/// <summary>
/// Sets the business rule validation result.
/// </summary>
/// <param name="validationResult">The business rule validation result.</param>
/// <exception cref="ArgumentNullException">The <paramref name="validationResult"/> is <c>null</c>.</exception>
protected void SetBusinessRuleValidationResult(IBusinessRuleValidationResult validationResult)
{
Argument.IsNotNull("validationResult", validationResult);
if (string.IsNullOrEmpty(validationResult.Message))
{
return;
}
var previousValidations = _internalValidationContext.GetBusinessRuleValidations();
// First, check if the same error already exists
bool alreadyExists = (from previousFieldValidation in previousValidations
where string.Compare(previousFieldValidation.Message, validationResult.Message) == 0
select previousFieldValidation).Any();
if (alreadyExists)
{
return;
}
_internalValidationContext.AddBusinessRuleValidationResult(validationResult);
if (!IsValidating)
{
switch (validationResult.ValidationResultType)
{
case ValidationResultType.Warning:
NotifyWarningsChanged(string.Empty, true);
break;
case ValidationResultType.Error:
NotifyErrorsChanged(string.Empty, true);
break;
}
}
}
/// <summary>
/// Validates the current object for field and business rule errors.
/// </summary>
/// <param name="force">If set to <c>true</c>, a validation is forced (even if the object knows it is already validated).</param>
/// <param name="validateDataAnnotations">If set to <c>true</c>, the data annotations will be checked. This value is only used if <paramref name="force"/> is set to <c>true</c>.</param>
/// <remarks>
/// To check whether this object contains any errors, use the <see cref="INotifyDataErrorInfo.HasErrors"/> property.
/// </remarks>
internal void Validate(bool force, bool validateDataAnnotations)
{
if (SuspendValidation)
{
return;
}
if (IsValidating)
{
return;
}
IsValidating = true;
var existingValidationContext = (ValidationContext)_validationContext;
bool hasErrors = existingValidationContext.HasErrors;
bool hasWarnings = existingValidationContext.HasWarnings;
var validationContext = new ValidationContext();
var changes = new List<ValidationContextChange>();
var validator = GetValidator();
if (validator != null)
{
validator.BeforeValidation(this, existingValidationContext.GetFieldValidations(), existingValidationContext.GetBusinessRuleValidations());
}
OnValidating(validationContext);
CatchUpWithSuspendedAnnotationsValidation();
if (force && validateDataAnnotations)
{
var type = GetType();
var ignoredOrFailedPropertyValidations = _propertyValuesIgnoredOrFailedForValidation[type];
// In forced mode, validate all registered properties for annotations
var catelTypeInfo = PropertyDataManager.GetCatelTypeInfo(type);
foreach (var propertyData in catelTypeInfo.GetCatelProperties())
{
var propertyInfo = propertyData.Value.GetPropertyInfo(type);
if (propertyInfo == null || !propertyInfo.HasPublicGetter)
{
// Note: non-public getter, do not validate
ignoredOrFailedPropertyValidations.Add(propertyData.Key);
continue;
}
var propertyValue = GetValue(propertyData.Value);
ValidatePropertyUsingAnnotations(propertyData.Key, propertyValue, propertyData.Value);
}
#if !WINDOWS_PHONE && !NETFX_CORE && !PCL && !NET35
// Validate non-catel properties as well for attribute validation
foreach (var propertyInfo in catelTypeInfo.GetNonCatelProperties())
{
if (_firstAnnotationValidation)
{
if (propertyInfo.Value.IsDecoratedWithAttribute(typeof(ExcludeFromValidationAttribute)))
{
ignoredOrFailedPropertyValidations.Add(propertyInfo.Key);
}
}
if (!propertyInfo.Value.HasPublicGetter)
{
// Note: non-public getter, do not validate
ignoredOrFailedPropertyValidations.Add(propertyInfo.Key);
continue;
}
// TODO: Should we check for annotations attributes?
