string to float

c# 中最高效的string to float

1    public float StrToFloat(object FloatString)
2    {
3        float result;
4        if (FloatString != null)
5        {
6            if (float.TryParse(FloatString.ToString(), out result))
7                return result;
8            else
9            {
10                return (float)0.00;
11             }
12         }
13        else
14        {
15            return (float)0.00;
16         }
17     }

1    public float StrToFloat(object FloatString)
2    {
3        try
4        {
5            float f = (float)Convert.ToSingle(FloatString);
6            return f;
7         }
8        catch (FormatException)
9        {
10            return (float)0.00;
11         }
12     }