ValidationAttribute.IsValid Method
Definition
Important
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Checks whether the specified object is valid.
Overloads
| IsValid(Object) |
Determines whether the specified value of the object is valid. |
| IsValid(Object, ValidationContext) |
Validates the specified value with respect to the current validation attribute. |
IsValid(Object)
- Source:
- ValidationAttribute.cs
- Source:
- ValidationAttribute.cs
- Source:
- ValidationAttribute.cs
Determines whether the specified value of the object is valid.
public:
virtual bool IsValid(System::Object ^ value);public:
abstract bool IsValid(System::Object ^ value);public virtual bool IsValid (object value);public virtual bool IsValid (object? value);public abstract bool IsValid (object value);abstract member IsValid : obj -> bool
override this.IsValid : obj -> boolabstract member IsValid : obj -> boolPublic Overridable Function IsValid (value As Object) As BooleanPublic MustOverride Function IsValid (value As Object) As BooleanParameters
- value
- Object
The value of the object to validate.
Returns
true if the specified value is valid; otherwise, false.
Exceptions
The current attribute is malformed.
Neither overload of IsValid has been implemented by a derived class.
Remarks
If you inherit from the ValidationAttribute class, you must implement the validation logic in this method.
Applies to
IsValid(Object, ValidationContext)
- Source:
- ValidationAttribute.cs
- Source:
- ValidationAttribute.cs
- Source:
- ValidationAttribute.cs
Validates the specified value with respect to the current validation attribute.
protected:
virtual System::ComponentModel::DataAnnotations::ValidationResult ^ IsValid(System::Object ^ value, System::ComponentModel::DataAnnotations::ValidationContext ^ validationContext);protected virtual System.ComponentModel.DataAnnotations.ValidationResult IsValid (object value, System.ComponentModel.DataAnnotations.ValidationContext validationContext);protected virtual System.ComponentModel.DataAnnotations.ValidationResult? IsValid (object? value, System.ComponentModel.DataAnnotations.ValidationContext validationContext);abstract member IsValid : obj * System.ComponentModel.DataAnnotations.ValidationContext -> System.ComponentModel.DataAnnotations.ValidationResult
override this.IsValid : obj * System.ComponentModel.DataAnnotations.ValidationContext -> System.ComponentModel.DataAnnotations.ValidationResultProtected Overridable Function IsValid (value As Object, validationContext As ValidationContext) As ValidationResultParameters
- value
- Object
The value to validate.
- validationContext
- ValidationContext
The context information about the validation operation.
Returns
An instance of the ValidationResult class.
Exceptions
The current attribute is malformed.
IsValid(Object, ValidationContext) has not been implemented by a derived class.
