Textbox or Datepicker in DataTemplate. Based on the data type I want one, but not both

I have a datatemplate for my listbox:

<DataTemplate x:Key="CheckBoxTextBoxItemTemplate">
    <StackPanel Orientation="Horizontal">
        <CheckBox Focusable="False" IsChecked="{Binding IsChecked}" VerticalAlignment="Center"/>
        <ContentPresenter Content="{Binding Name, Mode=OneTime}" Margin="2,0" Width="140"开发者_如何学运维 VerticalAlignment="Center"/>
        <TextBox Text="{Binding FieldData}" Margin="2,0" Width="200" Visibility="{Binding FieldDataVisible}"/>
    </StackPanel>
</DataTemplate>

However the items in the list that the listbox is bound to are not all String types. Some are DateTime and a few are Integers. I would like to have a datetimepicker displayed instead of a textbox for the DateTime types. How can I make this happen.

To clarify some points the list is populated at runtime using reflection so I don't know which fields are what types ahead of time.

Within the Resources block of the ListBox, you could specify a DataTemplate for each type (pseudocode):

<ListBox.Resources>
  <DataTemplate DataType="{x:Type String}">
    <TextBlock />
  </DataTemplate>
  <DataTemplate DataType="{x:Type DateTime}">
    <DateTimePicker />
  </DataTemplate>
</ListBox.Resources>

Note that you don't refer to these template by an identifier; they will simply be applied to any instance of the specified DataType in their scope (the ListBox).

Alternatively, you can implement a DataTemplateSelector to return a different template for each type.