Question

I have a double and I want to format it with the following rules:

1. If there are no decimal places show just the number (see 100 example below)
2. If there are any decimal places show 2 decimal places

So, as a few examples:

100 --> 100  
99.958443534 --> 99.96  
99.1 -> 99.10  

Answer 1

You can use:

decimal a = 99.949999999M;

Math.Round(a, 2);  // Returns 99.95