Boolean.ToString(IFormatProvider) Method in C#

The Boolean.ToString(IFormatProvider) method in C# converts a Boolean value to its equivalent string representation. This method accepts an IFormatProvider parameter, though Boolean values are not culture-sensitive and always return "True" or "False" regardless of the culture specified.

Syntax

Following is the syntax for the Boolean.ToString(IFormatProvider) method −

public string ToString(IFormatProvider provider);

Parameters

• provider − An IFormatProvider object that provides culture-specific formatting information. This parameter is reserved but not used for Boolean values.

Return Value

Returns a string representation of the Boolean value. The method returns "True" for true values and "False" for false values, regardless of the culture specified.

Using ToString() with Different Cultures

Although Boolean values are not culture-sensitive, you can still pass different CultureInfo objects to maintain consistency in your code −

using System;
using System.Globalization;

public class Demo {
   public static void Main(String[] args) {
      bool val1 = true;
      bool val2 = false;
      
      Console.WriteLine("Value1 (Hashcode) = " + val1.GetHashCode());
      Console.WriteLine("Value1 (TypeCode) = " + val1.GetTypeCode());
      Console.WriteLine("Value2 (Hashcode) = " + val2.GetHashCode());
      Console.WriteLine("Value2 (TypeCode) = " + val2.GetTypeCode());
      
      CultureInfo provider = new CultureInfo("en-us");
      Console.WriteLine("Value1 = " + val1.ToString(provider));
      Console.WriteLine("Value2 = " + val2.ToString(provider));
   }
}

The output of the above code is −

Value1 (Hashcode) = 1
Value1 (TypeCode) = Boolean
Value2 (Hashcode) = 0
Value2 (TypeCode) = Boolean
Value1 = True
Value2 = False

Culture Independence Example

This example demonstrates that Boolean string representation remains the same across different cultures −

using System;
using System.Globalization;

public class Demo {
   public static void Main(String[] args) {
      bool val1 = true;
      bool val2 = false;
      
      // Different cultures
      CultureInfo usCulture = new CultureInfo("en-US");
      CultureInfo frenchCulture = new CultureInfo("fr-FR");
      CultureInfo germanCulture = new CultureInfo("de-DE");
      
      Console.WriteLine("US Culture:");
      Console.WriteLine("Value1 = " + val1.ToString(usCulture));
      Console.WriteLine("Value2 = " + val2.ToString(usCulture));
      
      Console.WriteLine("\nFrench Culture:");
      Console.WriteLine("Value1 = " + val1.ToString(frenchCulture));
      Console.WriteLine("Value2 = " + val2.ToString(frenchCulture));
      
      Console.WriteLine("\nGerman Culture:");
      Console.WriteLine("Value1 = " + val1.ToString(germanCulture));
      Console.WriteLine("Value2 = " + val2.ToString(germanCulture));
   }
}

The output of the above code is −

US Culture:
Value1 = True
Value2 = False

French Culture:
Value1 = True
Value2 = False

German Culture:
Value1 = True
Value2 = False

Comparison with Other ToString() Overloads

Conclusion

The Boolean.ToString(IFormatProvider) method provides a culture-aware interface for converting Boolean values to strings, though the output remains constant as "True" or "False" regardless of culture. This method is useful for maintaining consistency in internationalized applications where other data types benefit from culture-specific formatting.