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How To detect Japanese characters in C#


using System;
using System.Data.Linq;
using System.Collections.Generic;

public class Program
{
private static int GetCharsInRange(string text, int min, int max)
{
List<char> lst=new List<char>(text.ToCharArray());
    return lst.FindAll(e => e >= min && e <= max).Count;
}

private static bool IsJapaneseText(string input)
{
int hiragana = GetCharsInRange(input, 0x3040, 0x309F);
int katakana = GetCharsInRange(input, 0x30A0, 0x30FF);
int kanji = GetCharsInRange(input, 0x4E00, 0x9FBF);
int result=hiragana+katakana+kanji;
return result>0;
}
public static void Main()
{
string searchKeyword=@"宜しくお願い致します。宜しくお願い致します。宜しくお願い致します。宜しくお願い致します。宜しくお願い致します。宜しくお願い致します。宜しくお願い致します。宜しくお願い致します。宜しくお願い致します。";
//string searchKeyword="Hello world";

Console.WriteLine("Is Japanese text?:{0}",IsJapaneseText(searchKeyword));
}
}

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