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The "0" custom format specifier in C#
The “0” custom specifier is a zero placeholder.
If the value to be formatted has a digit in the position where the zero appears in the format string, the the digit is copied to the resultant string. However, if this doesn’t happen, then a zero appears.
Here is our double variable.
double d; d = 292;
Now, by setting the following, you can easily make zero appear in the format string.
d.ToString("00000")
Example
using System; using System.Globalization; class Demo { static void Main() { double d; d = 292; Console.WriteLine(d.ToString("00000")); Console.WriteLine(String.Format("{0:00000}", d)); d = 3.5; Console.WriteLine(d.ToString("0.00", CultureInfo.InvariantCulture)); } }
Output
00292 00292 3.50
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