Converts the value of this instance to its equivalent string representation (either "True" or "False").
bool.TrueString if the value of this instance is true, or bool.FalseString if the value of this instance is false.
This method returns the constants "True" or "False". Note that XML is case-sensitive, and that the XML specification recognizes "true" and "false" as the valid set of Boolean values. If the string object returned by the bool.ToString method is to be written to an XML file, its string.ToLower method should be called first to convert it to lowercase.