单击节点图像时，T​​reeView展开或折叠 [英] TreeView expand or collapse when clicking on node image

问题描述

我已经搜索了很多，寻找问题的答案，但我还没有找到

我希望我的asp TreeView在单击每个节点的图标时可以展开或折叠，我在双击该节点时已经看到很多展开或折叠，但是我只希望在单击节点图像时看到它

出现问题是因为我们有一项不允许使用+/-按钮的要求.

Ive searched a lot looking for an answer for the problem but i havent found it

I want my asp TreeView to expand or collapse when clicking on the icon of each node, I ve seen a lot of expanding or collapsing when double clicking on the node, but i want it when clicking on the node image ONLY

The problem comes because we have a requirement which is not allowed to have the +/- buttons.

推荐答案

您可以使用NodeMouseClick事件，只需检查节点是否已展开.

Hi,

you can use the NodeMouseClick Event and simply check if node is expanded or not.

if (e.Node.IsExpanded)
                e.Node.Collapse();
            else if (e.Node.Nodes.Count > 0)
                e.Node.Expand();

致以最诚挚的问候

With best Regards

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