How do I cast a double to an int?

Question

I have a program that uses a formula to calculate the refurb on a unit (parts replaced on cableboxes that were damaged) divided by total units (cableboxes that went through refurb, but did not have any parts replaced). I looked up casting online, and the format for it is:

int valuetoconvert = Convert.ToInt32;

I'm doing that, but I still get the following error:

Cannot implicitly convert type 'double to int. An explicit conversion exists(are you missing a cast?)

What am I doing wrong? Can someone please help? Thank you.

Here's some of my code:

private int GetRefurbRate()
{
string sql = "";
double Refurb_Rate;
int totalRefurb = 0;
int totalUnits = 0;
string error_msg = "";


sql = "SELECT COUNT(rp.repair_ord) " +
"FROM " + schema + ".repair_part rp " +
"WHERE rp.repair_ord = '" + repair_ord + "' ";
while (true)
{
if (!myDb.RunSql(sql, true))
{
error_msg = "DBError for getting Refurb Rate";
break;
}
if (myDb.dbRdr.HasRows)
{
if (myDb.dbRdr.Read())
{
try //Try and Catch are here b/c I originally had everything ints, and and they just caught the 0 exception.
{

Refurb_Rate = Convert.ToInt32( totalRefurb / totalUnits * 100); //This is where I try to perform the cast.

}
catch (Exception e)
{
Console.WriteLine(e);
}

}

//int Refurb_Rate = Convert.ToInt32(Refurb_Rate);
}

break;
}
myDb.dbRdr.Close();

if (error_msg != String.Empty)
{
MessageBox.Show(error_msg, "Get Refurb Rate",
MessageBoxButtons.OK, MessageBoxIcon.Asterisk);
}

Solution 1

You say you want an int cast, but you actually need to cast to a double. You can do that like so (Example Code):

Refurb_Rate = (double)totalRefurb / (double)totalUnits * 100d;

Otherwise, you need to change Refurb_Rate from a double to an int.

Solution 2

You need to say that you want an int cast:

double a;
int b = (int) a;