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Posted to user@struts.apache.org by xianwinwin <xi...@gmail.com> on 2008/03/26 21:06:15 UTC
how to do: a double validation?
hi there,
say a user inputs a value for a double field (say amount of money); the
value should be a double (eg, 53.23)
Question: if the user enters something like ABCD how can I provide the error
message?
I would like to do that with annotation? (say....you enter an invalid
value...)
what type of validation whould that be?!?!?!
@Validations(
stringLengthFields ={
@StringLengthFieldValidator(type = ValidatorType.SIMPLE,
trim = true, minLength="1" , fieldName = "age", message = "you forgot this
one!!!! ")
}
)
public String updatePolicy()
{
// do something here
}
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Re: how to do: a double validation?
Posted by Dave Newton <ne...@yahoo.com>.
--- xianwinwin <xi...@gmail.com> wrote:
> yes, this works for checking the range but I wish to check the validity of
> the field. meaning, I'd like to provide my error message in case the user
> gave wrong input. how do I do that?
That would depend on what "wrong input" means.
If the existing validators do not provide the checking you need you can
create your own, register it via XML configuration, and use the
@CustomValidator (I think) annotation.
Dave
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Re: how to do: a double validation?
Posted by xianwinwin <xi...@gmail.com>.
Thank you Dave!!!
yes, this works for checking the range but I wish to check the validity of
the field.
meaning, I'd like to provide my error message in case the user gave wrong
input. how do I do that?
Thank you again
newton.dave wrote:
>
> --- xianwinwin <xi...@gmail.com> wrote:
>>
>> say a user inputs a value for a double field (say amount of money); the
>> value should be a double (eg, 53.23)
>>
>> Question: if the user enters something like ABCD how can I provide the
>> error message?
>> I would like to do that with annotation? (say....you enter an invalid
>> value...)
>>
>>
>> what type of validation whould that be?!?!?!
>
> Er... a Double validation?
>
> http://struts.apache.org/2.x/docs/doublerangefieldvalidator-annotation.html
>
> Dave
>
>
>
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Re: how to do: a double validation?
Posted by Dave Newton <ne...@yahoo.com>.
--- xianwinwin <xi...@gmail.com> wrote:
>
> say a user inputs a value for a double field (say amount of money); the
> value should be a double (eg, 53.23)
>
> Question: if the user enters something like ABCD how can I provide the
> error message?
> I would like to do that with annotation? (say....you enter an invalid
> value...)
>
>
> what type of validation whould that be?!?!?!
Er... a Double validation?
http://struts.apache.org/2.x/docs/doublerangefieldvalidator-annotation.html
Dave
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