if (ignoredOrFailedPropertyValidations.Contains(propertyInfo.Key))
{
continue;
}
try
{
var propertyValue = propertyInfo.Value.PropertyInfo.GetValue(this, null);
ValidatePropertyUsingAnnotations(propertyInfo.Key, propertyValue, null);
}
catch (Exception ex)
{
Log.Warning(ex, "Failed to validate property '{0}.{1}', adding it to the ignore list", type.Name, propertyInfo.Key);
ignoredOrFailedPropertyValidations.Add(propertyInfo.Key);
}
}
_firstAnnotationValidation = false;
#endif
}
if (!IsValidated || force)
{
lock (_validationLock)
{
var fieldValidationResults = new List<IFieldValidationResult>();
var businessRuleValidationResults = new List<IBusinessRuleValidationResult>();
#region Fields
if (validator != null)
{
validator.BeforeValidateFields(this, validationContext.GetFieldValidations());
}
OnValidatingFields(validationContext);
if (validator != null)
{
validator.ValidateFields(this, fieldValidationResults);
}
#if !WINDOWS_PHONE && !NETFX_CORE && !PCL && !NET35
// Support annotation validation
fieldValidationResults.AddRange(from fieldAnnotationValidation in _dataAnnotationValidationResults
where !string.IsNullOrEmpty(fieldAnnotationValidation.Value)
select (IFieldValidationResult)FieldValidationResult.CreateError(fieldAnnotationValidation.Key, fieldAnnotationValidation.Value));
#endif
ValidateFields(fieldValidationResults);
OnValidatedFields(validationContext);
if (validator != null)
{
validator.AfterValidateFields(this, fieldValidationResults);
}
// As the last step, sync the field validation results with the context
foreach (var fieldValidationResult in fieldValidationResults)
{
validationContext.AddFieldValidationResult(fieldValidationResult);
}
#endregion
#region Business rules
if (validator != null)
{
validator.BeforeValidateBusinessRules(this, validationContext.GetBusinessRuleValidations());
}
OnValidatingBusinessRules(validationContext);
if (validator != null)
{
validator.ValidateBusinessRules(this, businessRuleValidationResults);
}
ValidateBusinessRules(businessRuleValidationResults);
OnValidatedBusinessRules(validationContext);
if (validator != null)
{
validator.AfterValidateBusinessRules(this, businessRuleValidationResults);
}
// As the last step, sync the field validation results with the context
foreach (var businessRuleValidationResult in businessRuleValidationResults)
{
validationContext.AddBusinessRuleValidationResult(businessRuleValidationResult);
}
#endregion
if (validator != null)
{
validator.Validate(this, validationContext);
}
IsValidated = true;
// Manual sync to get the changes
changes = existingValidationContext.SynchronizeWithContext(validationContext);
}
}
OnValidated(validationContext);
if (validator != null)
{
validator.AfterValidation(this, validationContext.GetFieldValidations(), validationContext.GetBusinessRuleValidations());
}
#region Notify changes
bool hasNotifiedBusinessWarningsChanged = false;
bool hasNotifiedBusinessErrorsChanged = false;
foreach (var change in changes)
{
var changeAsFieldValidationResult = change.ValidationResult as IFieldValidationResult;
var changeAsBusinessRuleValidationResult = change.ValidationResult as IBusinessRuleValidationResult;
if (changeAsFieldValidationResult != null)
{
switch (change.ValidationResult.ValidationResultType)
{
case ValidationResultType.Warning:
NotifyWarningsChanged(changeAsFieldValidationResult.PropertyName, false);
break;
case ValidationResultType.Error:
NotifyErrorsChanged(changeAsFieldValidationResult.PropertyName, false);
break;
default:
throw new ArgumentOutOfRangeException();
}
}
else if (changeAsBusinessRuleValidationResult != null)
{
switch (change.ValidationResult.ValidationResultType)
{
case ValidationResultType.Warning:
if (!hasNotifiedBusinessWarningsChanged)
{
hasNotifiedBusinessWarningsChanged = true;
NotifyWarningsChanged(string.Empty, false);
}
break;
case ValidationResultType.Error:
if (!hasNotifiedBusinessErrorsChanged)
{
hasNotifiedBusinessErrorsChanged = true;
NotifyErrorsChanged(string.Empty, false);
}
break;
default:
throw new ArgumentOutOfRangeException();
}
}
}
if (_validationContext.HasWarnings != hasWarnings)
{
RaisePropertyChanged(HasWarningsMessageProperty);
}
if (_validationContext.HasErrors != hasErrors)
{
RaisePropertyChanged(HasErrorsMessageProperty);
}
#endregion
IsValidating = false;
}
public void CorrectlySynchronizesWithRemovedBusinessRuleError()
{
var fieldValidationResults1 = new List<IFieldValidationResult>();
fieldValidationResults1.Add(FieldValidationResult.CreateWarning("MyProperty", "FieldWarning"));
fieldValidationResults1.Add(FieldValidationResult.CreateError("MyProperty", "FieldError"));
var businessRuleValidationResults1 = new List<IBusinessRuleValidationResult>();
