Why returns C# Convert.ToDouble(5/100) 0.0 and not 0.05

Question

double variable = Convert.ToDouble(5/100);

Will return 0.0 but i expected 0.05

What can / must i change to get 0.05

because the 5 i

Answer 1

so here would be my revised 'considered' answer...

as we don't know what 'type' of variable is arriving as the numerator, we'd have to use the Double.TryParse on that. In the lab, we could cook something like this up:

var numerator = "5"; // let's make it string to prove the point
double parsedNumerator;
int denominator = 100; // this could well be a constant

double result;
if(Double.TryParse(numerator, out parsedNumerator))
{
    // notice no casting or convert fluff
    result = parsedNumerator/denominator;
    // do something with the result
}
else
{
    // warn that the numerator is doo-lallie
}

now hiding under the desk - just in case i've overlooked something else obvious!! :)

jim