      * 
      *  @param item The data item. Null items return the empty string. 
      * 
-     *  @param labelField The field in the data item to return.
+     *  @param labelField The field in the data item to return. If labelField is set 
+     *  to an empty string (""), no field will be considered on the data item 
+     *  to represent label.
      * 
      *  @param labelFunction A function that takes the data item 
      *  as a single parameter and returns a String. 

package spark.utils
{

/**
 *  The LabelUtil class is used by components to determine the correct
 *  text to display for their renderers or sub-parts. 

        if (item is String)
            return String(item);

        // special case for empty labelField
        if (labelField == "" && FlexVersion.compatibilityVersion >= FlexVersion.VERSION_4_5)
            return "";
        
        try
        {
            if (item !== null)
