Question

我必须为wpf应用程序

制作以下组合框

以下类型

public class Protocol
{
    public int Id {get;set}
    public string Name {get;set}
    public int Speed {get;set}
    public int Security {get;set}
}

所以我制作了一个自定义评级控件，它采用图像和整数（即速度或安全性）来填充带有图像的矩形WrapPanel。我为组合框创建了DataTemplate，如下所示

<ComboBox x:Name="pro" IsSynchronizedWithCurrentItem="True" Grid.Row="1" Margin="40,41,50,0"   VerticalAlignment="Top"
                  Style="{StaticResource ProtocolComboBoxStyle}"
                   ItemsSource="{Binding Protocols}" 
                  SelectedItem="{Binding Protocol, UpdateSourceTrigger=PropertyChanged, Mode=TwoWay}" 
                  Height="29" SelectionChanged="ComboBox_SelectionChanged">
            <ComboBox.ItemTemplate>
                <DataTemplate DataType="{x:Type models:Protocol}">
                    <WrapPanel Orientation="Horizontal">
                        <TextBlock Width="145" Padding="10,2,0,2" x:Name="text" Style="{StaticResource SettingsInactiveTextBlockStyle}" Text="{Binding Name}" HorizontalAlignment="Center"/>
                        <controls:RatingControl FilledImage="pack://application:,,,/SampleApp;component/Resources/Images/Settings/SettingsHome/security_filled.png"
                                                        UnfilledImage="pack://application:,,,/SampleApp;component/Resources/Images/Settings/SettingsHome/security_unfilled.png"
                                                        Rating="{Binding Security}" HorizontalAlignment="Right"/>
                        <controls:RatingControl Margin="5,2,0,0" FilledImage="pack://application:,,,/SampleApp;component/Resources/Images/Settings/SettingsHome/speed_filled.png"
                                                        UnfilledImage="pack://application:,,,/SampleApp;component/Resources/Images/Settings/SettingsHome/speed_unfilled.png"
                                                        Rating="{Binding Speed}" HorizontalAlignment="Right"/>
                    </WrapPanel>
                </DataTemplate>
            </ComboBox.ItemTemplate>
        </ComboBox>

除了初始选择之外，它工作正常，只有协议名称在togglebutton中发生变化，左边的评级控件不会改变。

另外，选择项目确实会更改视图模型中的绑定selectedProtocol属性。

请告诉我，如果我遗失了什么？提前致谢

comboBox（WPF）仅为第一个选择显示所选项目，仅在第一个选择后更改文本

0 个答案: