Unit 'DateUtils' Package
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TryEncodeDateMonthWeek

Encode a year, month, week of month and day of week to a TDateTime value.

Declaration

Source position: dateutil.inc line 354

function TryEncodeDateMonthWeek(

  const AYear: Word;

  const AMonth: Word;

  const AWeekOfMonth: Word;

  const ADayOfWeek: Word;

  out AValue: TDateTime

):Boolean;

Arguments

AYear

  

Year.

AMonth

  

Month in the year.

AWeekOfMonth

  

Week in the month.

ADayOfWeek

  

Day in the week.

AValue

  

Encoded TDateTime value.

Function result

True if the encoding was successful, False if not.

Description

TryEncodeDateTime encodes the values AYearAMonth, WeekOfMonth,ADayOfWeek, to a date value and returns this value in AValue.

If the encoding was successful, True is returned, False if any of the arguments is not valid.

See also

DecodeDateMonthWeek

  

Decode a TDateTime value in a month, week of month and day of week.

EncodeDateTime

  

Encodes a TDateTime value from all its parts.

EncodeDateWeek

  

Encode a TDateTime value from a year, week and day of week triplet.

EncodeDateDay

  

Encodes a year and day of year to a TDateTime value.

EncodeDateMonthWeek

  

Encodes a year, month, week of month and day of week to a TDateTime value.

TryEncodeDateTime

  

Encode a Year, Month, Day, Hour, minute, seconds, milliseconds tuplet to a TDateTime value.

TryEncodeDateWeek

  

Encode a year, week and day of week triplet to a TDateTime value.

TryEncodeDateDay

  

Encode a year and day of year to a TDateTime value.

NthDayOfWeek

  

Calculate which occurrence of weekday in the month a given day represents.

Example

Program Example86;

{ This program demonstrates the TryEncodeDateMonthWeek function }

Uses SysUtils,DateUtils;

Var
  Y,M,Wom,Dow : Word;
  TS : TDateTime;

Begin
  DecodeDateMonthWeek(Now,Y,M,WoM,DoW);
  If TryEncodeDateMonthWeek(Y,M,WoM,Dow,TS) then
    Writeln('Today is : ',DateToStr(TS))
  else
    Writeln('Invalid year/month/week/dow indication');
End.

Documentation generated on: Nov 22 2024