WPF多列组合框
问题描述：
我将以下数据模板用于多列组合框:
I have the following data template used for a multicolumn combo box:
<DataTemplate x:Key="ShipViaKey">
<Grid Height="23" Width="Auto" ShowGridLines="False">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="100"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<TextBlock Grid.Column="0" Text="{Binding Code}"/>
<TextBlock Grid.Column="1" Text="{Binding Carrier}"/>
</Grid>
</DataTemplate>
组合框的定义如下:
<ComboBox Grid.Row="0" Grid.Column="1" x:Name="CboShipVia" SelectedValue="{Binding FkCarrier, Mode=TwoWay}" SelectedValuePath="PkCarrier" IsEnabled="{Binding HasData}" ItemTemplate="{StaticResource ShipViaKey}"/>
一切都很好；除了我只想在组合框中显示所选项目的代码"，而不是同时显示两个值.有办法吗?
This is all fine; except I want to only display the "Code" of the selected item in the combo box, not both values. Is there a way to do this?
答
而不是ItemTemplate，请使用ItemContainerStyle:
<ComboBox.ItemContainerStyle>
<Style TargetType="ComboBoxItem">
<Setter Property="ContentTemplate">
<Setter.Value>
<DataTemplate>
<Grid Height="23" Width="Auto" ShowGridLines="False">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="100"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<TextBlock Grid.Column="0" Text="{Binding Code}"/>
<TextBlock Grid.Column="1" Text="{Binding Carrier}"/>
</Grid>
</DataTemplate>
</Setter.Value>
</Setter>
</Style>
</ComboBox.ItemContainerStyle>
此外，将DisplayMemberPath设置为Code属性.