public static bool IsValid(this IValidatableObject o, out List <ValidationResult> errors)
{
ValidationContext ctx = new ValidationContext(o, null, null);
errors = new List <ValidationResult>();
return(Validator.TryValidateObject(o, ctx, errors, true));
}
/// <summary>Wraps up all the validation.</summary>
public static string CompletelyValidate(IValidatableObject value)
{
var passThrough = ObjectValidator.TryValidateFullObject(value);
var passedTo = ObjectValidator.GetValidationResults(passThrough);
return(passedTo);
}
public static void IsValid(
[ValidatedNotNull] IValidatableObject validatableArg,
string argName,
bool isNullValid = false)
{
if (validatableArg is null)
{
if (isNullValid)
{
return;
}
throw new ArgumentNullException(argName);
}
var validationResults = new List <ValidationResult>();
var isValid = Validator.TryValidateObject(
validatableArg,
new ValidationContext(validatableArg),
validationResults);
if (!isValid)
{
throw new ArgumentException(
$"The input is invalid. Validation errors:{Environment.NewLine}{string.Join(Environment.NewLine, validationResults)}",
argName);
}
}
//private ObjectValidator()
//{ }
/// <summary>Validates an object.</summary>
/// <param name="value">The object to validate.</param>
/// <exception cref="ValidationException">The value is invalid.</exception>
public static void Validate(IValidatableObject value)
{
Validator.ValidateObject(value, new ValidationContext(value));
//No access to instance members
//_duh = 10;
}
public override IEnumerable <ModelValidationResult> Validate(object container)
{
// NOTE: Container is never used here, because IValidatableObject doesn't give you
// any way to get access to your container.
object model = Metadata.Model;
if (model == null)
{
return(Enumerable.Empty <ModelValidationResult>());
}
IValidatableObject validatable = model as IValidatableObject;
if (validatable == null)
{
throw new InvalidOperationException(
String.Format(
CultureInfo.CurrentCulture,
"The model object inside the metadata claimed to be compatible with {0}, but was actually {1}.",
typeof(IValidatableObject).FullName,
model.GetType().FullName
)
);
}
ValidationContext validationContext = new ValidationContext(validatable, null, null)
{
DisplayName = Metadata.DisplayName,
MemberName = Metadata.PropertyName
};
return(ConvertResults(validatable.Validate(validationContext)));
}
/// <summary>
/// adds notifications to the page due to a isolated form post (multiple forms present)
/// </summary>
/// <param name="model"></param>
public void AddNotifications(IValidatableObject model)
{
var notifications = new List <Notification>();
var rawExistingNotifications = TempData["Notifications"] as string;
if (!string.IsNullOrEmpty(rawExistingNotifications))
{
var existingNotifications = JsonConvert.DeserializeObject <List <Notification> >(rawExistingNotifications);
notifications.AddRange(existingNotifications);
}
var validationResults = new List <ValidationResult>();
Validator.TryValidateObject(model, new ValidationContext(model, null, null), validationResults, false);
foreach (var validationResult in validationResults)
{
notifications.Add(new Notification()
{
Message = validationResult.ErrorMessage,
Type = NotificationTypeEnum.Error
});
}
TempData["Notifications"] = JsonConvert.SerializeObject(notifications);
}
public override IEnumerable <ModelValidationResult> Validate(
ModelMetadata metadata,
object container
)
{
// NOTE: Container is never used here, because IValidatableObject doesn't give you
// any way to get access to your container.
object model = metadata.Model;
if (model == null)
{
return(Enumerable.Empty <ModelValidationResult>());
}
IValidatableObject validatable = model as IValidatableObject;
if (validatable == null)
{
throw Error.InvalidOperation(
SRResources.ValidatableObjectAdapter_IncompatibleType,
model.GetType()
);
}
ValidationContext validationContext = new ValidationContext(validatable, null, null);
return(ConvertResults(validatable.Validate(validationContext)));
}
private static ValidationResult Validate(ValidationContext context)
{
var properties = context.ObjectType.GetProperties();
if (context.ObjectInstance is IValidatableObject)
{
IValidatableObject valid = (IValidatableObject)context.ObjectInstance;
var validationResults = valid.Validate(context);
if (validationResults != null && validationResults.Count() > 0)
{
return(valid.Validate(context).FirstOrDefault());
}
}
foreach (var property in properties)
{
var validationAttributes = property.GetCustomAttributes(false).OfType <ValidationAttribute>();
foreach (var attribute in validationAttributes)
{
bool isValid = attribute.IsValid(property.GetValue(context.ObjectInstance));
if (!isValid)
{
return(new ValidationResult(attribute.ErrorMessage, new[] { property.Name }));
}
}
}
return(null);
}
public override IEnumerable <ModelValidationResult> Validate(object container)
{
// NOTE: Container is never used here, because IValidatableObject doesn't give you
// any way to get access to your container.
