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VB.NET Format()

Description: Illustrates using VB.NET Format() Code Example.

Example Class:

Public Class clsFormat
 
    Public Sub Main()
 
 
        '****************************************************************************************
        ' Example #1: 	Format(Expession,style) - returns a formatted string 
        ' expression - required. object. any valid expression
        ' style - optional. string.  A valid named or user-defined format String expression.
        '
        'Different Formats for Different Numeric Values
        ' A user-defined format expression for numbers can have from one to three sections 
        ' separated by semicolons. If the Style argument of the Format function contains one
        ' of the predefined numeric formats, only one section is allowed.
        '
        ' If you use             This is the result
        ' One section only       The format expression applies to all values.
        ' Two(sections)          The first section applies to positive values and zeros; 
        '                        the second applies to negative values.
        ' Three(sections)        The first section applies to positive values, the second 
        '                        applies to negative values, and the third applies to zeros.
        '
        '****************************************************************************************
 
        Console.WriteLine("Example #1: 	Format(Expression,style) $#,##0;;\Z\e\r\o")
 
        Dim strStyle As String = "$#,##0;;\Z\e\r\o"
 
 
 
        ' Return 
        Console.WriteLine(Format(1, strStyle)) 'Returns $1
        Console.WriteLine(Format(-1, strStyle)) 'Returns -$1
        Console.WriteLine(Format(0, strStyle)) 'Returns Zero
 
 
        'write blank line to make output easier to read
        Console.WriteLine()
 
        ' Predefined Numeric Formats
        ' The following table identifies the predefined numeric format names. These may be used 
        ' by name as the Style argument for the Format function:
        '
        ' Format(name)                Description()
        ' General Number , G, or g    Displays number with no thousand separator.
        ' For example, Format(&H3FA, "g") returns 1018.
        '
        ' Currency , C, or c          Displays number with thousand separator, if appropriate; 
        ' displays two digits to the right of the decimal separator. Output is based on system locale 
        ' settings. For example, Format(92346, "c") returns $92,346.00.
        ' 
        ' Fixed , F, or f             Displays at least one digit to the left and two digits to 
        ' the right of the decimal separator. For example, Format(4375, "f") returns 4375.00.
        '
        ' Standard , N, or n          Displays number with thousand separator, at least one 
        ' digit to the left and two digits to the right of the decimal separator.
        ' For example, Format(5674, "n") returns 5,674.00.
        ' 
        ' Percent()                   Displays number multiplied by 100 with a percent sign 
        ' (%) appended immediately to the right; always displays two digits to the right of the 
        ' decimal separator. For example, Format(0.5979, "Percent") returns 59.79%.
        '
        ' P , or p                    Displays number with thousandths separator multiplied by
        ' 100 with a percent sign (%) appended to the right and separated by a single space; 
        ' always displays two digits to the right of the decimal separator.
        ' For example, Format(0.90345, "p") returns 90.35 %.
        '
        ' Scientific()                Uses standard scientific notation, providing two 
        ' significant digits. For example, Format(1234567, "Scientific") returns 1.23E+06.
        ' E , or e                    Uses standard scientific notation, providing six 
        ' significant digits. For example, Format(1234567, "e") returns 1.234567e+006.
        '
        ' D , or d                    Displays number as a string that contains the value of 
        ' the number in Decimal (base 10) format. This option is supported for integral types
        ' (Byte, Short, Integer, Long) only. For example, Format(&H7F, "d") returns 127.
        '
        ' X , or x                    Displays number as a string that contains the value of 
        ' the number in Hexadecimal (base 16) format. This option is supported for integral 
        ' types (Byte, Short, Integer, Long) only. For example, Format(127, "x") returns 7f.
        '
        ' Yes/No                      Displays No if number is 0; otherwise, displays Yes.
        ' For example, Format(3, "Yes/No") returns Yes.
        '
        ' True/False                  Displays False if number is 0; otherwise, displays True.
        ' For example, Format(0, "True/False") returns False.
        '
        ' On/Off                      Displays Off if number is 0; otherwise, displays On.
        ' For example, Format(0, "On/Off") returns Off.
 
 
        'User-Defined Numeric Formats
        '
        ' The following table identifies characters you can use to create user-defined number 
        ' formats. These may be used to build the Style argument for the Format function:
        '
        ' Character()                   Description()
        '
        ' None()                        Displays the number with no formatting.
        ' (0)                           Digit placeholder. Displays a digit or a zero.
        ' (#)                           Digit placeholder. Displays a digit or nothing. 
        ' (.)                           Decimal placeholder. The decimal placeholder determines 
        ' how many digits are displayed to the left and right of the decimal separator. 
        ' (%)                           Percent placeholder. Multiplies the expression by 100. 
        ' The percent character (%) is inserted in the position where it appears in the format string.
        ' (,)                           Thousand separator.
        ' (:)                           Time separator.
        ' (/)                           Date separator. 
        ' (E- E+ e- e+)                 Scientific format.
        ' - + $ ( )                     Literal characters. 
        ' (\)                           Displays the next character in the format string. 
        ' ("ABC")                       Displays the string inside the double quotation marks (" ").
 
