public static string ToString(
	this string str,
	IFormatProvider provider,
	string defaultValue,
	bool considerWhiteSpaceIsEmpty = false
)

<ExtensionAttribute>
Public Shared Function ToString ( 
	str As String,
	provider As IFormatProvider,
	defaultValue As String,
	Optional considerWhiteSpaceIsEmpty As Boolean = false
) As String

public:
[ExtensionAttribute]
static String^ ToString(
	String^ str, 
	IFormatProvider^ provider, 
	String^ defaultValue, 
	bool considerWhiteSpaceIsEmpty = false
)

[<ExtensionAttribute>]
static member ToString : 
        str : string * 
        provider : IFormatProvider * 
        defaultValue : string * 
        ?considerWhiteSpaceIsEmpty : bool 
(* Defaults:
        let _considerWhiteSpaceIsEmpty = defaultArg considerWhiteSpaceIsEmpty false
*)
-> string