Implicit Conversions

From System.String
To System.String

Methods

ToDate()
ToString()
Constructor

Quaero.DW.Date

Quaero.DW.Date Class

public class Quaero.DW.Date : Quaero.DW.Json;

This class encapsulates a YYYY-MM-DD date. The date might be a partial one; MM and DD might be missing. It is used by JSON criteria to constrain a search to a given time period.

Constructor

new Quaero.DW.Date(System.String date);

Create a DW.Date object from a string.

Parameters

date: The date you want. May be "YYYY" or "YYYY-MM" or "YYYY-MM-DD" where YYYY is a year, MM is the month (01 to 12) and DD is the day (01 to 31). The date is not check for validity, so you may pass "2019-17-44." But you don't want to.
[System.String]

Constructor

new Quaero.DW.Date(System.Int32 yyyy, System.Int32 mm, System.Int32 dd);

Create a DW.Date object from numbers.

Parameters

yyyy: Year
[System.Int32]
mm: Month (optional)
[System.Int32]
dd: Day (optional)
[System.Int32]

Constructor

new Quaero.DW.Date(System.DateTime datetime);

Create a DW.Date object from a [System.DateTime] object.

Parameters

datetime: A DateTime object.
[System.DateTime]

ToString() Method

 Quaero.DW.Date.ToString();

Convert the Date object to it's string form.

ToDate() Method

System.DateTime Quaero.DW.Date.ToDate();

Convert the Date to a [System.DateObject] at midnight.

Returns

[System.DateTime]

Implicit Conversion From System.String

implicit public static operator Quaero.DW.Date (System.String str);

Implicit conversion from a string to a Date.

Parameters

str: String representation of the date.
[System.String]

Returns

[Quaero.DW.Date]

Example

using Quaero;

DW.Criteria crit = new DW.Criteria ();
crit.during = "2019-04";
// Same as new Date ( 2019, 4 );

Implicit Conversion To System.String

implicit public static operator System.String (Quaero.DW.Date date);

Implicit conversion from a Date to a string.

Parameters

date: [Quaero.DW.Date]

Returns

[System.String]

Example

using Quaero;

DW.Search search = new DW.Search ();
search.crit.during = new Date( 2019, 3, 14 );
Console.WriteLine( search.crit.during );    
// Outputs 2019-03-14