WPF日历控件

您好，我想知道您是否可以指导我如何自定义日历控件.
试图实现的目的是在我的comobox中添加一个日历控件.这是comobox的.xaml

Hi, I was wondering if you can guide me on how I can customize a Calendar Control.
What am trying to achieve is that to add a calendar control inside my comobox. Here is .xaml for the comobox

<combobox grid.row="0" grid.column="0" height="23" horizontalalignment="Left" name="comboBox1" verticalalignment="Bottom" width="120" margin="100,0,0,0">
            <comboboxitem name="cbi1">Daily</comboboxitem>
            <comboboxitem name="cbi3">Monthly></comboboxitem>
             </combobox>

当它在comboxbox列表中时，在选择一个项目后我会弹出一个日历.例如，对于每月"，它将仅在日历中显示一年中的月份.

When it the comboxbox list the list item upon selecting an item I would like to pop-out a calender. For instance for Monthly it will only display the months of the year in the calendar.