using System;

using System.Globalization;

public class Program

{

    public static void Main()

    {

                var testString1 = "0,075";

                object result = System.Convert.ChangeType(testString1, typeof(decimal));

                Console.WriteLine(String.Format("testString1:{0} and result:{1}", testString1, result));

                testString1 = "0.075";

                result = System.Convert.ChangeType(testString1, typeof(decimal));

                Console.WriteLine(String.Format("testString1:{0} and result:{1}", testString1, result));

                testString1 = "0.075";

                result = System.Convert.ChangeType(testString1, typeof(decimal), CultureInfo.InvariantCulture);

                Console.WriteLine(String.Format("testString1:{0} and result:{1}", testString1, result));

                testString1 = "0.075";

                result = System.Convert.ChangeType(testString1, typeof(decimal), new CultureInfo("de-DE", false));

                Console.WriteLine(String.Format("testString1:{0} and result:{1}", testString1, result));

                testString1 = "0.075";

                result = System.Convert.ChangeType(testString1, typeof(decimal), new CultureInfo("en-US", false));

                Console.WriteLine(String.Format("testString1:{0} and result:{1}", testString1, result));

    }

}