String.ToString Method (IFormatProvider)
Returns this instance of String; no actual conversion is performed.
Assembly: mscorlib (in mscorlib.dll)
provider is reserved, and does not currently participate in this operation.
Because this method simply returns the current string unchanged, there is no need to call it directly.
Available since 1.1
Available since 2.0
Windows Phone Silverlight
Available since 7.0