Gets or sets the format to use in the date/time picker. Long = 1 - the long date format set by the user's operating system, Short = 2 - the short date format set by the user's operating system, Time = 4 - the time format set by the user's operating system, Custom = 8 - the date/time value in a custom format.

'宣言
 
Public Property Format As System.Integer

public System.int Format {get; set;}