<com:TContent ID="Content">
<com:TButton Text="Click me" />
<com:TDatePicker
  InputMode="DropDownList"
  DateFormat="M/yyyy" />

<com:TDatePicker
  InputMode="DropDownList"
  DateFormat="MM/yyyy" />
  
  <com:TDatePicker
  InputMode="DropDownList"
  DateFormat="MMM/yyyy" />
  
  <com:TDatePicker
  InputMode="DropDownList"
  DateFormat="MMMM/yyyy" />
</com:TContent>