Velocimacro - Generate a HTML Select box and its Options

A quick and simple Velocimacro to generate HTML Select boxes and its Options; automatically selects the correct option based on the value given.

You can place this #macro anywhere in your Velocity templates but I used my global VM_global_library.vm file.

Code

#macro( generateSelectBox $name $options $value )
<select name='$name' value='$value'>
#foreach ( $option in $options )
  #set( $selected = "" )
  #if ( $option == $value )
    #set( $selected = "selected='true'" )
  #end
  <option value='$option' $selected>$option</option>
#end
</select>
#end

Example Usage

#generateSelectBox( "enabled" ["Y","N"] $form.enabled )

The resulting HTML:

<select name='enabled' value='N'>
  <option value='Y'>Y</option>
  <option value='N' selected='true'>N</option>
</select>

Addendum

11th November 2005 : Thanks to MATT for pointing out the FreeMarker template engine as a promising replacement for Velocity. ;)

About this entry

You’re currently reading “Velocimacro - Generate a HTML Select box and its Options,” an entry on Weblog of Michael Cutler

Published:
5th October 2005 / 12:10pm
Category:
Java, Jakarta Velocity

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