Chapter 1 - NerdDinner - Errors

calculemus · #11 (**permalink**) October 8th, 2009, 08:48 AM

Yes AbrarP, you're right. I think it should be:

Code:

ModelState.AddRuleViolations(dinner.GetRuleViolations());

because in previous page, we created an extension method

Code:

public static void AddRuleViolations(this ModelStateDictionary modelState, ...)

.

Hope this helps!
S.

AbrarP · #12 (**permalink**) October 8th, 2009, 10:24 AM

This is what the book doesn't say (pg 70-71): The code for the controllerhelper class is all wrong...

Incorrect Code:

Code:

public static class ControllerHelpers {    
              public static void AddRuleViolations(this ModelStateDictionary                   
                          modelState,   IEnumerable<RuleViolation> errors) {        
                  foreach (RuleViolation issue in errors) {
                             modelState.AddModelError(issue.PropertyName,              
                                                                  issue.ErrorMessage);
                  }    
              } 
}

Correct Code:

Code:

public static class ModelStateHelpers {

        public static void AddModelErrors(this ModelStateDictionary modelState, IEnumerable<RuleViolation> errors) {

            foreach (RuleViolation issue in errors) {
                modelState.AddModelError(issue.PropertyName, issue.ErrorMessage);
            }
        }
    }

calculemus · #13 (**permalink**) October 8th, 2009, 11:03 AM

You could either change the method definition or ignore the errata for page 71.

S.

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