Hi all,
I have a class (Person) inheriting from BusinessBase.
Person has a property called DateofBirth.
I need to create a validation rule to prevent that DateofBirth won't be greater than current date.
How can create a custom rule to integrated to de class validation rules through the ValidationRules.Addrule?
Please, any code in VB.NET will appreciated.
Thanks,
L.M
The books do a very good job of explaining how to create these rules, as do the CSLA videos.
I would recommend both exploring both of those resources, if you haven't previously.
You also don't mention what version of CSLA you are using / targeting.
There is a fundamental difference in how rules are created in version 3.x and in the upcoming version 4.
Here is a basic rule that will compare any standard date field and ensure that it is not greater than the standard date, if this is a rule that may be applied to multiple objects it is good practice to put it into your own common rules library.
Private Shared Function DateNotGreaterThanCurrentDate(ByVal target as Object, ByVal e as Csla.Validation.RuleArgs) As Boolean
If DirectCast(CallByName(target, e.PropertyName, MethodType.Get, Nothing), Date) >= Date.Now()) Then
e.Description = String.Format("The {0} field cannot be greater than the current date", e.PropertyName)
Return False
End If
Return True
End Function
Hi Marjon:
Thank you for your help.
I'm a rookie and I'm spanish spoken. I red the book but I don't undestarnd much about custom rules, I'll do it again.
Please could you tell where can I find the videos?
Thanks again,
L.M
The videos can be purchased at http://store.lhotka.net/
Copyright (c) Marimer LLC