Parse a string to decimal with NumberStyles.AllowDecimalPoint | NumberStyles.AllowThousands
using System; using System.Globalization; class MainClass { public static void Main( ) { string value; NumberStyles style; CultureInfo culture; decimal number; value = "1.345,978"; style = NumberStyles.AllowDecimalPoint | NumberStyles.AllowThousands; culture = CultureInfo.CreateSpecificCulture("es-ES"); if (Decimal.TryParse(value, style, culture, out number)) Console.WriteLine("Converted '{0}' to {1}.", value, number); else Console.WriteLine("Unable to convert '{0}'.", value); } }