using System;
using System.Globalization;
public class Test
{
public static void Main()
{
CultureInfo formato = null;
formato = (CultureInfo)CultureInfo.InvariantCulture.Clone();
formato.NumberFormat.NumberDecimalSeparator = ".";
formato.NumberFormat.NumberGroupSeparator = ",";
string x = "19.30";
System.Console.Write(Convert.ToDouble(x, formato));
}
}
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