WPF获取父类控件信息

xtzy89 2020-09-16 04:49:58

点击"APTIV-07"时如何获取"Project_V3"的名称，现在只能获取上一级的名称，无法获得上上级。

XAML格式为：



 <DockPanel.Resources>

                <local:Data x:Key="MyList"/>



                <HierarchicalDataTemplate DataType    = "{x:Type local:Data}"

                                ItemsSource = "{Binding Path= Versions}">



                    <TextBlock Text="{Binding Path=ProjectName}"/>

                </HierarchicalDataTemplate>



                <HierarchicalDataTemplate DataType    = "{x:Type local:Version}"

                                ItemsSource = "{Binding Path=Machines}">

                    <TextBlock Text="{Binding Path=Ver_Name}"/>

                </HierarchicalDataTemplate>



                <DataTemplate DataType="{x:Type local:Machine}">

                    <TextBlock Text="{Binding Path=MachineName}" MouseLeftButtonDown="TextBlock_MouseLeftButtonDown" />

                </DataTemplate>

            </DockPanel.Resources>



            <Menu x:Name="menu" DockPanel.Dock="Top" VerticalAlignment="Top" Visibility="Collapsed"

              GotKeyboardFocus="menu_GotKeyboardFocus"

              LostKeyboardFocus="menu_LostKeyboardFocus"

              ContextMenuOpening="menu_ContextMenuOpening">

                <MenuItem Header="Project"

                  ItemsSource="{Binding Projects}" >

                </MenuItem>

            </Menu>

获取上级目录用的方法是：



public static T GetParent<T>(DependencyObject obj) where T : FrameworkElement

        {

            if (obj != null)

            {

                DependencyObject parent = VisualTreeHelper.GetParent(obj);

                while (parent != null)

                {

                    if (parent is T)

                    {

                        return (T)parent;

                    }

                    parent = VisualTreeHelper.GetParent(parent);

                }

            }

            return null;

        }



//获取上级

var parent = GetParent<StackPanel>(e.OriginalSource as DependencyObject);

string currentVersion = ((Version)parent.DataContext).Ver_Name;