Question

我已经在此example之后构建了一个用户界面...并希望添加两个按钮来重新排序列表框所选项目（向上移动 - 向下移动）在＆＃34;那里＆＃ 34;名单。有任何想法使用Caliburn Micro吗？

Answer 1

您需要为SelectedThereItem添加一个属性，并将其绑定到ThereList：

XAML：

<ListBox x:Name="ThereList" SelectedItem="{Binding ThereSelectedItem}" ... />
<!-- Add buttons for ThereMoveUp and ThereMoveDown - use Caliburn naming convention -->
<Button x:Name="ThereMoveUp"/>
<Button x:Name="ThereMoveDown"/>

视图模型：

private Person _thereSelectedItem;
public Person ThereSelectedItem
{
    get { return _thereSelectedItem; }
    set
    {
        _thereSelectedItem = value;
        NotifyOfPropertyChange(() => ThereSelectedItem);
        NotifyOfPropertyChange(() => CanThereMoveDown);
        NotifyOfPropertyChange(() => CanThereMoveUp); 
    }
}

// Add event method handlers for ThereMoveUp/Down
public bool CanThereMoveUp { get { return _thereSelectedItem != null; } }
public void ThereMoveUp
{
    // Logic to move up
}

public bool CanThereMoveDown { get { return _thereSelectedItem != null; } }
public void ThereMoveDown
{
    // Logic to move down
}

Caliburn Micro Listbox向上或向下移动项目

1 个答案: