[Overview][Constants][Procedures and functions][Index] | Reference for unit 'DateUtils' (#rtl)

# TryEncodeDateDay

Encode a year and day of year to a TDateTime value

## Declaration

Source position: dateutil.inc line 337

`function TryEncodeDateDay(`
`const AYear: Word;`
`const ADayOfYear: Word;`
`out AValue: TDateTime`
`):Boolean;`

## Arguments

`AYear` |  | Year
`ADayOfYear` |  | Day in the year
`AValue` |  | Encoded TDateTime value.

## Function result

True if the encoding was successful, False if not.

## Description

TryEncodeDateDay encodes the values AYear and ADayOfYear 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

EncodeDateDay |  | Encodes a year and day of year to a TDateTime value
EncodeDateTime |  | Encodes a TDateTime value from all its parts
EncodeDateMonthWeek |  | Encodes a year, month, week of month and day of week to a TDateTime value
EncodeDateWeek |  | Encode a TDateTime value from a year, week and day of week triplet
TryEncodeDateTime |  | Encode a Year, Month, Day, Hour, minute, seconds, milliseconds tuplet to a TDateTime value
TryEncodeDateMonthWeek |  | Encode a year, month, week of month and day of week to a TDateTime value
TryEncodeDateWeek |  | Encode a year, week and day of week triplet to a TDateTime value

## Example

    Program Example84;

    { This program demonstrates the TryEncodeDateDay function }

    Uses SysUtils,DateUtils;

    Var
      Y,DoY : Word;
      TS : TDateTime;

    Begin
      DecodeDateDay(Now,Y,DoY);
      If TryEncodeDateDay(Y,DoY,TS) then
        Writeln('Today is : ',DateToStr(TS))
      else
        Writeln('Wrong year/day of year indication');
    End.

Documentation generated on: May 14 2021