[mapserver-users] Re: passing values to mapfile

[jjwang]

Thank you so much.
I'm just looking into it.
It says 'You can use runtime substitutions to change values within a FILTER
as you go'.
Can do it within a EXPRESSION?
Cause I was trying to do the substitution within a EXPRESSION.
But it seems not work. (no error)
What I did is:
EXPRESSION ([AREA] > %grade%)
then ...&grade=1000&...

Or I can only substitute the whole expression statement?
I tried:
EXPRESSION %expression%
then ....&expression=([AREA]>1000)&...
But I got an error message 'getSymbol(): Symbol definition error. Parsing
error near (%):(line 27)'



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