Question

Menu.Pages填充了这个：

        this.Menu = new Menu()
        {
            Pages = new List<Page>()
            {
                new Page() {
                    Title = "ergre",
                    URI = "rgerg"
                },
                new Page() {
                    Title = "herth",
                    URI = "wefwe"
                }
            }
        };

我有以下XAML：

    <ListBox Grid.Column="0"
             Grid.Row="1"
             x:Name="Pages"
             ItemsSource="{Binding Menu.Pages}">
        <ListBox.ItemTemplate>
            <DataTemplate>
                <StackPanel>
                    <Button Command="{Binding ElementName=Pages, Path=DataContext.ButtonCommand_LoadGagPage}">
                        <TextBlock Text="{Binding Title}"></TextBlock>
                    </Button>
                </StackPanel>
            </DataTemplate>
        </ListBox.ItemTemplate>
    </ListBox>

绑定到按钮的命令会正确触发以下方法：

...    
ButtonCommand_LoadGagPage = new RelayCommand<Page>((param) => ButtonCommand_ExecuteLoadGagPage(param));    
...


public RelayCommand<Page> ButtonCommand_LoadGagPage
{
    get;
    private set;
}

public void ButtonCommand_ExecuteLoadGagPage(Page page)
{
    // page is null :( ?
}

但是，页面变量不包含页面。如何正确连接对象......

Answer 1

我忘了放置CommandParamter属性。以下解决了这个问题！

vector<vector<int> > A(m)

ViewModel中的RelayCommand不包含XAML命令中绑定的Listbox对象

1 个答案: