float exponential value interms of 0.00 like ?????

Question

Hi guys i am getting value in exponential

like :3.14765786987878E-6

I need thsi value in exact way

like : 0.00 some thing it has to come..,

I searched in google and tried in all the ways but i didnt get solution...,

plz help me,

Answer 1

Are you saying you want to display the value as 0.00000314 or that you want everything rounded to 0.00?

Answer 2

Hi,

 

Console.WriteLine("Float="+ float.Parse("3.14765786987878E-6", NumberStyles.Float | NumberStyles.AllowExponent).ToString("F2"));

OUTPUT= 0.00;


I think, when it is

3.14765786987878E-6 =  0.0000031476786987878E

but i want to display  in a very short  format like  0.31E
 

Answer 3

Hi,
The output is correct, because
    3.14765786987878E-6 =  0.0000031476786987878
then, statement:
    float.Parse("3.14765786987878E-6", NumberStyles.Float | NumberStyles.AllowExponent).ToString("F2")
is equals to:
    float f = 0.0000031476786987878F;
    string s = f.ToString("F2");  // s = "0.00"
that's why we got output 0.00.

Thanks,
Eric

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Answer 4

Try ToString("e") rather than ToString("F2"), if you would like to see your number output in exponential notation.  Further modification of the format string will allow you to limit the number of decimals shown, while still maintaining exponential notation.

See for example http://msdn.microsoft.com/en-us/library/kfsatb94.aspx