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我是一名 C++ 开发人员，最近搬到了 wpf。我似乎遇到了一个棘手的情况，我必须根据单选按钮单击动态生成标签。在这里，我将首先向您展示我是如何生成 4 个单选按钮的。

XAML：

<Grid Grid.Row="0">           

        <ItemsControl ItemsSource="{Binding Children}">
            <ItemsControl.ItemsPanel>
                <ItemsPanelTemplate>
                    <StackPanel Orientation="Vertical"
                    IsItemsHost="True" />
                </ItemsPanelTemplate>
            </ItemsControl.ItemsPanel>

            <ItemsControl.ItemTemplate>
                <DataTemplate>
                    <RadioButton Content="{Binding RadioBase}" Margin="0,10,0,0" IsChecked="{Binding BaseCheck}" Height="15" Width="80" HorizontalAlignment="Center" VerticalAlignment="Center"/>
                </DataTemplate>
            </ItemsControl.ItemTemplate>
        </ItemsControl>          

    </Grid>

<Grid Grid.Row="1">
    <Label Content="{Binding name}" HorizontalAlignment="Center" VerticalAlignment="Center" />      
</Grid>

视图模型：

private bool sBaseCheck;
    public bool BaseCheck
    {
        get { return this.sBaseCheck; }
        set
        {
            this.sBaseCheck = value;                
            this.OnPropertyChanged("BaseCheck");
        }
    }

    private int _ID;
    public int ID
    {
        get
        {
            return _ID;
        }

        set
        {
            _ID = value;
            OnPropertyChanged("ID");
        }
    }

    private string _NAme;
    public string name
    {
        get
        {
            return _NAme;
        }

        set
        {
            _NAme= value;
            OnPropertyChanged("name");
        }
    }

    private string _RadioBase;
    public string RadioBase
    {
        get
        {
            return _RadioBase;
        }

        set
        {
            _RadioBase = value;
            OnPropertyChanged("RadioBase");
        }
    }

另一个ViewModel 类：

public ObservableCollection<FPGAViewModel> Children { get; set; }

    public FPGARadioWidgetViewModel()
    {
        Children = new ObservableCollection<FPGAViewModel>();
        Children.Add(new FPGAViewModel() { RadioBase = "Base 0x0", ID = 0 });
        Children.Add(new FPGAViewModel() { RadioBase = "Base 0x40", ID = 1 });
        Children.Add(new FPGAViewModel() { RadioBase = "Base 0x80", ID = 2 });
        Children.Add(new FPGAViewModel() { RadioBase = "Base 0xc0", ID = 3 });            
    }

这给了我 4 个带有上述内容的单选按钮。现在我想在每次单击单选按钮时生成 8 个标签。我在我的 C++ 应用程序中这样做了，如下所示：

for(i = 0; i < 0x40 / 8; i++)
{
    reg = (i * 8);
    m_registerLabel[i] = new Label(String::empty, String("Reg 0x") + String::toHexString(reg));
    addAndMakeVisible(m_registerLabel[i]);
}

如果您注意到，它将创建 8 个带有值 as Reg 0x0, Reg 0x8, Reg 0x10, Reg 0x18etc 的标签，因为 reg 已转换为十六进制字符串。Base 0x0当我点击启动时，我想生成这样的东西。

我怎样才能在我的应用程序中实现这一点？？？

4

1 回答 1

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在您的this.sBaseCheck设置器中，您可以执行此代码。

private bool sBaseCheck;
public bool BaseCheck
{
    get { return this.sBaseCheck; }
    set
    {
        this.sBaseCheck = value;                
        Generatelabels(this)
        this.OnPropertyChanged("BaseCheck");
    }
}

添加 2 个新属性...

  private string[] registerLabels = new string[8];
  public string[] RegisterLabels { get { return registerLabels; } }

  private bool isRegisterItemsVisible = false;
  public bool IsRegisterItemsVisible { 
       get { return isRegisterItemsVisible ; }
       set { 
           isRegisterItemsVisible = value; 
           OnPropertyChanged("IsRegisterItemsVisible"); 
           OnPropertyChanged("RegisterLabels"); 
       }
  }

填充这些值...

private static void Generatelabels(FPGAViewModel currentItem)
{
  for(i = 0; i < 0x40 / 8; i++)
  {
       reg = (i * 8);
       currentItem.RegisterLabels[i] = "Reg 0x" + String::toHexString(reg);
       currentItem.IsRegisterItemsVisible = true;
   }
}

在您的 GUI 上，将它们与现有 ItemsControl 中的ItemsControl另一个绑定。ItemTemplate

        <ItemsControl.ItemTemplate>
            <DataTemplate>
                <StackPanel Orientation="Vertical">
                    <RadioButton 
                       Content="{Binding RadioBase}"
                       Margin="0,10,0,0"
                       IsChecked="{Binding BaseCheck}" 
                       Height="15" Width="80" 
                       HorizontalAlignment="Center" 
                       VerticalAlignment="Center"/>
                    <ItemsControl 
                           Visibility="{Binding IsRegisterItemsVisible,
                                Converter={StaticResource BoolToVisibilityConv}}" 
                           ItemsSource="{Binding RegisterLabels}">   
                       <ItemsControl.ItemTemplate>
                          <DataTemplate>
                             <TextBlock Text="{Binding}"/>
                           </DataTemplate>
                       </ItemsControl.ItemTemplate>
                    </ItemsControl>
                </StackPanel>
            </DataTemplate>
        </ItemsControl.ItemTemplate>
于 2012-10-25T12:07:28.253 回答