public class RequiresAttribute : DependencyValidationAttribute
Public Class RequiresAttribute
Inherits DependencyValidationAttribute
Dim instance As RequiresAttribute
public ref class RequiresAttribute : public DependencyValidationAttribute
This attribute can be used to indicate that an argument can only be used in combination with one or more other arguments. If one or more of the dependencies does not have a value, validation will fail.
This validator will not be checked until all arguments have been parsed.
If validation fails, a CommandLineArgumentException is thrown with the error category set to CommandLineArgumentErrorCategoryDependencyFailed.
The names of the arguments that are dependencies are not validated when the attribute is created. If one of the specified arguments does not exist, an exception is thrown during validation.
RequiresAttribute(String) | Initializes a new instance of the RequiresAttribute class. |
RequiresAttribute(String) | Initializes a new instance of the RequiresAttribute class with multiple dependencies. |
Arguments |
Gets the names of the arguments that the validator checks against.
(Inherited from DependencyValidationAttribute) |
ErrorCategory |
Gets the error category used for the CommandLineArgumentException when
validation fails.
(Inherited from DependencyValidationAttribute) |
IncludeInUsageHelp |
Gets or sets a value that indicates whether this validator's help should be included
in the argument's description.
(Inherited from ArgumentValidationWithHelpAttribute) |
Mode |
Gets a value that indicates when validation will run.
(Inherited from DependencyValidationAttribute) |
TypeId | When implemented in a derived class, gets a unique identifier for this Attribute. (Inherited from Attribute) |
Equals | Returns a value that indicates whether this instance is equal to a specified object. (Inherited from Attribute) |
Finalize | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object) |
GetArguments |
Resolves the argument names in the Arguments property to their actual
CommandLineArgument instances.
(Inherited from DependencyValidationAttribute) |
GetErrorMessage |
Gets the error message to display if validation failed.
(Overrides ArgumentValidationAttributeGetErrorMessage(CommandLineArgument, Object)) |
GetHashCode | Returns the hash code for this instance. (Inherited from Attribute) |
GetType | Gets the Type of the current instance. (Inherited from Object) |
GetUsageHelp |
Gets the usage help message for this validator.
(Inherited from ArgumentValidationWithHelpAttribute) |
GetUsageHelpCore |
Gets the usage help message for this validator.
(Overrides ArgumentValidationWithHelpAttributeGetUsageHelpCore(CommandLineArgument)) |
IsDefaultAttribute | When overridden in a derived class, indicates whether the value of this instance is the default value for the derived class. (Inherited from Attribute) |
IsSpanValid |
When overridden in a derived class, determines if the argument is valid.
(Inherited from ArgumentValidationAttribute) |
IsValid |
Determines if the dependencies are met.
(Inherited from DependencyValidationAttribute) |
Match | When overridden in a derived class, returns a value that indicates whether this instance equals a specified object. (Inherited from Attribute) |
MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object) |
ToString | Returns a string that represents the current object. (Inherited from Object) |
Validate |
Validates the argument value, and throws an exception if validation failed.
(Inherited from ArgumentValidationAttribute) |
ValidateSpan |
Validates the argument value, and throws an exception if validation failed.
(Inherited from ArgumentValidationAttribute) |