decimal d = 1234567.89434M;
return d.ToString("N",CultureInfo.GetCultureInfo("ru"));
string strnum1 = "123,456";
string strnum2 = "678.910";
decimal d1 = Convert.ToDecimal(strnum1.Replace(",", "."), CultureInfo.InvariantCulture);
decimal d2 = Convert.ToDecimal(strnum2.Replace(",", ".")...