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

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Extra info for CSLA dot NET Version 2.1. Handbook C Sharp Edition

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This feature is strongly linked to the concept of rule priorities as discussed earlier. For short-circuiting to work, you must be able to control the order in which the rule methods are invoked. Short-circuiting stops the processing of rules for the current property only. If the property has dependant properties, their rules will be processed even if short-circuiting has occurred. CheckRules() is used to check all rules for all properties, short-circuiting won’t stop the overall process; it will only stop the processing of subsequent rules for each individual property.

Remember, only the Error result causes the object to be considered invalid. Warning and results do not cause IsValid to return false , and will not prevent the Save() method from saving the object. You may choose to override Save() to alter this default behavior, if desired. Information Using Rule Priorities Sometimes it is important to control which rule methods are executed first, and which are executed later in the process. 1 allows you to control the order of execution through the use of rule priorities.

Using Strongly-typed Rule Methods If you’ve been reading through the previous sections on using the new validation features, you’ve seen examples of strongly typed rule methods, but I haven’t walked through their use from end to end. Strongly-typed rule methods allow you to use the compiler to help you debug your code, rather than waiting for casting exceptions at runtime. They also allow you to avoid having to manually cast the target and RuleArgs parameter values in your rule methods. Using strongly-typed rule methods is a two part process.

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