I have created five extra fields which I want to display in Item view. But in item view in category listings I only want to display two of them. Is this possible with K2? Or is it all or nothing?

It is possible by overriding the category.php and placing an if statement in the php foreach loop that displays the extra fields and test for the name you do or do not want and let the display accordingly.

You need to help me a little further. I found the code in category.php, but I cant figure out where and what to test for.

sorry, category_item.php
search for this <!-- Item extra fields --> and you will find the xtra field display just below it
around line 129 looks like this
[code]
<?php if($this->item->params->get('catItemExtraFields') && count($this->item->extra_fields)): ?>
<!-- Item extra fields -->
<div class="catItemExtraFields">
<h4><?php echo JText::_('K2_ADDITIONAL_INFO'); ?></h4>
<ul>
<?php foreach ($this->item->extra_fields as $key=>$extraField): ?>
<?php if($extraField->value): ?>
<li class="<?php echo ($key%2) ? "odd" : "even"; ?> type<?php echo ucfirst($extraField->type); ?> group<?php echo $extraField->group; ?>">
<span class="catItemExtraFieldsLabel"><?php echo $extraField->name; ?></span>
<span class="catItemExtraFieldsValue"><?php echo $extraField->value; ?></span>
</li>
<?php endif; ?>
<?php endforeach; ?>
</ul>
<div class="clr"></div>
</div>
<?php endif; ?>
{/code]

you can test the extra field label for know values and skip the field else just display it as a part of the loop

Thank you William!

sorry - i am newbie and no coder - could you help just a little more - lets say i have a extra field "Price" and "Model" - with lots more other fields but i only want to display these 2 - what should i put where in this part of code?

Hi. We are adding an extra field alias in the next release. This way you can retrieve an extra field using the following code:

Note that depending on the context you may need to change the code to :

The ALIAS is referring to the extra field alias which can be set in the extra field edit form.
The above code will work in the next release for K2. It does not work on K2 2.6.1. If you need this you can grab a copy of the SVN version at getk2.org/assets/svn

@Lefteris This is a really good feature, and simple 2!

could somebody just tell us where exactly we need to place that code? category.php or item?

my result is probably not the best coding, but it works for me in category_item.php look for

<?php if($extraField->value): ?>
<li class="<?php echo ($key%2) ? "odd" : "even"; ?> type<?php echo ucfirst($extraField->type); ?> group<?php echo $extraField->group; ?>">
<span class="catItemExtraFieldsLabel"><?php echo $extraField->name; ?></span>
<span class="catItemExtraFieldsValue"><?php echo $extraField->value; ?></span>
</li>
<?php endif; ?>

now you basically replace the first line with: <?php if ($extraField->id == '6'): ?>
replace the 6 with the id of the extra field you want to display - now i have 2 fields i display so i have the code twice below each other inside the <?php foreach code part like below

<?php foreach ($this->item->extra_fields as $key=>$extraField): ?>
<?php if ($extraField->id == '6'): ?>
<li class="<?php echo ($key%2) ? "odd" : "even"; ?> type<?php echo ucfirst($extraField->type); ?> group<?php echo $extraField->group; ?>">
<span class="catItemExtraFieldsLabel"><?php echo $extraField->name; ?></span>
<span class="catItemExtraFieldsValue"><?php echo $extraField->value; ?></span>
</li>
<?php endif; ?>
<?php if ($extraField->id == '9'): ?>
<li class="<?php echo ($key%2) ? "odd" : "even"; ?> type<?php echo ucfirst($extraField->type); ?> group<?php echo $extraField->group; ?>">
<span class="catItemExtraFieldsLabel"><?php echo $extraField->name; ?></span>
<span class="catItemExtraFieldsValue">R<?php echo $extraField->value; ?></span>
</li>
<?php endif; ?>
<?php endforeach; ?>

like i said - it might not make sense for the coding gurus but it works for me