ValidatePatternAttributeErrorMessage Property

public string? ErrorMessage { get; set; }

Public Property ErrorMessage As String
	Get
	Set

Dim instance As ValidatePatternAttribute
Dim value As String

value = instance.ErrorMessage
instance.ErrorMessage = value

public:
property String^ ErrorMessage {
	String^ get ();
	void set (String^ value);
}

Property Value

If this property is , the message returned by ArgumentValidationAttributeGetErrorMessage(CommandLineArgument, Object) will be used.

This property is a compound format string, and may have three placeholders: {0} for the argument name, {1} for the value, and {2} for the pattern.

Reference