TryEncodeDateWeek

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

Declaration

Source position: dateutil.inc line 315

  function TryEncodeDateWeek(const AYear: Word; const AWeekOfYear: Word; 
                            out AValue: TDateTime; const ADayOfWeek: Word)
                             : Boolean;
  function TryEncodeDateWeek(const AYear: Word; const AWeekOfYear: Word; 
                            out AValue: TDateTime) : Boolean;

Description

TryEncodeDateWeek encodes the values AYear, AWeekOfYear and ADayOfWeek to a date value and returns this value in AValue.

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

See also

Name Description
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
EncodeDateTime Encodes a TDateTime value from all its parts
EncodeDateWeek Encode a TDateTime value from a year, week and day of week triplet
TryEncodeDateDay Encode a year and day of year to a TDateTime value
TryEncodeDateMonthWeek Encode 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

Example

Program Example82;
{ This program demonstrates the TryEncodeDateWeek function }
Uses SysUtils,DateUtils;
Var
  Y,W,Dow : Word;
  TS : TDateTime;
Begin
  DecodeDateWeek(Now,Y,W,Dow);
  If TryEncodeDateWeek(Y,W,TS,Dow) then
    Writeln('Today is : ',DateToStr(TS))
  else
    Writeln('Invalid date/week indication');
End.