WPF在DataTemplates中改进了ItemTemplateSelector

Question

Hey there I am new to WPF and I have a project where I want to use an ItemTemplate selector inside a DataTemplate

<DataTemplate x:Key="PicTemp">
...
</DataTemplate>
<DataTemplate x:key="MsgTemp">
...
</DataTemplate>
<DataTemplate x:key="PuttingItTogether">
<TextBlock Text="HeaderText" />
???<ItemTemplateSelector="{StaticResource Select Either PicTemp or MsgTemp>}"/>
</DataTemplate>

In the third Data Template how can I setup a template selctor to choose either the PicTemp or MsgTem DataTempalte?

Answer 1

ItemTemplateSelector is a property of an ItemsControl. You need to apply a style to the ItemsControl in order to set it. And you need to set it to an instance of an ItemTemplateSelector subclass that contains logic to return the appropriate DataTemplate for each item in the ItemsControl based on some property of the item.

I found this tutorial useful for learning how to correctly implement a DTS.

Answer 2

An ItemsTemplateSelector is used for ItemsControl such as ListBox, ListView and ItemsPresenter.
It can be used to select a DataTemplate based on the items source object. However in most cases, it is more easy to specify the DataType -property of the corresponding DataTemplate.

In your example I don't see how exactly you want to use the TemplateSelector, since you don't have an ItemsControl .