protected ValidatableViewModel(IErrorsContainer <ValidationError> errorsContainer, ArrayFormat errorFormat = ArrayFormat.First)
{
ErrorsContainer = errorsContainer;
ErrorsContainer.ErrorsChanged += OnErrorsChanged;
dataErrorInfoProvider = new DataErrorInfoProvider(ErrorsContainer, errorFormat, ObjectErrorPropertyName);
}
public DataErrorInfoProvider(IErrorsContainer <TError> errorsContainer, Func <IEnumerable <TError>, string> errorsFormatter, string objectPropertyName = "")
{
Contract.Requires <ArgumentNullException>(errorsContainer != null, "errorsContainer");
Contract.Requires <ArgumentNullException>(objectPropertyName != null, "objectPropertyName");
Contract.Requires <ArgumentNullException>(errorsFormatter != null, "errorsFormatter");
ObjectPropertyName = objectPropertyName;
ErrorsContainer = errorsContainer;
ErrorsFormatter = errorsFormatter;
}
public static void ClearErrors <TError, TProperty>(this IErrorsContainer <TError> errorsContainer, Expression <Func <TProperty> > propertySelector)
where TError : ValidationError
{
Ensure.NotNull(errorsContainer);
Ensure.NotNull(propertySelector);
string propertyName = ExpressionUtils.GetPropertyName(propertySelector);
errorsContainer.ClearErrors(propertyName);
}
public static IEnumerable <TError> GetErrors <TError, TProperty>(this IErrorsContainer <TError> errorsContainer, Expression <Func <TProperty> > propertySelector)
where TError : ValidationError
{
Ensure.NotNull(errorsContainer);
Ensure.NotNull(propertySelector);
string propertyName = ExpressionUtils.GetPropertyName(propertySelector);
return(errorsContainer.GetErrors(propertyName));
}
public static void ClearAndSetErrors <TError>(this IErrorsContainer <TError> errorsContainer, IEnumerable <TError> errors)
where TError : ValidationError
{
Ensure.NotNull(errorsContainer);
errorsContainer.ClearAllErrors();;
if (!errors.IsNullOrEmpty())
{
errorsContainer.SetErrors(errors);
}
;
}
public static void ClearErrors <TError, TEntity, TProperty>(
this IErrorsContainer <TError> errorContainer, Expression <Func <TEntity, TProperty> > propertyExpression)
where TError : ValidationError
{
if (propertyExpression == null)
{
throw new ArgumentNullException("propertyExpression");
}
string propertyName = ExpressionUtils.GetPropertyName(propertyExpression);
errorContainer.ClearErrors(propertyName);
}
public DataErrorInfoProvider(IErrorsContainer <TError> errorsContainer, ArrayFormat arrayFormat = ArrayFormat.First, string objectPropertyName = "")
: this(errorsContainer, ArrayFormatter.GetErrorFormatter(arrayFormat) as Func <IEnumerable <TError>, string>, objectPropertyName)
{
}
