C# DateTimePicker CustomFormat Month and Year

Using DateTimePicker to select month and year only.

//to configure datetimepicker for month and year.

dateTimePicker1.Format = DateTimePickerFormat.Custom;
dateTimePicker1.CustomFormat = "MMM-yyyy";
dateTimePicker1.ShowUpDown = true;

//to get value of the datetimepicker.
dateTimePicker1.Value.ToString("yyyy-MM");

Additional Reading at :

1. MSDN DateTimePicker
2. MSDN CustomFormat
3. MSDN ShowUpDown

C# Custom Value from DateTimePicker

Custom value from datetimepicker as below:

 
string date = DateTimePicker1.Value.ToString("yyyy-MM-dd");

C# DateTime Custom String Method

Sample Code as bellow:

DateTime DT = DateTime.ParseExact("20121207015640","yyyyMMddHHmmss",null);  

For more info MSDN DateTime.ParseExact