/// <summary>
/// Validates the specified entity with respect to the current validation attribute.
/// </summary>
/// <param name="entity">The entity to validate.</param>
/// <param name="validationContext">The context information about the validation operation.</param>
/// <returns>
/// An instance of the <see cref="T:System.ComponentModel.DataAnnotations.ValidationResult" /> class.
/// </returns>
protected override ValidationResult IsValid(object entity, ValidationContext validationContext)
{
var displayName = validationContext.DisplayName;
var compositeResults = new CompositeValidationResult(string.Format("Validation for {0} failed!", displayName));
if (entity is IEnumerable)
{
IEnumerable items = (IEnumerable)entity;
var index = 0;
foreach (var item in items)
{
var validator = new DataAnnotationValidator();
validator.TryValidate(item);
var results = validator.ValidationResults;
if (results.Count != 0)
{
results.ForEach(x => compositeResults.AddResult(x, displayName, index));
}
index++;
}
return compositeResults;
}
else
{
var validator = new DataAnnotationValidator();
validator.TryValidate(entity);
var results = validator.ValidationResults;
if (results.Count != 0)
{
results.ForEach(x => compositeResults.AddResult(x, displayName));
return compositeResults;
}
}
return ValidationResult.Success;
}
public void 驗證GrandFather()
{
var grandFather = new GrandFather
{
Name = "hi",
Fathers = new List<Father>
{
new Father
{
Name= "Father1",
Age=81,
Sons = new List<Son>
{
new Son{Name="91", Age=300},
new Son{Name = "92", Age= 11},
new Son{Name = "93", Age= 202},
}
},
new Father
{
Age=82,
Sons = new List<Son>
{
new Son{Name="F2_1", Age=-1},
new Son{Name = "F2_2", Age= -2},
new Son{Name = "F2_3", Age= 4},
}
},
}
};
var validator = new DataAnnotationValidator();
var isValid = validator.TryValidate(grandFather);
Assert.AreEqual(false, isValid);
Assert.AreEqual(7, validator.ValidationResults.Count);
}
public void 驗證Sons_IEnumerable()
{
var father = new Father
{
Age = 90,
Name = "Fat",
Sons = Enumerable.Repeat<Son>(new Son { Name = "91", Age = 300 }, 2)
};
var validator = new DataAnnotationValidator();
var isValid = validator.TryValidate(father);
Assert.AreEqual(false, isValid);
Assert.AreEqual(2, validator.ValidationResults.Count);
}
public void 驗證ProductModel()
{
var productModel = new ProductModel
{
MyPerson = new Person { Id = 1, Name = string.Empty, Birthday = new DateTime(1991, 9, 1) },
MyProduct = new Product { Cost = 100, SellPrice = 105 }
};
var validator = new DataAnnotationValidator();
var isValid = validator.TryValidate(productModel);
Assert.AreEqual(false, isValid);
Assert.AreEqual(2, validator.ValidationResults.Count);
}
public void 驗證List集合是否能正常驗證Validation()
{
var father = new Father
{
Name = "Joey",
Age = 999,
Sons = new List<Son>
{
new Son{Age=0},
new Son{Name=string.Empty, Age=200},
new Son{Name="91", Age=300},
}
};
var validator = new DataAnnotationValidator();
var isValid = validator.TryValidate(father);
Assert.AreEqual(false, isValid);
Assert.AreEqual(6, validator.ValidationResults.Count);
}
public static void BeforeFeature()
{
target = new DataAnnotationValidator();
}
