Download CSLA dot NET Version 2.1. Handbook C Sharp Edition by Lhotka PDF

By Lhotka
Read or Download CSLA dot NET Version 2.1. Handbook C Sharp Edition PDF
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Extra resources for CSLA dot NET Version 2.1. Handbook C Sharp Edition
Example text
On the surface it seems that you could just do a recursive call to CheckRules(string) , but it is important to remember that properties can be dependant on each other. Such a recursive call could result in an infinite loop and, eventually, a stack overflow exception. The private overload of CheckRules() executes the rules for the dependant property. = null) CheckRules(list); } } Using the provided ValidationRulesManager object, this method retrieves the RulesList object for the dependant property, and then gets the list of rule methods from that RulesList object.
Rule severity definitions The severity of a rule is set within the rule method itself. This allows your code in the rule method to determine the appropriate severity for the rule failure, allowing for a great deal of flexibility. Information; return false; } else return true; } In this example, the rule’s logic checks a credit limit value. If the limit is exceeded the result is an error, while if it is just under the limit a warning is issued. If the amount exceeds 50% of the limit then an informational message is returned.
The new Information and Warning severities don’t cause an object to be invalid. That is reserved for Error severity only. IsValid used to just check to see if any rules were broken, it now must check to see if any Error severity rules are broken. ReadOnlyBindingList