Question

我想知道如何将DataGrid DataGridTemplateColumn绑定到DataGrid ItemSource中的那个属性，但该属性是在Itemsource的同一个DataContext中？

XAML

        // I am trying to bind the Visibility property to a property called Visible
        <DataGridTemplateColumn Header="Apply" Visibility="{Binding source Visible}">

        // However the visible property doesnt exist inside the resource cvsCustomers
        ItemsSource="{Binding Source={StaticResource CustomerCollection}}"

C＃

    // But they both live in the same ViewModel i.e. DataContext      
    private Visibility m_Visible = Visibility.Hidden;

    public Visibility Visible
    {
       get { return m_Visible; }
       set { m_Visible = value; }
    }

    private ObservableCollection<Customer> m_CustomerCollection = null;

    public ObservableCollection<Customer> CustomerCollection
    {
       get { return m_CustomerCollection; }
       set { m_CustomerCollection = value; }
    }

这可以实现吗？

由于

Answer 1

Datagrid列不在DataGrid的可视树下。因此，您需要使用BindingProxy来使DataGridTemplateColumn可以访问ViewModel。我已在下面的答案中解释了如何创建和使用BindingProxy：

Bind ViewModel property to DataGridComboBoxColum

设置BindingProxy后，您可以将DataGridTemplateColumn可见性绑定为

<DataGridTemplateColumn Header="Apply" Visibility="{Binding Path=Data.Visible, Source={StaticResource ProxyElement}"

WPF绑定到不在DataGrid ItemSsource中的属性

1 个答案: