控件的分层模板

Question

我不确定 wpf 控件的分层模板。例如，对于组合框。

<ComboBox ItemsSource="{Binding .}">
    <ComboBox.ItemTemplate>
        <DataTemplate>
            <Border HorizontalAlignment="Stretch">
                <Border.Style>
                    <Style TargetType="Border">
                        <Style.Triggers>
                            <DataTrigger Binding="{Binding RelativeSource={RelativeSource AncestorType=ComboBoxItem}, Path=DataContext.IsSelected}" Value="True">
                                <Setter Property="Background" Value="LightGreen"/>
                            </DataTrigger>
                        </Style.Triggers>
                    </Style>
                </Border.Style>
                <StackPanel HorizontalAlignment="Stretch">
                    <TextBlock Text="{Binding Name}"/>
                    <TextBlock Text="{Binding Email}">
                     </TextBlock>
                </StackPanel>
            </Border>
        </DataTemplate>
    </ComboBox.ItemTemplate>
</ComboBox>

它可能有类似的控制模板，但我不知道。

combox 有一个模板子 ItemTemplate 和一个孙子 DateTemplate。那么对于一个控件来说，有多少个模板子孙呢？我们可以在图表中列举它们以及它们之间的关系吗？

Answer 1

我在下面解释了属性的名称和它们的类型之间的区别：

<ComboBox>
    <ComboBox.ItemTemplate>
          <!-- Add a DataTemplate here. It determines how the content 
               of your data item appears. Use it to bind data 
               fields or format string and etc -->
    </ComboBox.ItemTemplate>
    <ComboBox.ItemContainerStyle>
          <!-- Add a Style here. It determines the appearance of the
               element (e.g., ComboBoxItem) that contains the data. Set
               Selection behaviour, Background color, etc-->
    </ComboBox.ItemContainerStyle>
    <ComboBox.Template>
          <!-- Add a ControlTemplate here. It contains the tree of 
               elements that define the desired look. Of course, most of
               the time, you do not set this property and use the default 
               value. Use it for example to change the shape of the ToggleButton.-->
    </ComboBox.Template>
    <ComboBox.ItemsPanel>
          <!-- Add an ItemsPanelTemplate here. Use it to determine the 
               the panel that the ItemsPresenter creates for the Items. 
               You can change the orientation of the ComboBoxItems here .-->
    </ComboBox.ItemsPanel>
</ComboBox>

希望对你有帮助。