Truncate a number to a certain number of decimal places
Posted on 2009-11-05 15:39 zhaobin 阅读(326) 评论(0) 编辑 收藏 举报How do you truncate a number to a certain number of decimal places? for example, if i have 1.149 and i want to truncate that to 2 decimal places, the number should be 1.14. math.truncate() changes the number to 1.
Answer:
multiply the number by 10 raised to the power of the number of desired decimal points, use math.truncate() and divide by the original power of 10.
1.149 * (10^2): 114.9
math.truncate(): 114
114 / (10^2): 1.14
ASP.NET Example:
Math.Truncate(Convert.ToDecimal(Eval("AMOUNT")) * 100) /100
