在C＃中格式化双精度值

Question

Say I have a double variable initialized as

double dValue  = 5.156365

I would like to show this in a textbox as 5.16 ie only two decimal places.

How should I format?

Is textbox.Text = dValue.ToString("F2", Culture.....) correct? When I tried it did give me the correct result. However, if dValue = 5 then I would like only 5 to be shown and not 5.00.

How could I achieve this in C#?

Answer 1

字符串中的0强制该小数位，而#使数字升至该小数位。

   dValue.ToString("0.##")