protected override ValidationResult IsValid(object value, ValidationContext validationContext)
{
if (value == null)
{
return(ValidationResult.Success);
}
if (value.GetType() != typeof(string))
{
throw new ArgumentException("CodePatternAttribute can only be applied to string properties");
}
if (XHtml.IsValidValue(value as string))
{
return(ValidationResult.Success);
}
else
{
return(DotNetAttributeValidation.BuildResult(validationContext, "Xml can not be parsed or is not valid according to the (limited) FHIR scheme"));
}
}
