问题
Im using crystal report in asp.net....I have create parameter fields to get input....Consider if i create numeric parametere field then i have to validate that particular field if user enter other than numbers how?
回答1:
You can validate parameter value before pass it to report and if its value was not valid show a message and don't preview report.
来源：https://stackoverflow.com/questions/2004634/crystal-report-parametr-field-validation