C# Decimal ("D") Format Specifier
Description
The "D" (or decimal) format specifier converts a number to a string of decimal digits (0-9), prefixed by a minus sign if the number is negative.
| Item | Value |
|---|---|
| Format specifier | "D" or "d" |
| Supported by | Integral types only. |
| Result | Integer digits with optional negative sign. |
| Precision specifier | The precision specifier indicates the minimum number of digits desired in the resulting string. |
| Default precision specifier | Minimum number of digits required. |
Example,
| Value | Format | Formatted |
|---|---|---|
| 1234 | ("D") | 1234 |
| -1234 | ("D6") | -001234 |
If required, the number is padded with zeros to its left to produce the number of digits given by the precision specifier.
NegativeSign from NumberFormatInfo
defines the string that indicates that a number is negative.
Example
using System;//from w ww . j av a 2 s .c o m
class MainClass
{
static void Main()
{
int value;
value = 12345;
Console.WriteLine(value.ToString("D"));
// Displays 12345
Console.WriteLine(value.ToString("D8"));
// Displays 00012345
value = -12345;
Console.WriteLine(value.ToString("D"));
// Displays -12345
Console.WriteLine(value.ToString("D8"));
// Displays -00012345
}
}
The code above generates the following result.
