Solved

how do we use <logic:equal> tag?

Posted on 2004-04-01
5
14,704 Views
Last Modified: 2013-11-19
Hi,

I have code like this

<logic:iterate id="hdrVec" name="<%=WebConstants.MESSAGE_COUNTS_HDR %>" offset="0" length="1"  > <bean:write name="hdrVec" /> </logic:iterate>

Now i want use empty tag with in the <logic:iterate> tag

like
<logic:iterate id="hdrVec" name="<%=WebConstants.MESSAGE_COUNTS_HDR %>" offset="0" length="1"  > if this element is equal to "" then <bean:write name="hdrVec" /> else
just empty string i.e "" </logic:iterate>

please give me some code how do we use <logic:equal> tag in this scenario

thanks
0
Comment
Question by:mvkraju
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
5 Comments
 
LVL 6

Expert Comment

by:jarasa
ID: 10732645
Something like this:

<%@ page language="java" %>
<%@ taglib uri="/WEB-INF/struts-logic.tld" prefix="logic" %>

<!-- Is the number guess right? -->
<logic:equal parameter="number" value="7">
  You guessed right! You win a high speed blender!
</logic:equal>

<!-- If the number guessed was wrong -->
<logic:notEqual parameter="number" value="7">
  <!-- Less Than -->
  <logic:lessThan parameter="number" value="7">
         A little higher...
  </logic:lessThan>
  <!-- Greater Than -->
  <logic:greaterThan parameter="number" value="7">
         A little lower...
  </logic:greaterThan>
</logic:notEqual>

Javier
0
 

Author Comment

by:mvkraju
ID: 10733445
For the given example i used offset="0" length="1" in the <logic:iterate> tag
in that case i am retrieving the first element from the collection.

here i don't know the parameter name, just i know the what idex it is

So what will be the parameter in this case?

0
 
LVL 14

Accepted Solution

by:
kennethxu earned 20 total points
ID: 10734162
is this what you are looing for?

<logic:equal name="hdrVec" value="">
 dothis
</logic:equal>
<logic:notEqual name="hdrVec" value="">
 dothat
</logic:notEqual>
0
 

Author Comment

by:mvkraju
ID: 10734695
can i user offset and length attributes for the <logic:equal> tag?

if so i got solution for my problem.
0
 

Author Comment

by:mvkraju
ID: 10735227
<logic:equal name="hdrVec" value="">
 dothis
</logic:equal>

is working for me, just i need to put this logic between my <logic:iterate> tag
0

Featured Post

Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

It's sometimes a bit tricky to use date functions in Oracle BPEL. I'll explain quickly how you can add N days to the current date. In a BPEL process this can be useful, and you can adapt it to fit your needs. First of all, let's see how to add 1 …
Browsers only know CSS so your awesome SASS code needs to be translated into normal CSS. Here I'll try to explain what you should aim for in order to take full advantage of SASS.
The viewer will learn the benefit of using external CSS files and the relationship between class and ID selectors. Create your external css file by saving it as style.css then set up your style tags: (CODE) Reference the nav tag and set your prop…
Video by: Mark
This lesson goes over how to construct ordered and unordered lists and how to create hyperlinks.

737 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question