TreeView节点被突出显示，即使我没有右键单击节点 [英] treeview node is highlighted even i did not right click on the node

问题描述

我在一个winform和我的用户界面的工作有一个TreeView，我发现树节点将被突出显示，即使我没有点击右键鼠标（例如，当我点击下面的节点1将突出显示的节点上位置），但我真的不因为我想表现出不同的上下文菜单的时候我没有上一个TreeNode点击喜欢这种行为

+的RootNode

  | _节点1 [右键点击这里，节点1将突出显示] 
 | 
 | _节点2 [右键点击这里，节点2将被突出显示] 
  

解决方案

我已经找到另一种方法来防止节点成为亮点，当用户未在节点上单击，我只加时设置的背景色和前景色为每个节点它树

  newNode.BackColor = treeview1.BackColor; 
 newNode.ForeColor = treeview1.ForeColor; 
 treeview1.Nodes.Add（newNode）; 
  

然后在MouseDown事件中，设置SelectedNode属性如下

 私人无效treeView1_MouseDown（对象发件人，MouseEventArgs E）
 {
树节点节点= treeView1.GetNodeAt（e.Location）; 
如果（节点= NULL&放大器;！&安培; Node.Bounds.Contains（e.Location））
 treeView1.SelectedNode =节点; 
，否则
 treeView1.SelectedNode = NULL; 
} 
  

I am working on a winform and on my UI there is a treeview, I found that the treenode will be highlighted even I did not click on the node by right mouse (eg, Node1 will be highlighted when I click on the following position), but i really do not like this behavior because I want to show a different context menu when I did not click on a treenode

+RootNode

  |_ Node1                [ Right Click Here, Node1 will be highlighted]
  |
  |_ Node2                [ Right Click Here, Node2 will be highlighted]

解决方案

I have found another method to prevent the node to be highlight when the user not click on the node, and I only set the BackColor and ForeColor for each of the node when adding it to the tree

newNode.BackColor = treeview1.BackColor;
newNode.ForeColor = treeview1.ForeColor;
treeview1.Nodes.Add(newNode);

Then in the MouseDown event, set the SelectedNode property as following

 private void treeView1_MouseDown(object sender, MouseEventArgs e)
 {
        TreeNode Node = treeView1.GetNodeAt(e.Location);
        if (Node != null && Node.Bounds.Contains(e.Location))
            treeView1.SelectedNode = Node;
        else
            treeView1.SelectedNode = null;
 } 

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