NumberFormatInfo.NumberNegativePattern Property


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Gets or sets the format pattern for negative numeric values.

Namespace:   System.Globalization
Assembly:  mscorlib (in mscorlib.dll)

public int NumberNegativePattern { get; set; }

Property Value

Type: System.Int32

The format pattern for negative numeric values.

Exception Condition

The property is being set to a value that is less than 0 or greater than 4.


The property is being set and the NumberFormatInfo object is read-only.

The NumberNegativePattern property defines the format of negative values formatted with the "N" standard numeric format string. This property has one of the values in the following table. The symbol "-" is the NegativeSign and n is a number.


Associated pattern






- n




n -

The default value for the invariant culture returned by the InvariantInfo property is 1, which represents "-n", where n is a number.

The following example displays a value using different NumberNegativePattern patterns.

 using System;
 using System.Globalization;

 class Example
     public static void Main()  {

       // Create a new NumberFormatinfo.
       NumberFormatInfo nfi = new NumberFormatInfo();

       // Define a negative value.
       Int64 value = -1234;

       // Display the value with default formatting.
        Console.WriteLine("{0,-20} {1,-10}", "Default:", 
                          value.ToString("N", nfi));

       // Display the value with other patterns.
       for (int i = 0; i <= 4; i++)  {
          nfi.NumberNegativePattern = i;
            Console.WriteLine("{0,-20} {1,-10}", 
                              String.Format("Pattern {0}:", 
                              value.ToString("N", nfi));
// The example displays the following output:
//       Default:             -1,234.00
//       Pattern 0:           (1,234.00)
//       Pattern 1:           -1,234.00
//       Pattern 2:           - 1,234.00
//       Pattern 3:           1,234.00-
//       Pattern 4:           1,234.00 -

Universal Windows Platform
Available since 8
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
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