Converting Celsius to Farenheit

A X

Hello I have created a simple program that converts celsius to farenheit but, for some reason the math operation i used is not giving me the correct result. celsius to farenheit is

F = 9/5 * C + 32. I broke down the problem and the error lies with the fraction (9/5). For some reason this calculation gives me a result of 1. Obviously im missing something here. Any help would be appreciated and thank you. here is my code...

private void btnF_Click(object sender, EventArgs e)

{

double cel, total;

cel = Double.Parse(txtC.Text);

total = 9/5 * cel + 32;

lblResult.Text = total.ToString();

}

would i have to cast the variable to float? and if i do cant that cause loss of data?

do I have to use a Math method? what am i doing wrong?

2 Replies

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Suraj Kumar8y ago
Please check with the following code and let me know

protected void Farenheit_Click(object sender, EventArgs e)
{
decimal cel, total;
cel = txtC.Text.Trim() == "" ? 0 : decimal.Parse(txtC.Text);
total = (decimal.Parse(Convert.ToString(cel)) * decimal.Parse("9.0")) / decimal.Parse("5.0") + decimal.Parse("32.0")
lblResult.Text = Convert.ToString(total);
}
+2
Amit Gupta8y ago
Change your integer division to floating point division like;

total = 9.0/5.0 * cel + 32;
+2