相同的文化，不同的价值转换

Question

My website extracts data from a text-file into a database. After reading the data, I convert string-values into double, using:

oracom.Parameters.Add("nstpreisvm", OracleDbType.Double).Value = Convert.ToDouble(_material.Mat_StPreisVm);

If I check the results in the database now, (The column expects the NUMBER -format), I get two different values: On my localhost via Visual Studio 2010, the database returns 10,15 - But if I make the process on the webserver, the database only shows 10 . How does this happen?

I implemented a little lable on the website now, filling it with the current culture on the Page-Load:

label.Text = Thread.CurrentThread.CurrentCulture.ToString();

The CurrentCulture is en-GB for both instances, so what is the problem here? Am I missing anything?

---

My local windows is Win7 SP1 with a german language-pack, the server is Win2008 R2 with standard English installation.

Answer 1

We had a similar problem on a customer server where the customer had manually changed the decimal separator symbol for a particular culture on that server. You can check this using:

Thread.CurrentThread.CurrentCulture.NumberFormat.NumberDecimalSeparator

I would suggest explicitly specifying the decimal separator symbol when you do the parsing:

Double.Parse("1,25", new NumberFormatInfo(){ NumberDecimalSeparator = "," });