[mapserver-users] Multiple LabelItems from dropdown?

["Mark Abernathy" <WMABERN@gwm.sc.edu>]

Hi folks,

I have an airport layer with different classes of airports within it determined by a SYMBOL attribute in the shape file. I would like to be able to choose the Attribute to display at run time by feeding the labelitem i.e FAAID or Airport Name from a dropdown list box on my html form. 

In other words, I want the user to be able to diplay the Airport name if they want, or the FAA Id, etc... chosen from a dropdown. Can this be done?

 

I haven't seen a question on this or an example of this in the archives.

 

Does anyone have an example of doing this and what variable should I be passing to the map file and what is the syntax of that, please? Also, any suggestions on the coding of the html drop down? Thanks for any assistance.  Below is a snip of my map file.

 

 

# Start of AIRPORT Layer
LAYER
  NAME AIRPORT
  TYPE Point
  DATA AIRPORT
  STATUS DEFAULT
  
  LABELITEM FAAID

  CLASSITEM "SYMBOL"
    
   CLASS  
      EXPRESSION /1/
      NAME "Public Airport"
      SYMBOL 13 
      SIZE 11           # legend symbol size
      COLOR 102 204 000  # legend symbol color - green
   
     LABEL
      COLOR 0 0 0
      OUTLINECOLOR 255 255 153
      POSITION AUTO
      SIZE small
      PARTIALS TRUE
      BUFFER 2
     END
   END # CLASS