object model = Metadata.Model;
if (model == null)
{
return(Enumerable.Empty <ModelValidationResult>());
}
IValidatableObject validatable = model as IValidatableObject;
if (validatable == null)
{
throw new InvalidOperationException(
String.Format(
CultureInfo.CurrentCulture,
MvcResources.ValidatableObjectAdapter_IncompatibleType,
typeof(IValidatableObject).FullName,
model.GetType().FullName));
}
ValidationContext validationContext = new ValidationContext(validatable, null, null);
return(ConvertResults(validatable.Validate(validationContext)));
}
public static void ForceValidation(ModelStateDictionary stateDictionary, Object m)
{
IValidatableObject model = null;
if (m is IValidatableObject)
{
model = m as IValidatableObject;
IEnumerable <ValidationResult> errors = model.Validate(new ValidationContext(model, null, null));
List <string> modelStateKeys = stateDictionary.Keys.ToList();
List <ModelState> modelStateValues = stateDictionary.Values.ToList();
foreach (ValidationResult error in errors)
{
List <string> errorMemberNames = error.MemberNames.ToList();
if (errorMemberNames.Count == 0)
{
errorMemberNames.Add(String.Empty);
}
foreach (string memberName in errorMemberNames)
{
int index = modelStateKeys.IndexOf(memberName);
if (index < 0 || !modelStateValues[index].Errors.Any(i => i.ErrorMessage == error.ErrorMessage))
{
stateDictionary.AddModelError(memberName, error.ErrorMessage);
}
}
}
}
}
public ObjectValidationResult ValidateObject(IValidatableObject validatableObject)
{
if (validatableObject == null)
{
return(new ObjectValidationResult
{
Message = "Object can not be null."
});
}
var validationResults =
validatableObject.Validate(new ValidationContext(this));
var enumerable =
validationResults as IList <ValidationResult> ?? validationResults.ToList();
if (enumerable.Any())
{
return(new ObjectValidationResult
{
Message = enumerable.First().ErrorMessage
});
}
return(new ObjectValidationResult
{
Success = true
});
}
/// <summary>
/// Check validity of the data re3cieved from the client, and correctly formats the error reponce if it's not valid
/// </summary>
/// <param name="model">The data that was received from the clinet and must b validity checked</param>
/// <param name="request">HTTPrequest that was recieved, this is used for correct serialisation using content negotiation that has occured</param>
/// <param name="validateAllProperties">Don't override unless you have a good reason</param>
/// <returns>Correctly formatted HTTPResponse mesasge with erros if erros have occured, or simply empty responce message with OK status code</returns>
public static HttpResponseMessage CheckModel(IValidatableObject model, HttpRequestMessage request)
{
bool validateAllProperties = true;
if (model == null)
{
return(request.CreateResponse(HttpStatusCode.BadRequest, ErrorResponse.NoDataRecieved));
}
ValidationContext validationContext = new ValidationContext(model, null, null);
List <ValidationResult> validationResults = new List <ValidationResult>();
bool isValid = Validator.TryValidateObject(model, validationContext, validationResults, validateAllProperties);
if (!isValid)
{
string validatioErrors = string.Empty;
int i = 1;
foreach (var validationErrror in validationResults)
{
validatioErrors += String.Format(" {0}:{1}", i++, validationErrror.ErrorMessage);
}
return(request.CreateResponse(HttpStatusCode.BadRequest, ErrorResponse.CreateModelError(validatioErrors)));
}
else
{
return(request.CreateResponse(HttpStatusCode.OK));
}
}
public static IEnumerable <ValidationResult> TryValidateFullObject(IValidatableObject value)
{
var validationResults = new List <ValidationResult>();
object p = Validator.TryValidateObject(value, new ValidationContext(value), validationResults, true);
return(validationResults);
}
/// <summary>
/// The IsEntityValid.
