Next and Previous button for a particular category id [closed]

Question

Next and previous works for same category and it has option for excluding category thats fine what if i want to show next and previous for a particular category id only ???

Thank you in advance

Answer 1

This might help in that it will exclude the categories you do not want.

Note all four places where you input your categories to be excluded. the example id's are id=10 id=20 id=30

if (is_single() && $thesis_design->display['posts']['nav']) { 
$previous = get_previous_post(FALSE,'10,20,30'); 
$next = get_next_post(FALSE,'10,20,30'); 
$previous_text = apply_filters('thesis_previous_post', __('Previous entry: ',  'thesis')); #filter 
$next_text = apply_filters('thesis_next_post', __('Next entry: ', 'thesis'));   #filter 

if ($previous || $next) { 
    echo "\t\t\t\t\t<div class=\"prev_next post_nav\">\n"; 

    if ($previous) { 
        if ($previous && $next) 
            $add_class = ' class="previous"'; 

        echo "\t\t\t\t\t\t<p$add_class>$previous_text"; 
        previous_post_link('%link', '%title',FALSE,'10,20,30'); 
        echo "</p>\n"; 
    } 

    if ($next) { 
        echo "\t\t\t\t\t\t<p>$next_text"; 
        next_post_link('%link', '%title',FALSE,'10,20,30'); 
        echo "</p>\n"; 
    } 

    echo "\t\t\t\t\t</div>\n"; 
   } 
  } 
}