/// <summary>
/// Sets the validation errors for the specified property.
/// </summary>
/// <remarks>
/// If a change is detected then the errors changed event is raised.
/// </remarks>
/// <param name="propertyName">The name of the property.</param>
/// <param name="results">The new validation errors.</param>
public void SetErrors(string propertyName, IEnumerable <string> results)
{
var name = propertyName ?? string.Empty;
_validationResults.Remove(name);
_validationResults.AddRange(name, results);
if (_raiseErrorsChanged != null)
{
_raiseErrorsChanged(name);
}
}