C# in a Nutshell

Name

ICustomFormatter

Synopsis

This interface provides a custom formatter, which returns string information for supplied objects based on custom criteria. The ICustomFormatter interface contains a single Format() method. This method accepts a format string and an IFormatProvider object and uses this criteria to determine which string to return for the specified object.

public interface ICustomFormatter {
// Public Instance Methods
   public method string Format(string format, object arg, 
        IFormatProvider formatProvider);  
}