaring duplicate beans?  I even added a scope="page" to the 
'useBean' clause, but it made no difference.

I'm not explicitly including other JSPs in this JSP...I'm using Tiles 
and Struts.

Google only returns very scant info about 'jsp.error.useBean.duplicate' :-(

Thanks for any help.



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