/// </summary>
/// <param name="entity">The entity.<see cref="IValidatableObject"/>.</param>
/// <returns>The .<see cref="IList{ValidationResult}"/>.</returns>
public static IList <ValidationResult> IsEntityValid(IValidatableObject entity)
{
var context = new ValidationContext(entity);
IList <ValidationResult> results = new List <ValidationResult>();
Validator.TryValidateObject(entity, context, results, true);
return(results);
}
/// <summary>
/// throws BadArgumentException if there is a problem with the token.
/// </summary>
/// <param name="request"></param>
#pragma warning disable CA1822
internal void ValidateRequest(IValidatableObject request)
{
#pragma warning restore CA1822
ValidationContext context = new ValidationContext(request, null, null);
ICollection <ValidationResult> validationResults = new List <ValidationResult>();
Validator.TryValidateObject(request, context, validationResults, true);
this.RaiseValidationErrors(validationResults);
}
/// <summary>
/// Validates a column of an IValidatableObject for use with IDataErrorInfo.
/// </summary>
/// <param name="instance"></param>
/// <param name="memberName"></param>
/// <returns>Validation error, or empty when valid.</returns>
public static string Validate(this IValidatableObject instance, string memberName)
{
var errors = instance.Validate(null)
.Where(vr => vr.MemberNames.Contains(memberName))
.ToList();
return(ValidateInner(errors));
}
public static bool TryValidate(IValidatableObject value, out IEnumerable <ValidationResult> errors)
{
var context = new ValidationContext(value);
var results = new List <ValidationResult>();
errors = results;
return(Validator.TryValidateObject(value, context, results));
}
public static string RaiseValidationAndGetResult(this IValidatableObject validatableObject, IDictionary <object, object> context)
{
string result = null;
var validationContext = new ValidationContext(validatableObject, context);
result = RaiseValidationAndGetResult(validatableObject, validationContext);
return(result);
}
/// <summary>Validates an object.</summary>
/// <param name="value">The object to validate.</param>
/// <returns>The list of validation results.</returns>
public static IEnumerable <ValidationResult> TryValidate(IValidatableObject value)
{
var results = new List <ValidationResult>();
var context = new ValidationContext(value);
Validator.TryValidateObject(value, context, results, true);
return(results);
}
public static IEnumerable <ValidationResult> Validate(this IValidatableObject source)
{
var context = new ValidationContext(source);
var errors = new Collection <ValidationResult>();
var results = Validator.TryValidateObject(source, context, errors, true);
return(errors);
}
/// <summary>Verifies an argument is not <see langword="null"/> and is valid.</summary>
/// <typeparam name="T">The type of the argument.</typeparam>
/// <param name="name">The name of the argument.</param>
/// <param name="value">The argument value.</param>
/// <exception cref="ArgumentNullException"><paramref name="value"/> is <see langword="null"/>.</exception>
/// <exception cref="ValidationException"><paramref name="value"/> is invalid.</exception>
public static void ArgumentIsValidAndNotNull(string name, IValidatableObject value)
{
Verify.ArgumentIsNotNull(name, value);
var context = new ValidationContext(value);
Validator.ValidateObject(value, context, true);
}
/// <summary>
/// Validate the given model and add errors
/// </summary>
/// <param name="model">The model to be validated</param>
/// <returns>Return <see cref="BizActionStatus.HasErrors" /></returns>
protected virtual bool ValidateModelFailed(IValidatableObject model)
{
var results = new List <ValidationResult>();
Validator.TryValidateObject(model, new ValidationContext(model), results);
AddValidationResults(results);
return(HasErrors);
}
public static void EnsureValid(this IValidatableObject input)
{
EnsureArg.IsNotNull(input, nameof(input));
if (!input.IsValid(out string errMessage))
{
throw new ValidationException(errMessage);
}
}
/// <summary>Attempts to validate an object.</summary>
/// <param name="value">The object to validate.</param>
/// <returns>The validation results.</returns>
public static List <ValidationResult> TryValidate(IValidatableObject value)
{
var context = new ValidationContext(value);
var errors = new List <ValidationResult>();
Validator.TryValidateObject(value, context, errors, true);
return(errors);
}
/// <summary>
/// Validates a validatable object.