        'Predefined Date/Time Formats
        ' The following table identifies the predefined date and time format names. 
        ' These may be used by name as the style argument for the Format function:
        '
        ' Format(Name)                  Description()
        ' General Date , or G           Displays a date and/or time. For example, 4/11/2011 11:08:32 AM. 
        ' Long Date , Medium Date, or D Displays a date according to your current culture's long date format. 
        ' For example, Wednesday, April 14, 2011.
        ' Short Date , or d             Displays a date using your current culture's short date
        ' format. For example, 5/14/2011. The d character displays the day in a user-defined date format.
        ' Long Time , Medium Time, or T Displays a time using your current culture's long time format;
        ' typically includes hours, minutes, seconds. For example, 10:08:32 AM.
        ' Short Time or t               Displays a time using your current culture's short time format.
        ' For example, 10:06 AM. The t character displays AM or PM values for locales that use 
        ' a 12-hour clock in a user-defined time format.
        ' f()                           Displays the long date and short time according to your 
        ' current(culture) 's format. For example, Wednesday, May 13, 2011 11:08 AM.
        ' F()                           Displays the long date and long time according to your 
        ' current(culture) 's format. For example, Wednesday, March 13, 2011 11:07:32 AM.
        ' g()                           Displays the short date and short time according to your 
        ' current(culture) 's format. For example, 4/13/2011 11:07 AM.
        ' M, m                          Displays the month and the day of a date. For example, March 13.
        ' The M character displays the month in a user-defined date format. The m character displays 
        ' the minutes in a user-defined time format.
        ' R, r                          Formats the date according to the RFC1123Pattern property. 
        ' For example, Wed, 12 Mar 2008 11:08:41 GMT. 
        ' s()                           Formats the date and time as a sortable index. 
        ' For example, 2011-04-12T11:07:31. The s character displays the seconds in a user-defined 
        ' time format.
        ' u()                          Formats the date and time as a GMT sortable index. 
        ' For example, 2011-02-11 11:07:31Z.
        ' U()                          Formats the date and time with the long date and long time 
        ' as GMT. For example, Wednesday, March 14, 2011 6:08:34 PM.
        ' Y, y                         Formats the date as the year and month. For example, March, 2011.
 
        'User-Defined Date/Time Formats
        ' The following table shows characters you can use to create user-defined date/time formats. 
        ' These format characters are case-sensitive.
        '
        ' Character()                  Description()
        ' (:)                          Time separator. 
        ' (/)                          Date separator. 
        ' (%)                          Used to indicate that the following character should be read as
        ' a single-letter format without regard to any trailing letters. 
        ' d()                          Displays the day as a number without a leading zero 
        ' dd()                         Displays the day as a number with a leading zero 
        ' ddd()                        Displays the day as an abbreviation (for example, Sun).
        ' dddd()                       Displays the day as a full name (for example, Sunday).
        ' M()                          Displays the month as a number without a leading zero.
        ' MM()                         Displays the month as a number with a leading zero.
        ' MMM()                        Displays the month as an abbreviation (for example, Jan).
        ' MMMM()                       Displays the month as a full month name (for example, January).
        ' gg()                         Displays the period/era string (for example, A.D.).
        ' h()                          Displays the hour as a number without leading zeros.
        ' hh()                         Displays the hour as a number with leading zeros.
        ' H()                          Displays the hour as a number without leading zeros 
        '  using the 24-hour clock (for example, 1:15:15).
        ' HH()                         Displays the hour as a number with leading zeros using the 
        ' 24-hour clock (for example, 02:16:15).
        ' m()                          Displays the minute as a number without leading zeros. 
        ' mm()                         Displays the minute as a number with leading zeros.
        ' s()                          Displays the second as a number without leading zeros.
        ' ss()                         Displays the second as a number with leading zeros.
        ' f()                          Displays fractions of seconds. 
        ' For example ff displays hundredths of seconds, whereas ffff displays ten-thousandths of 
        ' seconds. 
        ' t()                          Uses the 12-hour clock and displays an uppercase A for any hour 
        ' before noon; displays an uppercase P for any hour between noon and 11:59 P.M. 
        ' tt()                         For locales that use a 12-hour clock, displays an uppercase 
        ' AM with any hour before noon; displays an uppercase PM with any hour between noon and 11:59 P.M.
        ' y()                          Displays the year number (0-9) without leading zeros. 
        ' yy()                         Displays the year in two-digit numeric format with a leading zero.
        ' yyy()                        Displays the year in four-digit numeric format.
        ' yyyy()                       Displays the year in four-digit numeric format.
        ' z()                          Displays the timezone offset without a leading zero.
        ' zz()                         Displays the timezone offset with a leading zero (for example, -08)
        ' zzz()                        Displays the full timezone offset (for example, -08:00)
 
            'Prevent console from closing before you press enter
            Console.ReadLine()
 
    End Sub
 
 
End Class

Example Module:

Module Module1
 
    Sub Main()
 
 
        Dim myclsFormat As New clsFormat
        myclsFormat.Main()
 
 
 
    End Sub
 
End Module