/// <summary>
/// Checks whether the required condition has been met.
/// </summary>
/// <param name="propertyValue">The value of the property decorated with this attribute.</param>
/// <param name="dependentPropertyValue">The value of the dependent property.</param>
/// <returns><c>true</c> if the required condition has been met; otherwise, <c>false</c>.</returns>
private bool Is(object propertyValue, object dependentPropertyValue)
{
if (PassOnNull && (propertyValue == null || dependentPropertyValue == null))
{
return(true);
}
if (FailOnNull && (propertyValue == null || dependentPropertyValue == null))
{
return(false);
}
return(ComparisonType.Compare(propertyValue, dependentPropertyValue));
}
/// <summary>
/// Determines whether the specified value of the object meets the condition.
/// </summary>
/// <param name="propertyValue">The value of the property decorated with this attribute.</param>
/// <param name="dependentPropertyValue">The value of the dependent property.</param>
/// <param name="container">The model this object is contained within.</param>
/// <returns><c>true</c> if the specified value is valid; otherwise, <c>false</c>.</returns>
protected virtual bool IsConditionMet(object propertyValue, object dependentPropertyValue, object container)
{
dependentPropertyValue = HandleEnumerableSelectListItem(dependentPropertyValue);
if (PassOnNull && dependentPropertyValue == null)
{
return(true);
}
if (FailOnNull && dependentPropertyValue == null)
{
return(false);
}
var valuesToTestAgainst = DependentValue as object[] ?? new[] { DependentValue };
var actualValues = dependentPropertyValue as object[] ?? new[] { dependentPropertyValue };
var result = new List <bool>();
foreach (var dependentValue in valuesToTestAgainst)
{
foreach (var actualValue in actualValues)
{
result.Add(ComparisonType.Compare(actualValue, dependentValue));
}
}
if (ComparisonType == ComparisonType.NotEqualTo)
{
// Negative AND validation (all must be true)
return(!result.Contains(false));
}
else
{
// Positive OR validation (at least one must be true)
return(result.Contains(true));
}
}
/// <summary>
/// Checks whether the required condition has been met.
/// </summary>
/// <param name="propertyValue">The value of the property decorated with this attribute.</param>
/// <param name="dependentPropertyValue">The value of the dependent property.</param>
/// <param name="valueToTestAgainst">The value to test the dependent property value against.</param>
/// <returns><c>true</c> if the required condition has been met; otherwise, <c>false</c>.</returns>
protected virtual bool IsConditionMet(object propertyValue, object dependentPropertyValue, object valueToTestAgainst)
{
return(ComparisonType.Compare(dependentPropertyValue, valueToTestAgainst));
}