Treeview - 禁止空节点重命名 [英] Treeview - forbid empty node rename

问题描述

我有一个TreeView（使用Crownwood.DotNetMagic，它应该类似于WinForms），当用户编辑节点时，当文本为空时，不应允许他离开编辑模式。



TreeView有类似的事件，如来自WinForms的这个树视图



我尝试了什么：



我尝试在我的AfterLabelEdit中执行此操作，但它并不完全符合我的要求：它将文本设置回原始文本但我希望它在编辑模式下保持为空（用户）应该不允许提交他的更改）

I have a TreeView (using Crownwood.DotNetMagic, it should be similar to WinForms) and when the user edits a node, he should not be allowed to leave the edit mode when the text is empty.

The TreeView has similar events like this treeview from WinForms

What I have tried:

I've tried doing this in my AfterLabelEdit but it doesn't exactly do what I want: It sets the text back to the original text but I want it to stay empty in the edit mode (the user should just not be allowed to commit his changes)

if (String.IsNullOrEmpty(e.Label))
{
    e.Cancel = true;
    e.Node.BeginEdit();
    return;
}

推荐答案

通过PF Key创建添加节点，删除和重命名/替换节点功能，按钮等，并提示所需的数据应用于树视图/节点。



如果你保持树视图的控制，你的生活会更简单维护过程，而不是猜测用户在移动后可能尝试做什么。

Create an "add node", delete and a "rename / replace" node function via a PF Key, button etc, and prompt for the required data to apply to the tree view / node.

Your life will be simpler if you maintain "control" of the tree view maintenance process instead of guessing what the user might be trying to do after they've made a move.

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