businessRuleValidationResults1.Add(BusinessRuleValidationResult.CreateWarning("BusinessRuleWarning"));
businessRuleValidationResults1.Add(BusinessRuleValidationResult.CreateError("BusinessRuleError"));
var context1 = new ValidationContext(fieldValidationResults1, businessRuleValidationResults1);
var fieldValidationResults2 = new List<IFieldValidationResult>();
fieldValidationResults2.Add(FieldValidationResult.CreateWarning("MyProperty", "FieldWarning"));
fieldValidationResults2.Add(FieldValidationResult.CreateError("MyProperty", "FieldError"));
var businessRuleValidationResults2 = new List<IBusinessRuleValidationResult>();
businessRuleValidationResults2.Add(BusinessRuleValidationResult.CreateWarning("BusinessRuleWarning"));
var context2 = new ValidationContext(fieldValidationResults2, businessRuleValidationResults2);
context1.SynchronizeWithContext(context2);
// First context should now equal second context
int counter;
var fieldValidations = context1.GetFieldValidations();
Assert.AreEqual(2, fieldValidations.Count);
counter = -1;
counter++;
Assert.AreEqual("MyProperty", fieldValidations[counter].PropertyName);
Assert.AreEqual("FieldWarning", fieldValidations[counter].Message);
Assert.AreEqual(ValidationResultType.Warning, fieldValidations[counter].ValidationResultType);
counter++;
Assert.AreEqual("MyProperty", fieldValidations[counter].PropertyName);
Assert.AreEqual("FieldError", fieldValidations[counter].Message);
Assert.AreEqual(ValidationResultType.Error, fieldValidations[counter].ValidationResultType);
var businessRuleValidations = context1.GetBusinessRuleValidations();
Assert.AreEqual(1, businessRuleValidations.Count);
counter = -1;
counter++;
Assert.AreEqual("BusinessRuleWarning", businessRuleValidations[counter].Message);
Assert.AreEqual(ValidationResultType.Warning, businessRuleValidations[counter].ValidationResultType);
}
public void ReturnsRightValidationsForEmptyContextWithTag()
{
var context = new ValidationContext();
var businessRuleValidations = context.GetBusinessRuleValidations("tag");
Assert.AreEqual(0, businessRuleValidations.Count);
}
/// <summary>
/// Validates the current object for field and business rule errors.
/// </summary>
/// <param name="force">If set to <c>true</c>, a validation is forced (even if the object knows it is already validated).</param>
/// <param name="validateDataAnnotations">If set to <c>true</c>, the data annotations will be checked. This value is only used if <paramref name="force"/> is set to <c>true</c>.</param>
/// <remarks>
/// To check whether this object contains any errors, use the ValidationContext property.
/// </remarks>
internal void Validate(bool force, bool validateDataAnnotations)
{
if (IsValidating)
{
return;
}
if (IsValidationSuspended)
{
return;
}
IsValidating = true;
var existingValidationContext = _validationContext;
if (existingValidationContext == null)
{
existingValidationContext = new ValidationContext();
}
var hasErrors = existingValidationContext.HasErrors;
var hasWarnings = existingValidationContext.HasWarnings;
var validationContext = new ValidationContext();
var changes = new List <ValidationContextChange>();
var validator = GetValidator();
if (validator != null)
{
validator.BeforeValidation(this, existingValidationContext.GetFieldValidations(), existingValidationContext.GetBusinessRuleValidations());
}
OnValidating(validationContext);
if (force && validateDataAnnotations)
{
var type = GetType();
var ignoredOrFailedPropertyValidations = PropertiesNotCausingValidation[type];
// In forced mode, validate all registered properties for annotations
var catelTypeInfo = PropertyDataManager.GetCatelTypeInfo(type);
foreach (var propertyData in catelTypeInfo.GetCatelProperties())
{
if (propertyData.Value.IsModelBaseProperty)
{
continue;
}
var propertyInfo = propertyData.Value.GetPropertyInfo(type);
if (propertyInfo == null || !propertyInfo.HasPublicGetter)
{
// Note: non-public getter, do not validate
ignoredOrFailedPropertyValidations.Add(propertyData.Key);
continue;
}
ValidatePropertyUsingAnnotations(propertyData.Key);
}
#if !NETFX_CORE && !PCL
// Validate non-catel properties as well for attribute validation
foreach (var propertyInfo in catelTypeInfo.GetNonCatelProperties())
{
if (_firstAnnotationValidation)
{
if (propertyInfo.Value.IsDecoratedWithAttribute <ExcludeFromValidationAttribute>())
{
ignoredOrFailedPropertyValidations.Add(propertyInfo.Key);
}
}
if (!propertyInfo.Value.HasPublicGetter)
{
// Note: non-public getter, do not validate
ignoredOrFailedPropertyValidations.Add(propertyInfo.Key);
continue;
}
// TODO: Should we check for annotations attributes?
