How to validate input for a system property

[Josh5]

I have a custom application that is using a system property to store a decimal percent value (as a string) that is used throughout the application. This value will be changed by an application admin of sorts. I need a way to validate that the user enters an appropriate value. I have searched around and cannot find much of any documentation regarding custom properties. Can this be done or should i look into using something else? Thanks.

[The SN Nerd]

You could create a before business rule on the 'sys_properties' table to validate particular data types.

For example

Condition:

Type IS string AND Name contains "sys_id"

Script

if ( current.getValue(value).length != 32 ) {
current.setAbortAction(true);
gs.addErrorMessage('You must enter a valid sys id');
}