static void RuleChanged(ValidationStatusControl status, BrokenRuleEventArgs args, bool isValid)
{
if (!isValid)
{
status.fieldErrors.Add(args.BrokenRule);
}
else
{
status.fieldErrors.Remove(args.BrokenRule);
}
var strs = from brokenRule in status.fieldErrors
select brokenRule.Message;
status.ErrorMessage = string.Join(Environment.NewLine, strs.ToArray());
}
private static void EntityChangedCallback(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
ValidationStatusControl status = d as ValidationStatusControl;
Debug.Assert(status != null);
EventHandler <BrokenRuleEventArgs> ruleRep = delegate(object sender, BrokenRuleEventArgs args) { RuleChanged(status, args, true); };
EventHandler <BrokenRuleEventArgs> ruleBreak = delegate(object sender, BrokenRuleEventArgs args) { RuleChanged(status, args, false); };
if (e.OldValue != null)
{
var c = ((EntityBase)e.OldValue).Extensions.BrokenRules;
c.RuleRepaired -= ruleRep;
c.RuleBroken -= ruleBreak;
foreach (var brokenRule in c)
{
RuleChanged(status, new BrokenRuleEventArgs(brokenRule), true);
}
}
if (e.NewValue == null)
{
return;
}
{
var c = ((EntityBase)e.NewValue).Extensions.BrokenRules;
c.RuleRepaired += ruleRep;
c.RuleBroken += ruleBreak;
foreach (var brokenRule in c)
{
RuleChanged(status, new BrokenRuleEventArgs(brokenRule), false);
}
}
}