最近在使用ListBox（ListView比ListBox了个View，问题是一样的）的时候，发现ListBox相对其他控件而言比较特别，用设置其他控件的方式去设设置Trigger都无法改变TextBlock的前景色（当然期间尝试了n种方法，历尽艰辛，这里省略约1w字）。
这是原代码，Template里面有两个TextBlock控件，一个未进行设置Foreground，一个是设置了Foreground：
1 <ListBox
2 BorderThickness="0"
3 ItemsSource="{Binding WorkStationList, Mode=TwoWay}"
4 SelectedItem="{Binding WorkStationSelectedItem, Mode=TwoWay}"
5 Grid.IsSharedSizeScope="True">
6 <ListBox.ItemTemplate>
7 <DataTemplate>
8 <Border BorderBrush="{DynamicResource GrayBrush7}"
9 BorderThickness="0 0 0 1"
10 Padding="10 5" >
11 <Grid>
12 <Grid.RowDefinitions>
13 <RowDefinition Height="auto" />
14 <RowDefinition Height="auto" />
15 </Grid.RowDefinitions>
16 <Grid.ColumnDefinitions>
17 <ColumnDefinition Width="30" />
18 <ColumnDefinition Width="auto" />
19 <ColumnDefinition />
20 </Grid.ColumnDefinitions>
21 <TextBlock
22 Grid.Column="0"
23 Grid.RowSpan="2"
24 Text="{Binding Order}"
25 VerticalAlignment="Center"/>
26 <Path
27 Grid.Column="1"
28 Grid.RowSpan="2"
29 Name="Part_Icon"
30 Stretch="Fill"
31 Height="24"
32 Width="28"
33 Margin="0 0 10 0"
34 Fill="{DynamicResource GrayBrush5}"
35 Data="M1098,919 L1098,921 L1101,921 L1101,923 L1089,923 L1089,921 L1092,921 L1092,919 L1083.15385,919 C1081.96431,919 1081,918.005077 1081,916.777778 L1081,901.222222 C1081,899.994923 1081.96431,899 1083.15385,899 L1106.84615,899 C1108.03569,899 1109,899.994923 1109,901.222222 L1109,916.777778 C1109,918.005077 1108.03569,919 1106.84615,919 L1098,919 Z M1084,901 C1083.44772,901 1083,901.447715 1083,902 L1083,916 C1083,916.552285 1083.44772,917 1084,917 L1106,917 C1106.55228,917 1107,916.552285 1107,916 L1107,902 C1107,901.447715 1106.55228,901 1106,901 L1084,901 Z" />
37 <TextBlock
38 Grid.Column="2"
39 Grid.Row="0"
40 Text="{Binding WORKCENTER_NAME}"
41 VerticalAlignment="Center"
42 Margin="5" />
43 <TextBlock
44 Grid.Column="2"
45 Grid.Row="1"
46 Foreground="{DynamicResource GrayBrush1}"
47 Text="{Binding WORKSTATION_NAME}"
48 VerticalAlignment="Center"
49 Margin="10 5 0 5" />
51 </Grid>
52 </Border>
53 </DataTemplate>
54 </ListBox.ItemTemplate>
55 </ListBox>
在调试的过程中，通过实时属性发现其他未设置Foreground属性的TextBlock是继承于系统预定义颜色，而设置了Foreground的TextBlock，始终是设定的颜色（比如GrayBrush5不变）。继承系统颜色的TextBlock在选中不选中状态切换时，颜色可以黑白变化。而设定的颜色的TextBlock无论怎么设定触发器，依旧保持不变。这给予我一定的解题思路：就是不在Contemplate里面设置控件的默认值，而是通过Trigger去设定它不选中时候是什么样的，选中后是什么样的，解决代码如下：
1 <ListBox
2 BorderThickness="0"
3 ItemsSource="{Binding WorkStationList, Mode=TwoWay}"
4 SelectedItem="{Binding WorkStationSelectedItem, Mode=TwoWay}"
5 Grid.IsSharedSizeScope="True">
6 <ListBox.ItemTemplate>
7 <DataTemplate>
8 <Border BorderBrush="{DynamicResource GrayBrush7}"
9 BorderThickness="0 0 0 1"
10 Padding="10 5" >
11 <Grid>
12 <Grid.RowDefinitions>
13 <RowDefinition Height="auto" />
14 <RowDefinition Height="auto" />
15 </Grid.RowDefinitions>
16 <Grid.ColumnDefinitions>
17 <ColumnDefinition Width="30" />
18 <ColumnDefinition Width="auto" />
19 <ColumnDefinition />
20 </Grid.ColumnDefinitions>
21 <TextBlock
22 Grid.Column="0"
23 Grid.RowSpan="2"
24 Text="{Binding Order}"
25 VerticalAlignment="Center"/>
26 <Path
27 Grid.Column="1"
28 Grid.RowSpan="2"
29 Name="Part_Icon"
30 Stretch="Fill"
31 Height="24"
32 Width="28"
33 Margin="0 0 10 0"
34 Data="M1098,919 L1098,921 L1101,921 L1101,923 L1089,923 L1089,921 L1092,921 L1092,919 L1083.15385,919 C1081.96431,919 1081,918.005077 1081,916.777778 L1081,901.222222 C1081,899.994923 1081.96431,899 1083.15385,899 L1106.84615,899 C1108.03569,899 1109,899.994923 1109,901.222222 L1109,916.777778 C1109,918.005077 1108.03569,919 1106.84615,919 L1098,919 Z M1084,901 C1083.44772,901 1083,901.447715 1083,902 L1083,916 C1083,916.552285 1083.44772,917 1084,917 L1106,917 C1106.55228,917 1107,916.552285 1107,916 L1107,902 C1107,901.447715 1106.55228,901 1106,901 L1084,901 Z" />
36 <TextBlock
37 Grid.Column="2"
38 Grid.Row="0"
39 Text="{Binding WORKCENTER_NAME}"
40 VerticalAlignment="Center"
41 Margin="5" />
42 <TextBlock
43 Grid.Column="2"
44 Grid.Row="1"
45 x:Name="Part_WorkStationName"
46 Text="{Binding WORKSTATION_NAME}"
47 VerticalAlignment="Center"
48 Margin="10 5 0 5" />
50 </Grid>
51 </Border>
52 <DataTemplate.Triggers>
53 <DataTrigger Binding="{Binding IsSelected, RelativeSource={RelativeSource AncestorType=ListBoxItem}}" Value="False">
54 <Setter TargetName="Part_WorkStationName" Property="Foreground" Value="{DynamicResource GrayBrush1}" />
55 <Setter TargetName="Part_Icon" Property="Fill" Value="{DynamicResource GrayBrush5}" />
56 </DataTrigger>
57 <DataTrigger Binding="{Binding IsSelected, RelativeSource={RelativeSource AncestorType=ListBoxItem}}" Value="True">
58 <Setter TargetName="Part_WorkStationName" Property="Opacity" Value="0.8" />
59 <Setter TargetName="Part_Icon" Property="Fill" Value="{StaticResource WhiteBrush}" />
60 </DataTrigger>
61 </DataTemplate.Triggers>
62 </DataTemplate>
63 </ListBox.ItemTemplate>
64 </ListBox>
View Code
修改好后的效果图如下图，当当当当~~~~很好，非常靓仔
TextBlock
