Add and delete Tree nodes with context menu in app designer

56 次查看（过去 30 天）
Jae-Hee Park
Jae-Hee Park 2022-6-15
编辑： Alberto Cuadra Lara 2022-6-15
Hi!
I am making an app using app designer.
There is a uitree, and I was able to create a child node of that uitree through the add button like below.
function buttonPushed(app,event)
app.TreeNode = uitreenode(app.Scenario1Node);
end
But after creating multiple nodes, I can't figure out how to remove the selected node.
What should I do?
My goal is that when creating a node, the contextmenu of the node is also created, and the contextmenu has a function to delete the selected node.
please help me! Thank you.

请先登录，再回答此问题。

采纳的回答

Alberto Cuadra Lara
Hi Jae-Hee,
You can delete the node directly as follows
% Remove node of UITree
delete(app.TreeNode)
% If you want to remove only its children use
delete(app.TreeNode.Children)
  2 个评论
Jae-Hee Park
Jae-Hee Park 2022-6-15
when I want to delete just one Children Node, how can I select that node and delete?
Alberto Cuadra Lara
Alberto Cuadra Lara 2022-6-15
编辑：Alberto Cuadra Lara 2022-6-15
To obtain the selected nodes use the SelectedNodes property of the object Tree
delete(app.Tree.SelectedNodes);
To delete a particular position of the TreeNode array use
delete(app.TreeNode.Children(3))

请先登录，再进行评论。

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Develop Apps Using App Designer 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by