小编tim*_*tim的帖子

仅在选择组合中的某个项目时尝试显示标签.代码应该解释它.

    <ComboBox Name="comboMyCombo">
        <ComboBoxItem>Don't show the label</ComboBoxItem>
        <ComboBoxItem>Show the label</ComboBoxItem>
    </ComboBox>

    <Label Visibility="Collapsed">This is my label
        <Label.Style>
            <Style>
                <Style.Triggers>
                    <DataTrigger 
                            Binding="{Binding ElementName=comboMyCombo, Path=SelectedValue}" Value="Show the label">
                        <Setter Property="Label.Visibility" Value="Visible"></Setter>
                    </DataTrigger>
                </Style.Triggers>
            </Style>
        </Label.Style>
    </Label>