C# Char IsLowSurrogate(Char)

Description

Char IsLowSurrogate(Char) indicates whether the specified Char object is a low surrogate.

Syntax

Char.IsLowSurrogate(Char) has the following syntax.


public static bool IsLowSurrogate(
  char c
)

Parameters

Char.IsLowSurrogate(Char) has the following parameters.

c - The character to evaluate.

Returns

Char.IsLowSurrogate(Char) method returns true if the numeric value of the c parameter ranges from U+DC00 through U+DFFF; otherwise, false.

Example

The following code example demonstrates the IsLowSurrogate method.


//from w  w w. ja  va2 s  .  c  o m

using System;

class Sample 
{
    public static void Main() 
    {
        char cHigh = '\uD800';
        char cLow  = '\uDC00';
        string s1  = new String(new char[] {'a', '\uD800', '\uDC00', 'z'});
    
        Console.WriteLine("Is each of the following characters a low surrogate?");
        Console.WriteLine("B1) cLow?  - {0}", Char.IsLowSurrogate(cLow));
        Console.WriteLine("B2) cHigh? - {0}", Char.IsLowSurrogate(cHigh));
        Console.WriteLine("B3) s1[0]? - {0}", Char.IsLowSurrogate(s1, 0));
        Console.WriteLine("B4) s1[2]? - {0}", Char.IsLowSurrogate(s1, 2));
    }
}

The code above generates the following result.