convert to decimal - input string was not correct format

Question

I have a string "-6.379885574693132E-10" that I can't convert to decimal..is it to big? Is it possible to work around this?

Error:

Input string was not correct format

public class Program {
    private static void Main(string[] args) {
        Foo foo = new Foo();
        var str = "-6.379885574693132E-10";
        foo.SetPropertyValue("myVal", str);
    }
}

public class Foo {

    public decimal myVal { get; set; }

    public void SetPropertyValue(string propertyName, object value) {
        var propertyInfo = GetType().GetProperty(propertyName);
        propertyInfo.SetValue(this,
            Convert.ChangeType(value, propertyInfo.PropertyType, CultureInfo.InvariantCulture), null);
    }
}

Answer 1

I have no knowledge about reflection but you can parse this string with a combination of AllowDecimalPoint, AllowExponent and AllowLeadingSign styles with a culture that has . as a NumberDecimalSeparator like InvariantCulture as;

var s = "-6.379885574693132E-10";
var d = decimal.Parse(s, NumberStyles.AllowDecimalPoint | 
                         NumberStyles.AllowExponent | 
                         NumberStyles.AllowLeadingSign, 
                         CultureInfo.InvariantCulture);

Or more simple, you can use NumberStyles.Float which includes all these styles.

var s = "-6.379885574693132E-10";
var d = decimal.Parse(s, NumberStyles.Float, CultureInfo.InvariantCulture);