public static string CombineResults(ValidationResult[] results)
{
if (results == null) throw new ArgumentNullException(nameof(results));
if (results.Length == 0)
{
return string.Empty;
}
var buffer = new StringBuilder();
foreach (var result in results)
{
if (result != ValidationResult.Success)
{
if (buffer.Length > 0)
{
buffer.Append(@", ");
}
buffer.Append(result.ErrorMessage);
}
}
return buffer.ToString();
}
public static ValidationResult[] GetViolated(ValidationResult[] results)
{
if (results == null) throw new ArgumentNullException(nameof(results));
if (results.Length == 0) throw new ArgumentOutOfRangeException(nameof(results));
var totalViolations = 0;
foreach (var result in results)
{
if (result != ValidationResult.Success)
{
totalViolations++;
}
}
if (totalViolations > 0)
{
var violations = new ValidationResult[totalViolations];
var index = 0;
foreach (var result in results)
{
if (result != ValidationResult.Success)
{
violations[index++] = result;
}
}
return violations;
}
return new ValidationResult[0];
}