How to precisely control the decimal places displayed in C#?

The skills of decimal decimal in the c#

In C#programming, the number of display places for accurately control the decimal number is very important, especially when dealing with currency and other values ​​of the two digits after the decimal point.

Use the tostring () method

The method of C#can convert the value to a string, but by default, it usually displays too much accuracy.

Custom formatting

ToString()

In order to accurately control the displayed decimal digits, the following variants of the

method can be used:

ToString(): Display two decimals and perform four houses and five entry (for example, 0.5m display as ".5").

• : Similar to the first option, but the front guide zero (e.g., 0.5m is displayed as "0.5"). decimalVar.ToString("#.##")
• : Always show two decimal numbers, even 0 will be displayed (for example, 0.5m is displayed as "0.50"). decimalVar.ToString("0.##") Example
• It is assumed that there is a decimal variable called decimalVar.ToString("0.00"), with a value of 0.5m. Using the above method, you can display it as:

-& gt; ".5"

-& gt; "0.5"

-& gt; "0.50"

decimalVar

By flexibly using these formatization options, you can ensure that decimal is displayed with expected accuracy, so as to obtain accurate and consistent output results.

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