c# - CustomAttribute that validates 2 fields -

so have these 2 input fields fromdate , todate,

in mvc want create customattribute ensure fromdate before todate.

is possible? if how? or alternative?

thanks

mvc foolproof validation great way go this. operates on server side reference , propagates client side script include.

http://foolproof.codeplex.com/

here example of attribute in action:

public class eventviewmodel {     [required]     public string name { get; set; }      [required]     public datetime start { get; set; }      [required]     [greaterthan("start")]     public datetime end { get; set; } } 

see greaterthan attribute on date. save having write yourself.

you can nuget project: http://nuget.org/packages/foolproof

pm> install-package foolproof 

i hope helps.