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ASP.NET CORE基础教程

　　public abstract class ValidationAttribute : Attribute

　　{

　　///

Initializes a new instance of the class.

　　protected ValidationAttribute();

　　///

Initializes a new instance of the class by using the function that enables access to validation resources.

　　/// The function that enables access to validation resources.

　　/// errorMessageAccessor is null.

　　protected ValidationAttribute(Func errorMessageAccessor);

　　///

Initializes a new instance of the class by using the error message to associate with a validation control.

　　/// The error message to associate with a validation control.

　　protected ValidationAttribute(string errorMessage);

　　///

Gets or sets an error message to associate with a validation control if validation fails.

　　/// The error message that is associated with the validation control.

　　public string ErrorMessage { get; set; }

　　///

Gets or sets the error message resource name to use in order to look up the property value if validation fails.

　　/// The error message resource that is associated with a validation control.

　　public string ErrorMessageResourceName { get; set; }

　　///

Gets or sets the resource type to use for error-message lookup if validation fails.

　　/// The type of error message that is associated with a validation control.

　　public Type ErrorMessageResourceType { get; set; }

　　///

Gets the localized validation error message.

　　/// The localized validation error message.

　　protected string ErrorMessageString { get; }

　　///

Gets a value that indicates whether the attribute requires validation context.

　　/// true if the attribute requires validation context; otherwise, false.

　　public virtual bool RequiresValidationContext { get; }

　　///

Applies formatting to an error message, based on the data field where the error occurred.

　　/// The name to include in the formatted message.

　　/// An instance of the formatted error message.

　　public virtual string FormatErrorMessage(string name);

　　///

Checks whether the specified value is valid with respect to the current validation attribute.

　　/// The value to validate.

　　/// The context information about the validation operation.

　　/// An instance of the class.

　　public ValidationResult GetValidationResult(

　　object value,

　　ValidationContext validationContext);

　　///

Determines whether the specified value of the object is valid.

　　/// The value of the object to validate.

　　/// true if the specified value is valid; otherwise, false.

　　public virtual bool IsValid(object value);

　　///

Validates the specified value with respect to the current validation attribute.

　　/// The value to validate.

　　/// The context information about the validation operation.

　　/// An instance of the class.

　　protected virtual ValidationResult IsValid(

　　object value,

　　ValidationContext validationContext);

　　///

Validates the specified object.

　　/// The object to validate.

　　/// The object that describes the context where the validation checks are performed. This parameter cannot be null.

　　/// Validation failed.

　　public void Validate(object value, ValidationContext validationContext);

　　///

Validates the specified object.

　　/// The value of the object to validate.

　　/// The name to include in the error message.

　　/// value is not valid.

　　public void Validate(object value, string name);

　　}

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