TextWriter.Write Method (String, Object)
Writes out a formatted string, using the same semantics as String.Format.
Assembly: mscorlib (in mscorlib.dll)
format is null.
The TextWriter is closed.
An I/O error occurs.
The format specification in format is invalid.
The number indicating an argument to be formatted is less than zero, or larger than or equal to the number of provided objects to be formatted.
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.