下面是ListBox.ItemTemplate(數據模板)應用的“典型”例子，概述如下兩點：

??? 1：Grid部分，用來“規劃” 數據 顯示的 布局（即數據長成什么樣子）

??? 2：給DataTemplate添加觸發器（即給Item添加了觸發器）,因此聯想到，也可以給ControlTemplate添加觸發器。

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<ListBox.ItemTemplate>
??????????????? <DataTemplate DataType="TwoLevelTreeNodeViewModel">
??????????????????? <--Grid部分，“規劃” 數據 以 何種 樣子 展現出來-->????????????????
??????????????????? <Grid>
??????????????????????? <Grid.Background>
??????????????????????????? <ImageBrush AlignmentX="Left" AlignmentY="Top" TileMode="Tile" ViewportUnits="Absolute" Viewport="0,0,229,42" ImageSource="/FounderAMP;component/Images/Police/SearchResult_bg.png"/>
??????????????????????? </Grid.Background>
??????????????????????? <Grid.ColumnDefinitions>
??????????????????????????? <ColumnDefinition Width="*"/>
??????????????????????????? <ColumnDefinition Width="11"/>
??????????????????????? </Grid.ColumnDefinitions>
??????????????????????? <Rectangle Name="selectedBackground" Fill="#3d7cff" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Grid.Column="0" Grid.ColumnSpan="2" Visibility="Collapsed"/>
??????????????????????? <TextBlock Name="headerLabel" Text="{Binding Path=HeaderText}" Grid.Column="0" TextTrimming="WordEllipsis" ToolTip="{Binding Path=HeaderText}"?? HorizontalAlignment="Stretch" TextAlignment="Left" VerticalAlignment="Center" Margin="8,0,0,0" Width="200" FontFamily="Microsoft YaHei" FontSize="13" />
??????????????????????? <TextBlock Name="footerLabel" ToolTip="{Binding Path=FooterText}" TextTrimming="WordEllipsis" Text="{Binding Path=FooterText}" Grid.Column="0" HorizontalAlignment="Right" VerticalAlignment="Center" FontFamily="Microsoft YaHei" FontSize="13" FontWeight="Bold" Margin="0,0,6,0" />
??????????????????????? <Image Source="/FounderAMP;component/Images/Police/Downward_Triangle.png" Grid.Column="1" Cursor="Hand" Visibility="{Binding Path=ExpandingVisibility}" Name="ExpandOrgNodeImage" MouseLeftButtonDown="ExpandOrgNodeImage_MouseLeftButtonDown" Tag="{Binding}"/>
??????????????????? </Grid>
??????????????????? <--給DataTemplate添加觸發器（即給Item添加了觸發器）-->
??????????????????? <DataTemplate.Triggers>
??????????????????????? <Trigger Property="IsMouseOver" Value="True"><-- 由于該DataTemplate 是為ListBox.ItemTemplate定義的，所以當鼠標懸停在“Item”上時，會“激發”該觸發器
??????????????????????????? <Setter TargetName="selectedBackground" Property="Visibility" Value="Visible"/>
??????????????????????????? <Setter TargetName="headerLabel" Property="Foreground" Value="White"/>
??????????????????????????? <Setter TargetName="footerLabel" Property="Foreground" Value="White"/>
??????????????????????????? <Setter TargetName="ExpandOrgNodeImage" Property="Source" Value="/FounderAMP;component/Images/Police/downwardTriangle_WhiteBackground.png"/>
??????????????????????? </Trigger>
??????????????????? </DataTemplate.Triggers>
???????????????????
??????????????? </DataTemplate>
??????????? </ListBox.ItemTemplate>

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轉載于:https://www.cnblogs.com/changbaishan/p/3519871.html

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