/// <summary>
/// Gets the validation errors for a specified property or for the entire object.
/// </summary>
/// <param name="propertyName">The name of the property to retrieve validation errors for, or null or <see cref="F:System.String.Empty"/> to retrieve errors for the entire object.</param>
/// <returns>
/// The validation errors for the property or object.
/// </returns>
public IEnumerable GetErrors(string propertyName)
{
var validationResult = Validator.GetResult(propertyName);
// Return all the errors as a single string because most UI implementations display only first error
return(validationResult.IsValid ? Enumerable.Empty <string>() : new[] { validationResult.ToString() });
}
/// <summary>
/// Gets the error message for the property with the given name.
/// </summary>
/// <returns>The error message for the property. The default is an empty string ("").</returns>
public string this[string columnName]
{
get { return(Validation.GetResult(columnName).ToString()); }
}
