public string? DefaultValueFormat { get; set; }Public Property DefaultValueFormat As String
	Get
	Set
Dim instance As CommandLineArgumentAttribute
Dim value As String
value = instance.DefaultValueFormat
instance.DefaultValueFormat = valuepublic:
property String^ DefaultValueFormat {
	String^ get ();
	void set (String^ value);
}This value must be a compound formatting string containing exactly one placeholder, e.g "0x{0:x}".