C# | Char.ToString() Method

C# | Char.ToLowerInvariant(Char) Method

Last Updated : 19 Dec, 2019

This method is used to converts the value of a Unicode character to its lowercase equivalent using the casing rules of the invariant culture. Syntax:

public static char ToLowerInvariant (char c);

Here, c is the Unicode character to convert. Return Value: This method returns the lowercase equivalent of the c parameter, or the unchanged value of c, if c is already lowercase or not alphabetic. Below programs illustrate the use of Char.ToLowerInvariant(Char) Method: Example 1:

csharp

// C# program to demonstrate
// Char.ToLowerInvariant()
// Method
using System;

class GFG {

    // Main Method
    public static void Main()
    {
        // calling get() Method
        get('A');
        get('a');
        get('B');
        get('b');
    }

    // Defining get() method
    public static void get(char c)
    {

        // getting Unicode character
        // using ToLowerInvariant() Method
        char val = Char.ToLowerInvariant(c);

        // display the char value
        Console.WriteLine("The lowercase equivalent"+
                       " of the {0} is {1}", c, val);
    }
}

Output:

The lowercase equivalent of the A is a
The lowercase equivalent of the a is a
The lowercase equivalent of the B is b
The lowercase equivalent of the b is b

Example 2:

csharp

// C# program to demonstrate
// Char.ToLowerInvariant()
// Method
using System;

class GFG {

    // Main Method
    public static void Main()
    {
        // declaring and initializing char variable
        char c = 'A';

        // getting Unicode character
        // using ToLowerInvariant() Method
        char val = Char.ToLowerInvariant(c);

        // display the char value
        Console.WriteLine("The lowercase equivalent"+
                       " of the {0} is {1}", c, val);
    }
}

Output:

The lowercase equivalent of the A is a

Reference:

https://docs.microsoft.com/en-us/dotnet/api/system.char.tolowerinvariant?view=netframework-4.7.2

C# | Char.ToString() Method

rohitprasad3

Improve

Article Tags :

Similar Reads

C# | Char.IsHighSurrogate(String, Int32) Method

This method is used to indicates whether the Char object at the specified position in a string is a high surrogate or not. Syntax: public static bool IsHighSurrogate (string s, int index); Parameters: s: It is a String. index: It is the character position in s. Return Value: This method returns true

C# | Char.IsLetter() Method

In C#, Char.IsLetter() is a System.Char struct method which is used to check whether a Unicode character can be categorized as a Unicode letter or not. Unicode letters consist of the Uppercase letters, Lowercase letters, Title case letters, Modifiers letters and Other letters. This method can be ove

C# | Char.IsLetterOrDigit() Method

In C#, Char.IsLetterOrDigit() is a System.Char struct method which is used to check whether a Unicode character can be categorized as a letter or decimal digit. Valid letters and decimal digits will be the members of the UnicodeCategory: UppercaseLetter, LowercaseLetter, TitlecaseLetter, ModifierLet

C# | Char.IsLower() Method

In C#, Char.IsLower() is a System.Char struct method which is used to check whether a Unicode character can be categorized as a lowercase letter or not. Valid lowercase letters will be the members of UnicodeCategory: LowercaseLetter. This method can be overloaded by passing different type and number

C# | Char.IsLowSurrogate(String, Int32) Method

This method is used to indicates whether the Char object at the specified position in a string is a low surrogate or not. Syntax: public static bool IsLowSurrogate (string s, int index); Parameters: s: It is a String. index: It is the character position to evaluate in s. Return Value: This method re

C# | Char.IsNumber() Method

In C#, Char.IsNumber() is a System.Char struct method which is used to check whether a Unicode character can be categorized as a number or not. Valid numbers will be the members of the UnicodeCategory.DecimalDigitNumber, UnicodeCategory.LetterNumber, or UnicodeCategory.OtherNumber category. This met

C# | Char.IsPunctuation() Method

In C#, Char.IsPunctuation() is a System.Char struct method which is used to check whether an Unicode character can be categorized as a punctuation mark or not. This method can be overloaded by passing different type and number of arguments to it. Char.IsPunctuation(Char) Method Char.IsPunctuation(St

C# | Char.IsSeparator ( ) Method

In C#, Char.IsSeparator() is a System.Char struct method which is used to check whether a Unicode character can be categorized as a separator character or not. This method can be overloaded by passing different type and number of arguments to it. Char.IsSeparator(Char) MethodChar.IsSeparator(String,

C# | Char.IsSurrogate(String, Int32) Method

This method is used to indicates whether the character at the specified position in a specified string has a surrogate code unit or not. Syntax: public static bool IsSurrogate (string s, int index); Parameters: s: It is a String. index: It is the character position to evaluate in s. Return Value: Th

C# | Char.IsSymbol() Method

In C#, Char.IsSymbol() is a System.Char struct method which is used to check whether a Unicode character is a valid symbol defined under UnicodeCategory as MathSymbol, CurrencySymbol, ModifierSymbol, or OtherSymbol or not. This method can be overloaded by passing different types and number of argume