public CommandValidationException(List <ValidationFailure> failures)
: this()
{
var propertyNames = failures
.Select(e => e.PropertyName)
.Distinct();
foreach (var propertyName in propertyNames)
{
var propertyFailures = failures
.Where(e => e.PropertyName == propertyName)
.Select(e => e.ErrorMessage)
.Distinct()
.ToArray();
Failures.Add(propertyName, propertyFailures);
}
Errors = Failures.Select(x => x.Key).ToList();
}