Class ArgumentValidator<T>

An argument validator.

public sealed class ArgumentValidator<T>

Inherited Members: object.ToString()

object.Equals(object)

object.Equals(object, object)

object.ReferenceEquals(object, object)

object.GetHashCode()

object.GetType()

Remarks

Fluent validation methods follow the conventions of validation data annotation attributes:

When argument types are nullable, validation methods like IsNotNull<T>(ArgumentValidator<T>) can be used to ensure they have a value (similar to annotating a property with [RequiredAttribute]).
Validation methods that perform various checks against values (like IsGreaterThan<T>(ArgumentValidator<T>, T)) will not perform their validation check when the value is nullable and its value is null.

Thus, validation for various types should be performed like this:

Required arguments for reference types (e.g., string) should always start with a check to ensure the value is not null (e.g., IsNotNull<T>(ArgumentValidator<T>) or IsNotNullOrEmpty(ArgumentValidator<string>)), followed by whatever special validation is required.
Required arguments for value types (e.g., int) should not use nullable types and can simply include whatever special validation is required.
Optional arguments for reference types should simply include whatever special validation is required.
Optional arguments for value types should use nullable types and simply include whatever special validation is required.

Initializes a new instance of the ArgumentValidator<T> class.

public ArgumentValidator(T value, string propertyName)

value T: The argument value.
propertyName string: The workflow argument property name, which will be used in error exception messages.

Gets the workflow argument property name, which will be used in error exception messages.

public string PropertyName { get; }

Gets the argument value.

public T Value { get; }