VB 2008 : DateTimePicker = Null ได้ไหม

Set by :
DateTimePicker.Format = System.Windows.Forms.DateTimePickerFormat.Custom
DateTimePicker.CustomFormat = " "

กลับมาเหมือนเดิม
DateTimePicker.Format = System.Windows.Forms.DateTimePickerFormat.Long
OR
DateTimePicker.Format = System.Windows.Forms.DateTimePickerFormat.Custom

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