The class items in the style dropdown needed to be disabled going to this string. Example DisableClassList="BreadCrumb, TopicMenu, Footer"

Example

<?php   
    $rte=new RichTextEditor();   
    $rte->Text="Type here"; 
    $rte->DisableClassList="class1, class2";    
    $rte->ID="Editor1";    
    $rte->MvcInit(); 
    echo $rte->GetString();  
    // use $_POST["Editor1"]to retrieve the data  
?> 

See Also

Editor Class | RTE Namespace

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