/// <summary>Returns the list containing rules for a property. If no list exists one is created and returned.</summary>
/// <param name="propertyName">Name of the property.</param>
/// <returns><see cref="ValidationRulesList"/> for the specified property name.</returns>
/// <exception cref="ArgumentNullEmptyWhiteSpaceException">Thrown when propertyName is null, empty, or white space.</exception>
public ValidationRulesList GetRulesForProperty(String propertyName)
{
if (String.IsNullOrWhiteSpace(propertyName))
{
throw new ArgumentNullEmptyWhiteSpaceException(nameof(propertyName));
}
if (this.RulesDictionary.ContainsKey(propertyName))
{
return(this.RulesDictionary[propertyName]);
}
var validationRulesList = new ValidationRulesList();
this.RulesDictionary.Add(propertyName, validationRulesList);
return(validationRulesList);
}
