using System;

using System.Globalization;

​

var cultureCode = "ar-SA"; //  Arabic (Saudi Arabia)

​

CultureInfo cultureInfo = new CultureInfo(cultureCode);

bool isRightToLeft = cultureInfo.TextInfo.IsRightToLeft;

Console.WriteLine($"Culture '{cultureCode}' is right-to-left: {cultureInfo.TextInfo.IsRightToLeft}");