how to do validation?

I have 2 fields on my jsp:
start date and end date.
I have to put some validation that the startDate user enters in always less than or equal to the end date.
(I have myAction which extends ValidatorForm. I am using validation.xml to put required field check.)

It sounds like you already know how to do validating for your ActionForm. What part exactly are you having problems with? Also, have you read the Struts documentation on build in validators for the ValidatorPlugin?

i have same problem.
I have startdate, end date.
I have validator.xml. (using validation plugin)
I have put both as required fields in this file.
but how to check if one is greater than another?

you need to write your own custom validation. look for samples online. the most common example you'll find is the validate identical (eg. if the user entered the same password for 2 fields). base on that example, you can do your date compare validation.

Has anybody done this before? Could you please point me to some useful information on what I am looking for.thanks.

It looks like someone took the time to document the solution at http://www.junlu.com/msg/159728.html

every struts developer should have a shortcut to http://struts.apache.org/userGuide/index.html

for your question, look at the validatTwoFields example in the validator docs: http://struts.apache.org/userGuide/dev_validator.html

Write a small function for testing if the first date is greater than the second one.
then add the error to action error object.(valErrors.add("date", new ActionError("errors.date"));

Originally posted by vinod:
Write a small function for testing if the first date is greater than the second one.
then add the error to action error object.(valErrors.add("date", new ActionError("errors.date"));

"vinod",

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