如何更改切换按钮上的属性值 已选中

Question

在我的基类中，我有以下内容：

    private string groupOperator;
    public string GroupOperator
    {
        get
        {
            this.groupOperator = ConvertOperatorToString();
            return this.groupOperator;
        }
        set
        {
            this.groupOperator = value;
            OnPropertyChanged("GroupOperator");
        }
    }
    private bool isOrOperator = false;
    public bool IsOrOperator
    {
        get
        {
            return this.isOrOperator;
        }
        set
        {
            this.isOrOperator = value;
            OnPropertyChanged("IsOrOperator");
        }
    }
    public string ConvertOperatorToString()
    {
        if (IsOrOperator)
        {
            return "Or";
        } 
        else
        {
            return "And";
        }
    }

我正在使用文本块在我的 XAML 中显示组运算符。理想的功能是根据是否切换切换按钮，在 And/Or 之间更改字符串值。现在，它根本没有更改文本块，我想知道我做错了什么。

这是我的 XAML：

<TextBlock Style="{StaticResource TextBlockBaseStyling}" VerticalAlignment="Center" Text="{Binding GroupOperator, UpdateSourceTrigger=PropertyChanged}"/>
                                            <ToggleButton x:Name="OperatorSwitch" Style="{StaticResource ToggleViewSwitch}"
                                            Visibility="{Binding IsToggleVisible, UpdateSourceTrigger=PropertyChanged}"
                                            IsChecked="{Binding IsOrOperator, UpdateSourceTrigger=PropertyChanged, Mode=TwoWay}"/>
                                        </Grid>
                                    </Grid>
                                    <ItemsPresenter x:Name="ItemsHost" Grid.ColumnSpan="2" Grid.Column="1" Grid.Row="1"/>
                                </Grid>
                            </Border>
                        </Grid>
                        <TextBlock Style="{StaticResource TextBlockBaseStyling}"
                                   Text="{Binding ParentGroup.GroupOperator, UpdateSourceTrigger=PropertyChanged}"
                                   Visibility="{Binding IsOperatorVisible, Converter={StaticResource BooleanConverter}, UpdateSourceTrigger=PropertyChanged}"
                                   VerticalAlignment="Center" HorizontalAlignment="Center" Margin="0, 10, 0, 0"/>
                    </StackPanel>

注意：当正确处理 PropertyChange 时，ParentGroup.GroupOperator 和 GroupOperator 实际上应该是相同的值。

Answer 1

你的代码应该是

public string GroupOperator
{
    get
    {
        return ConvertOperatorToString();
    }
}
private bool isOrOperator = false;
public bool IsOrOperator
{
    get
    {
        return this.isOrOperator;
    }
    set
    {
        this.isOrOperator = value;
        OnPropertyChanged("IsOrOperator");
        OnPropertyChanged("GroupOperator");
    }
}

当设置运算符值更改多个属性时，您需要在更改时通知更多属性更改