Question

在我的程序中，我有TreeView由ViewModel / Model实现和管理。

这是用于将每个节点添加到树的方法，它位于TreeView的ViewModel中：

private TreeModel createNewNode(string value1, string value2, string value3 )
{
    return new BlockingTreeModel()
    {
        DisplayName = "Example Node",
        Children =
        {
            new TreeModel() { DisplayName = "Child 1: " + value1},
            new TreeModel() { DisplayName = "Child 2: " + value2 },
            new TreeModel() { DisplayName = "Child 3: " + value3 }
        }
    };
}

我想使用DisplayName的每个孩子的SelectedItem值。我该如何调用该值？例如，将textBox的内容设置为等于其中一个DisplayNames ...

现在我已经达到了：

TextBox = Tree.SelectedItem.Children //This is where I am guessing that I need to use a method like .Count()

谢谢。

更新1

TreeView的XAML：

<TreeView ItemsSource="{Binding BlockingTree.BlockTree}" SelectedItemChanged="Tree_SelectedItemChanged" PreviewMouseRightButtonDown="Tree_PreviewMouseRightButtonDown" ... >

Answer 1

试试这个：

<TreeView ItemsSource="{Binding BlockingTree.BlockTree}" DisplayMemberPath="DisplayName" SelectedItemChanged="Tree_SelectedItemChanged" PreviewMouseRightButtonDown="Tree_PreviewMouseRightButtonDown" x:Name="TreeViewBox" ... >


<TextBox Text="{Binding SelectedItem.DisplayName, ElementName=TreeViewBox}" />

如何在TreeView中调用SelectedItem的Child来检索数据值

1 个答案: