formula syntax checker

[dzemo]

I need to implement formula syntax checker (like crystal reports formula
field or something like than)
Like this it should be : I have tree list with some fields which user can ad
to formula (field will later have values not in time when user adding in
formula) and user can write simple math operations (+,-,*,/)

this is valid formula (field1)*3-(field6)*(field12)

this is invalid examples:

(field1)*3-(field6)*-(field12)

(field1)*3-(field6)*(field12)a

(field1)*3-(field6)(field12)....

Any help , any examples

Thx

 

[Mohamoss]

hi Dzemal
You should be using regular expressions validator control. Check out the
link

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpguide/htm
l/cpconregularexpressionvalidatorcontrolsample.asp
hope that helps
Mohamed Mahfouz
MEA Developer Support Center
ITworx on behalf of Microsoft EMEA GTSC