public static Validation IsOfType <T>(this Validation validation, object theObject, string paramName)
{
if (theObject == null)
{
return(validation.AddException(ValidationException.IsRequired(paramName)));
}
if (theObject.GetType() != typeof(T))
{
return
(validation.AddException(
new ValidationException($"{paramName} is not of type {typeof(T).Name}")));
}
return(validation);
}
public static Validation Contains <T>(this Validation validation, IEnumerable <T> items, Predicate <T> criteria,
string message)
{
return(items.Any(x => criteria(x))
? validation
: validation.AddException(new ValidationException(message)));
}
public static Validation IsWithinLength(this Validation validation, string theString, int maxLength,
string paramName)
{
return(string.IsNullOrEmpty(theString) || theString.Length > maxLength
? validation.AddException(ValidationException.ExceedsMaximumLength(paramName))
: validation);
}
public static Validation Contains <T>(this Validation validation, IEnumerable <T> items, T criteria,
string message)
{
return(items.Any(x => Equals(x, criteria))
? validation
: validation.AddException(new ValidationException(message)));
}
public static Validation IsTrue(this Validation validation, string theString,
Func <string, bool> isValidCustomFunction, string exceptionMessage)
{
return(!isValidCustomFunction(theString)
? validation.AddException(ValidationException.IsNotTrue(exceptionMessage))
: validation);
}
public static Validation IsNotEmpty <T>(this Validation validation, IEnumerable <T> theList, string paramName)
{
return(theList == null || !theList.Any()
? validation.AddException(
ValidationException.FormattedError("{0} is not expected to be empty", paramName))
: validation);
}
public static Validation LessThan <T>(this Validation validation, T theObject, T comparison, string paramName)
where T : IComparable <T>
{
return(theObject.CompareTo(comparison) < 0
? validation
: validation.AddException(new ValidationException(paramName)));
}
public static Validation GreaterThanOrEqual <T>(this Validation validation, T theObject, T comparison,
string paramName) where T : IComparable
{
return(theObject.CompareTo(comparison) >= 0
? validation
: validation.AddException(new ValidationException(paramName)));
}
public static Validation IsMinimumLength(this Validation validation, string theValue, int minimumLength,
string message)
{
return(string.IsNullOrEmpty(theValue) || theValue.Length < minimumLength
? validation.AddException(ValidationException.MustBePhoneNumber(message))
: validation);
}
public static Validation IsLengthOf(this Validation validation, string theString, int expectedLength,
string paramName)
{
var adds = expectedLength > 1 ? "s" : "";
return(string.IsNullOrEmpty(theString) || theString.Length != expectedLength
? validation.AddException(
ValidationException.IsNotLengthOf(
$"{paramName} needs to be exactly {expectedLength} character{adds} long."))
: validation);
}
public static Validation GreaterThan(this Validation validation, DateTime?theObject, DateTime?comparison,
string paramName)
{
if (!theObject.HasValue || !comparison.HasValue)
{
return(validation);
}
return(theObject.Value.CompareTo(comparison.Value) > 0
? validation
: validation.AddException(new ValidationException(paramName)));
}
public static Validation IsDate(this Validation validation, string date, string paramName, string format = null)
{
var success = format == null
? DateTime.TryParse(date, out _)
: DateTime.TryParseExact(date, format, DateTimeFormatInfo.CurrentInfo,
DateTimeStyles.AssumeLocal, out _);
if (!success)
{
validation.AddException(new ValidationException($"{paramName} is not a valid Date"));
}
return(validation);
}
public static Validation IsPhoneNumber(this Validation validation, string theValue, string paramName)
{
return(string.IsNullOrEmpty(theValue) || !PhoneNumberRegex.IsMatch(theValue)
? validation.AddException(ValidationException.MustBePhoneNumber(paramName))
: validation);
}
public static Validation IsEmail(this Validation validation, string theValue, string paramName)
{
return(string.IsNullOrEmpty(theValue) || !EmailRegex.IsMatch(theValue)
? validation.AddException(ValidationException.MustBeEmail(paramName))
: validation);
}
public static Validation IsEqual <T>(this Validation validation, T left, T right, string message)
{
return(Equals(left, right) ? validation : validation.AddException(new ValidationException(message)));
}
public static Validation IsEmpty <T>(this Validation validation, IEnumerable <T> theItems, string paramName)
{
return(theItems != null && theItems.Any()
? validation.AddException(ValidationException.FormattedError("{0} should be empty", paramName))
: validation);
}
public static Validation ForEach <T>(this Validation validation, IEnumerable <T> items, Func <Validation, T, Validation> action)
{
return(items == null
? validation.AddException(ValidationException.ListIsNullOrEmpty("items"))
: items.Aggregate(validation, action));
}
public static Validation IsNotEmpty(this Validation validation, string theString, string paramName)
{
return(string.IsNullOrEmpty(theString)
? validation.AddException(ValidationException.IsRequired(paramName))
: validation);
}
public static Validation IsNotEqual <T>(this Validation validation, T theObject, T comparison, string paramName)
{
return(Equals(theObject, comparison)
? validation.AddException(ValidationException.IsRequired(paramName))
: validation);
}
public static Validation IsTrue(this Validation validation, bool val, string message)
{
return(val ? validation : validation.AddException(new ValidationException(message)));
}
public static Validation HasLength(this Validation validation, string theValue, int length, string message)
{
return((theValue ?? "").Length != length
? validation.AddException(ValidationException.MustBeOfLength(message))
: validation);
}
public static Validation IsEmpty(this Validation validation, string theString, string paramName)
{
return(!string.IsNullOrEmpty(theString)
? validation.AddException(ValidationException.FormattedError("{0} should be empty", paramName))
: validation);
}
public static Validation Throw(this Validation validation, string message)
{
return(validation.AddException(new ValidationException(message)).Check());
}
public static Validation IsNotNull(this Validation validation, DateTime theObject, string paramName)
{
return(Equals(theObject, DateTime.MinValue)
? validation.AddException(ValidationException.IsRequired(paramName))
: validation);
}
public static Validation IsFalse(this Validation validation, bool?val, string message)
{
return(val.HasValue && val.Value == false? validation : validation.AddException(new ValidationException(message)));
}
public static Validation IsNumeric(this Validation validation, object theValue, string paramName)
{
return(string.IsNullOrEmpty(theValue?.ToString()) || !NumericRegex.IsMatch(theValue.ToString())
? validation.AddException(ValidationException.MustBeNumeric(paramName))
: validation);
}
public static Validation IsNotNull(this Validation validation, decimal theObject, string paramName)
{
return(theObject == 0 ? validation.AddException(ValidationException.IsRequired(paramName)) : validation);
}
public static Validation HasItems <T>(this Validation validation, IEnumerable <T> items, int count, string message)
{
return((items != null && items.Count() == count)
? validation
: validation.AddException(new ValidationException(message)));
}
public static Validation IsNotNull <T>(this Validation validation, T?theObject, string paramName)
where T : struct
{
return(theObject == null?validation.AddException(ValidationException.IsRequired(paramName)) : validation);
}
public static Validation HasExactly <T>(this Validation validation, IEnumerable <T> items, int expected, string message)
{
return((items != null && items.Count() == expected)
? validation
: validation.AddException(new ValidationException(message)));
}