System.DateUtils.IsValidDateWeek
Delphi
function IsValidDateWeek(const AYear, AWeekOfYear, ADayOfWeek: Word): Boolean;
C++
extern DELPHI_PACKAGE bool __fastcall IsValidDateWeek(const System::Word AYear, const System::Word AWeekOfYear, const System::Word ADayOfWeek);
Properties
| Type | Visibility | Source | Unit | Parent |
|---|---|---|---|---|
| function | public | System.DateUtils.pas System.DateUtils.hpp |
System.DateUtils | System.DateUtils |
Description
Indicates whether a specified year, week of the year, and day of the week represent a valid date.
IsValidDateWeek returns true if:
- AYear falls in the range from 1 through 9999 inclusive.
- AWeekOfYear falls in the range from 1 through the number of weeks in the specified year.
- ADayOfWeek falls in the range from 1 through 7.
Otherwise, IsValidDateWeek returns False.
See Also