Question

Why decimal.Parse(10 10) is valid?
I need to get exception in such case.
Please advise me something.

decimal c;
try
{
   c = decimal.Parse("10 10");
   Console.Write(c);
   Console.ReadLine();
}
catch (Exception)
{
    throw;
}

Answer 1

This throws an exception when I run it – which leads me to suspect that it’s culture-sensitive.

My guess is that you’re in a culture which uses space as a “thousands” separator. For example, if I try to parse “10,10” that works because comma is the thousands separator in my default culture.

To prevent this, use

decimal value = decimal.Parse(text, NumberStyles.None);

… or some other appropriate combination of NumberStyles which excludes AllowThousands.