if (ignoredOrFailedPropertyValidations.Contains(propertyInfo.Key))
{
continue;
}
try
{
ValidatePropertyUsingAnnotations(propertyInfo.Key);
}
catch (Exception ex)
{
Log.Warning(ex, "Failed to validate property '{0}.{1}', adding it to the ignore list", type.Name, propertyInfo.Key);
ignoredOrFailedPropertyValidations.Add(propertyInfo.Key);
}
}
_firstAnnotationValidation = false;
#endif
}
if (!_isValidated || force)
{
lock (_validationContext)
{
var fieldValidationResults = new List <IFieldValidationResult>();
var businessRuleValidationResults = new List <IBusinessRuleValidationResult>();
#region Fields
if (validator != null)
{
validator.BeforeValidateFields(this, validationContext.GetFieldValidations());
}
OnValidatingFields(validationContext);
if (validator != null)
{
validator.ValidateFields(this, fieldValidationResults);
}
#if !NETFX_CORE && !PCL
// Support annotation validation
fieldValidationResults.AddRange(from fieldAnnotationValidation in _dataAnnotationValidationResults
where !string.IsNullOrEmpty(fieldAnnotationValidation.Value)
select(IFieldValidationResult) FieldValidationResult.CreateError(fieldAnnotationValidation.Key, fieldAnnotationValidation.Value));
#endif
ValidateFields(fieldValidationResults);
OnValidatedFields(validationContext);
if (validator != null)
{
validator.AfterValidateFields(this, fieldValidationResults);
}
// As the last step, sync the field validation results with the context
foreach (var fieldValidationResult in fieldValidationResults)
{
validationContext.AddFieldValidationResult(fieldValidationResult);
}
#endregion
#region Business rules
if (validator != null)
{
validator.BeforeValidateBusinessRules(this, validationContext.GetBusinessRuleValidations());
}
OnValidatingBusinessRules(validationContext);
if (validator != null)
{
validator.ValidateBusinessRules(this, businessRuleValidationResults);
}
ValidateBusinessRules(businessRuleValidationResults);
OnValidatedBusinessRules(validationContext);
if (validator != null)
{
validator.AfterValidateBusinessRules(this, businessRuleValidationResults);
}
// As the last step, sync the field validation results with the context
foreach (var businessRuleValidationResult in businessRuleValidationResults)
{
validationContext.AddBusinessRuleValidationResult(businessRuleValidationResult);
}
#endregion
if (validator != null)
{
validator.Validate(this, validationContext);
}
_isValidated = true;
// Manual sync to get the changes
changes = existingValidationContext.SynchronizeWithContext(validationContext);
}
}
OnValidated(validationContext);
if (validator != null)
{
validator.AfterValidation(this, validationContext.GetFieldValidations(), validationContext.GetBusinessRuleValidations());
}
#region Notify changes
var hasNotifiedBusinessWarningsChanged = false;
var hasNotifiedBusinessErrorsChanged = false;
foreach (var change in changes)
{
var changeAsFieldValidationResult = change.ValidationResult as IFieldValidationResult;
var changeAsBusinessRuleValidationResult = change.ValidationResult as IBusinessRuleValidationResult;
if (changeAsFieldValidationResult != null)
{
switch (change.ValidationResult.ValidationResultType)
{
case ValidationResultType.Warning:
NotifyWarningsChanged(changeAsFieldValidationResult.PropertyName, false);
break;
case ValidationResultType.Error:
NotifyErrorsChanged(changeAsFieldValidationResult.PropertyName, false);
break;
default:
throw new ArgumentOutOfRangeException();
}
}
else if (changeAsBusinessRuleValidationResult != null)
{
switch (change.ValidationResult.ValidationResultType)
{
case ValidationResultType.Warning:
if (!hasNotifiedBusinessWarningsChanged)
{
hasNotifiedBusinessWarningsChanged = true;
NotifyWarningsChanged(string.Empty, false);
}
break;
case ValidationResultType.Error:
if (!hasNotifiedBusinessErrorsChanged)
{
hasNotifiedBusinessErrorsChanged = true;
NotifyErrorsChanged(string.Empty, false);
}
break;
default:
throw new ArgumentOutOfRangeException();
}
}
}
if (_validationContext.HasWarnings != hasWarnings)
{
RaisePropertyChanged(this, new PropertyChangedEventArgs(nameof(HasWarnings)), false, false);
RaisePropertyChanged(this, new PropertyChangedEventArgs(HasWarningsMessageProperty), false, false);
}
if (_validationContext.HasErrors != hasErrors)
{
RaisePropertyChanged(this, new PropertyChangedEventArgs(nameof(HasErrors)), false, false);
RaisePropertyChanged(this, new PropertyChangedEventArgs(HasErrorsMessageProperty), false, false);
}
#endregion
IsValidating = false;
}