WPF DataGridComboBoxColumn的数据绑定
<!--DataGrid的列并没有数据上下文,所以其ItemsSource绑定要向上查找 -->
<DataGridComboBoxColumn Header="省份">
<DataGridComboBoxColumn.EditingElementStyle>
<Style TargetType="ComboBox">
<Setter Property="ItemsSource" Value="{Binding DataContext.ProvinceList,RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=UserControl}}" />
<Setter Property="DisplayMemberPath" Value="ProvinceName"/>
<Setter Property="SelectedValue" Value="{Binding Path=Value}" />
</Style>
</DataGridComboBoxColumn.EditingElementStyle>
<DataGridComboBoxColumn.ElementStyle>
<Style TargetType="ComboBox">
<Setter Property="ItemsSource" Value="{Binding DataContext.ProvinceList,RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=UserControl}}" />
<Setter Property="DisplayMemberPath" Value="ProvinceName"/>
<Setter Property="SelectedValue" Value="{Binding Path=Value}" />
</Style>
</DataGridComboBoxColumn.ElementStyle>
</DataGridComboBoxColumn>