/// </summary>
/// <param name="validatableObject">
/// The validatable object.
/// </param>
/// <returns>
/// A list of validation results.
/// </returns>
public static List <ValidationResult> Validate(this IValidatableObject validatableObject)
{
var validationResult = new List <ValidationResult>();
System.ComponentModel.DataAnnotations.Validator.TryValidateObject(
validatableObject, new ValidationContext(validatableObject, null, null), validationResult, true);
return(validationResult);
}
public static List <ValidationResult> GetValidationErrors(IValidatableObject obj)
{
var result = new List <ValidationResult>();
var validationContext = new ValidationContext(obj);
Validator.TryValidateObject(obj, validationContext, result);
obj.Validate(validationContext);
return(result);
}
public static List <ValidationResult> GetValidationErrors(this IValidatableObject validatableObject)
{
List <ValidationResult> results = new List <ValidationResult>();
var validationContext = new ValidationContext(validatableObject, null, null);
Validator.TryValidateObject(validatableObject, validationContext, results, true);
return(results);
}
/// <summary>
/// Validates this instance, and throws an exception when validation fails.
/// </summary>
/// <typeparam name="TException">The type of the exception.</typeparam>
/// <param name="instance">The instance.</param>
public static void Validate <TException>(this IValidatableObject instance)
where TException : Exception
{
var validationErrorMessage = instance.Validate();
if (!string.IsNullOrEmpty(validationErrorMessage))
{
throw (Exception)Activator.CreateInstance(typeof(TException), validationErrorMessage);
}
}
public bool ValidateDevice(IDeviceDataObject device)
{
IValidatableObject v = device as IValidatableObject;
if (v != null)
{
return(device.Validate());
}
return(false);
}
public bool modelStateIsValidAfterReRunValidationOnComplexAttributes(
ModelStateDictionary modelState, IValidatableObject model)
{
modelState.Clear();
var errors = model.Validate(new ValidationContext(model, null, null));
foreach(var error in errors)
foreach(var memberName in error.MemberNames)
modelState.AddModelError(memberName, error.ErrorMessage);
return modelState.IsValid;
}
public void Add(string key, IValidatableObject viewModel, string message = null)
{
_jObject[key] = JObject.FromObject(viewModel);
if (!string.IsNullOrEmpty(message))
{
_messages.Clear();
_messages.Add(message);
}
}
public static bool IsValidField(this ModelStateDictionary modelSate, string key, IValidatableObject validatableObject)
{
if (!modelSate.IsValidField(key)) return false;
var validationResults = validatableObject.Validate(new ValidationContext(validatableObject, null, null));
foreach (var validationResult in validationResults)
if (validationResult.MemberNames.Contains(key))
{
modelSate.AddModelError(key, validationResult.ErrorMessage);
return false;
}
return true;
}
public static ModelStateDictionary MergeWithValidatableObject(this ModelStateDictionary modelState, IValidatableObject obj)
{
IEnumerable<ValidationResult> errors = obj.Validate(new ValidationContext(obj, null, null));
foreach (ValidationResult error in errors)
foreach (string memberName in error.MemberNames)
{
if (modelState.ContainsKey(memberName))
modelState.AddModelError(memberName, error.ErrorMessage);
else
modelState.AddModelError(memberName, error.ErrorMessage);
}
return modelState;
}
public ObjectValidationResult ValidateObject(IValidatableObject validatableObject)
{
if (validatableObject == null)
{
return new ObjectValidationResult
{
Message = "Object can not be null."
};
}
var validationResults =
validatableObject.Validate(new ValidationContext(this));
var enumerable =
validationResults as IList<ValidationResult> ?? validationResults.ToList();
if (enumerable.Any())
{
return new ObjectValidationResult
{
Message = enumerable.First().ErrorMessage
};
}
return new ObjectValidationResult
{
Success = true
};
}
