Class ComparableNullOrNotNegativeAttribute<T>

Namespace

Ecng.ComponentModel

Assembly

Ecng.ComponentModel.dll

Indicates that a comparable value must be either null or not negative.

public abstract class ComparableNullOrNotNegativeAttribute<T> : ComparableValidationAttribute<T>, IValidator where T : struct, IComparable<T>

Type Parameters

T

The type of value to compare. Must be a struct implementing IComparable<T>.

Inheritance

object

Attribute

ValidationAttribute

ComparableValidationAttribute<T>

ComparableNullOrNotNegativeAttribute<T>

Implements

IValidator

Derived

DecimalNullOrNotNegativeAttribute

IntNullOrNotNegativeAttribute

TimeSpanNullOrNotNegativeAttribute

Inherited Members

ComparableValidationAttribute<T>.IsValid(object)

ComparableValidationAttribute<T>.DisableNullCheck

ValidationAttribute.FormatErrorMessage(string)

ValidationAttribute.IsValid(object, ValidationContext)

ValidationAttribute.GetValidationResult(object, ValidationContext)

ValidationAttribute.Validate(object, string)

ValidationAttribute.Validate(object, ValidationContext)

ValidationAttribute.ErrorMessageString

ValidationAttribute.RequiresValidationContext

ValidationAttribute.ErrorMessage

ValidationAttribute.ErrorMessageResourceName

ValidationAttribute.ErrorMessageResourceType

Attribute.GetCustomAttributes(MemberInfo, Type)

Attribute.GetCustomAttributes(MemberInfo, Type, bool)

Attribute.GetCustomAttributes(MemberInfo)

Attribute.GetCustomAttributes(MemberInfo, bool)

Attribute.IsDefined(MemberInfo, Type)

Attribute.IsDefined(MemberInfo, Type, bool)

Attribute.GetCustomAttribute(MemberInfo, Type)

Attribute.GetCustomAttribute(MemberInfo, Type, bool)

Attribute.GetCustomAttributes(ParameterInfo)

Attribute.GetCustomAttributes(ParameterInfo, Type)

Attribute.GetCustomAttributes(ParameterInfo, Type, bool)

Attribute.GetCustomAttributes(ParameterInfo, bool)

Attribute.IsDefined(ParameterInfo, Type)

Attribute.IsDefined(ParameterInfo, Type, bool)

Attribute.GetCustomAttribute(ParameterInfo, Type)

Attribute.GetCustomAttribute(ParameterInfo, Type, bool)

Attribute.GetCustomAttributes(Module, Type)

Attribute.GetCustomAttributes(Module)

Attribute.GetCustomAttributes(Module, bool)

Attribute.GetCustomAttributes(Module, Type, bool)

Attribute.IsDefined(Module, Type)

Attribute.IsDefined(Module, Type, bool)

Attribute.GetCustomAttribute(Module, Type)

Attribute.GetCustomAttribute(Module, Type, bool)

Attribute.GetCustomAttributes(Assembly, Type)

Attribute.GetCustomAttributes(Assembly, Type, bool)

Attribute.GetCustomAttributes(Assembly)

Attribute.GetCustomAttributes(Assembly, bool)

Attribute.IsDefined(Assembly, Type)

Attribute.IsDefined(Assembly, Type, bool)

Attribute.GetCustomAttribute(Assembly, Type)

Attribute.GetCustomAttribute(Assembly, Type, bool)

Attribute.Equals(object)

Attribute.GetHashCode()

Attribute.Match(object)

Attribute.IsDefaultAttribute()

Attribute.TypeId

object.GetType()

object.MemberwiseClone()

object.ToString()

object.Equals(object, object)

object.ReferenceEquals(object, object)

Extension Methods

AsyncHelper.FromResult<TValue>(TValue)

AsyncHelper.ToCompleteSource<TValue>(TValue)

CompareHelper.IsDefault<T>(T)

CompareHelper.IsRuntimeDefault<T>(T)

Converter.TypedTo<TFrom, TTo>(TFrom)

DelegateHelper.AddDelegate<TDelegate>(TDelegate, TDelegate)

DelegateHelper.GetInvocationList<TDelegate>(TDelegate)

DelegateHelper.RemoveAllDelegates<TDelegate>(TDelegate)

DelegateHelper.RemoveDelegate<TDelegate>(TDelegate, TDelegate)

DisposableHelper.MakeDisposable<T>(T, Action<T>)

Enumerator.IsDefined<T>(T)

Enumerator.SplitMask<T>(T)

NullableHelper.Convert<T, TResult>(T, Func<T, TResult>, Func<TResult>)

NullableHelper.IsNull<T>(T)

NullableHelper.IsNull<T>(T, bool)

TupleHelper.ToValues<T>(T)

TypeHelper.CheckOnNull<T>(T, string)

TypeHelper.DoDispose<TSource>(TSource)

TypeHelper.ToScope<T>(T, bool)

NetworkHelper.Format<T>(T, bool)

PersistableHelper.TrySerialize<T>(T, out SettingsStorage)

XamlHelper.CopyToClipboard<T>(T)

Paths.SerializeToString<T>(T, bool)

Paths.Serialize<T>(T, bool)

Paths.Serialize<T>(T, string, bool)

CompareHelper.Compare(object, object)

Converter.To(object, Type)

Converter.To<T>(object)

Enumerator.GetAttributeOfType<TAttribute>(object)

Enumerator.IsEnumBrowsable(object)

Enumerator.SplitMask2(object)

TypeHelper.HasProperty(object, string)

EntityPropertyHelper.GetPropValue(object, string, Func<object, string, object>, IDictionary<string, object>)

Extensions.GetBasicProperties(object, int)

Extensions.GetDisplayName(object)

Extensions.GetFieldDescription(object)

Extensions.GetFieldDisplayName(object)

Extensions.GetFieldIcon(object)

JsonHelper.ToJson(object, bool)

JsonHelper.ToJson(object, bool, JsonSerializerSettings)

PersistableHelper.ToStorage(object, bool)

EditorExtensions.ToItemsSource(object, Type, bool?, ListSortDirection?, Func<IItemsSourceItem, bool>, Func<object, string>, Func<object, string>)

XamlHelper.EnsureUIThread(object)

XamlHelper.ShowModel<TWindow>(object, DependencyObject)

XamlHelper.WpfCast<T>(object)

VirtualPropertyRegistry.TryGetVirtualValue(object, string, out object)

Constructors

ComparableNullOrNotNegativeAttribute()

protected ComparableNullOrNotNegativeAttribute()

Methods

Validate(T?, bool)

Validates that the value is null or not negative.

protected override bool Validate(T? value, bool disableNullCheck)

Parameters

value T?

The nullable value to validate.

disableNullCheck bool

A flag indicating whether null check should be disabled (not used in this case).

Returns

bool

True if the value is null or the non-null value is not negative; otherwise, false.